ErrorCode TroubleshootingGuide · 2020. 10. 13. · About...

Error CodeTroubleshooting Guide

Revised (May 2019)

Contents

About This Document 1

Additional Documentation 1

OnlineManual 1

Revision History 2

Error Codes 3

About 3

Viewing Error Codes 3

Troubleshooting with Error Codes 4

About 5

Repeating Error Codes 5

Troubleshooting 5

Removing Error Codes 6

Saving the CPA Error Log 6

Basic Troubleshooting 7

01, 02, 03, 04 9

05 10

09 11

10 12

11 13

12 15

14 17

15 18

16 20

17 21

18 22

19 23

20 24

21 25

22, 23, 26 27

24 28

Page ii

25 30

22, 23, 26 31

27, 28, 29 Overview 32

27 33

28 34

29 35

30, 31, 32, 33 38

35 41

36 42

37 43

38 44

39 46

40 47

42 50

44 52

45 53

46 55

47, 48 57

50 59

56 60

57, 58 62

59 63

60, 61 64

62 66

63 67

65, 66 68

67 69

69 70

70-79 Overview 72

70, 71, 72, 73 73

74, 75, 76, 77 75

78, 79 77

Page iii

80, 81, 82, 83 78

84 80

85 81

86, 87 82

88 83

89 84

90, 91, 92, 93, 94, 95 85

96, 97, 98 86

Error 96 86

Error 97 86

Error 98 87

E2 88

E4 89

ERR 90

LS 91

Edition Information i

Edition i

OnlineManual i

Copyright i

Notices and Safety ii

Trademarks ii

Intellectual Property ii

Warranty ii

Safety Notices ii

Warning iii

Caution iii

Service SafetyGuidlines iii

Page iv

About This DocumentThis document describes all standard error codes implemented across Precor cardio exercise equip-ment. Error codes are system generated codes that identify specificmachine fault conditions.

Each error code topic provides the error code name, what equipment the code applies to, the asso-ciated issues and symptoms, information to help you troubleshoot the issue, and steps to repair thefault condition:

l Error Code Number(s): Error code number(s) associated with that particular issue (one issuecan be associated with multiple error codes).

l Description: Brief description of the error code.l Applies to: Equipment and/or systems that are associated with the error code.l Issue System(s): Information about themost probable causes and other related event(s) thatcould trigger the error code. It must be understood that this information cannot describe or anti-cipate all possible issues that could trigger this error code.

l Troubleshooting: Troubleshooting Information to help identify the system or component that iscausing the issue and triggering the error code. Plus repair steps to correct the issue and clearthe error code.

Additional Documentation

Online Manual

There is also an online version available, (must be connected to the internet): click Online Ser-viceManual.

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https://precor.mcoutput.com/108884/Default.htm


Revision HistoryThis document describes all standard error codes that exist within the Precor software hierarchy forproducts currently supported by Precor.

REVISION DATE REVISION DESCRIPION

07/2017 Added Error 56 and format updates.

11/2017 Added Chrono1 bike error codes; updated 5, 11, 30, 46, 65, 66 and addednew codes 47, 48, 57, 58, 59, 63, 67, 84, 96, 97, and 98.

Added Error 89.

05/2018 Updated Error 30, Symptoms and troubleshooting for the Chrono bike.

06/2018 Added Error 39 "Communication Error fromActive Status Light to LPCA2."

07/2018 Updated Errors 16 and 38, u Updated Error 40, Lift check steps, andupdated Error 86/87 to include 600 series softwaremismatches.

06/2019 Moved to onlinemanual, added basic troubleshooting section.

1Spinner® Chrono™ Power bike.2Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.

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Error CodesAbout

There is a set of standard error codes implemented across Precor cardio exercise equipment. Errorcodes are system generated codes that identify specificmachine fault conditions. Themaintenancesoftwaremonitors error code event conditions, when a fault is detected, the error code is generatedand stored in the Error Log (or CPA1Event Log) along with relatedmachinemetrics, such as, themachinemileage (or hours), the time, drivemotor current, etc.

Error code numbers range from 01 to 99. There are also a small number of alpha and alphanumericcodes. Most, but not all, error codes are grouped into numeric ranges to help easily identify commonsystem issues.

Viewing Error Codes

Error codes are stored and viewed in either the Error Log on LED consoles (P10, P30, P30i, and P31)or the CPA Event Log on touchscreen consoles (P62, P80, and P82),

1Touchscreen console Control Processing Assembly.

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l On LED consoles (P10, P30, P30i, and P31): access the Information Display (65) > selectError Log.

l On Touchscreen consoles (P62, P80, and P82): access the Service Settings menu(51765761) > select About > CPA Event Log

TIP: Error codes can be deleted from the Error Log on LED consoles (P10, P30, P30i, andP31). Press and hold the PAUSE/RESET key for aminimumof 6 seconds to open the ErrorLog and view all logged error codes. If there are no logged error codes, the "Stuck Key"mes-sage will show. To remove error codes, select the error code and press/hold the QUICKSTART key until the "NOERRORS"message shows.

Note: On touchscreen consoles (P62, P80, and P82)., error codes cannot be deleted fromthe CPA Event Log (or error log).

Troubleshooting with Error Codes

1. Review the equipment Error Log (or CPA Event Log) to identify any current active error codes.Also look at the error code history for any past error codes that may provide insight to the cur-rent active error code issue.

2. Next go to the error code topic for error code troubleshooting and repair information.

Note: Be aware that not all machine failures will cause an error code event. Use physicalobservation andmechanical troubleshooting skills to resolve non error code issues.

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About

The Error Log is a servicemaintenance function used to store "log" and view detected error codes. OnLED consoles (P10, P30, P30i, and P31) you use the "Error Log" to view error codes. On touchscreenconsoles (P62, P80, and P82) you use the "CPA1Event Log" to view error codes.

IMPORTANT: On touchscreen consoles (P62, P80, and P82), use the CPA Event Log andnot the Event Log to view themaintenance error codes. The touchscreen console Event Logincludes additional OEMuse only error codes.

The Lower PCA2maintenance softwaremonitors error code event conditions, when a fault is detec-ted, the error code is generated and transmitted to the console upper PCA3where it is stored andviewed in the Error Log or CPA Event Log. The error log shows the error code along with relatedmachinemetrics, such as, themachinemileage (or hours), the time when the event occured, the date,and other machine specific associated data.

Error event codes are sequentially stored inmemory on a First-In Last-Out basis, the newest errorcode is stored in the number one stack position pushing any current stored error codes down one pos-ition. When thememory is full, the next code is stored pushing the oldest error code from the stackremoving it frommemory.

Repeating Error Codes

When an error event is detected, the error code information will be stored into the error log. However,whenmultiple instances of the same error code event occur within the same hour or odometer read-ing, only the first occurrence will be logged. One of the following conditionsmust occur to cause arepeating error code to be subsequently logged:

l the elapsed timemust exceed one hour from the first occurrencel or the odometer mileagemust change from the first occurrencel or a different intervening error code is logged

Note: Multiple repeating instances of the same error code event occurring during the samehour or odometer reading will only be logged as a single error code event.

Troubleshooting

Always review the Error Log or CPA Event Log when troubleshooting an issue. The error logswill con-tain all current and past error error codes from the last log reset. You can then refer to the Error CodeTroubleshooting Guide ((missing or bad snippet)) to learn about the error code and information to helpresolve the issue.

Note: Be aware that not all machine failures will cause an error code event. Use physicalobservation andmechanical troubleshooting skills to resolve non error code issues.

1Touchscreen console Control Processing Assembly.2Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.3Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.

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Removing Error Codes

Use the CLEAR softkey to remove all error codes from the CPA Error Log.

Saving the CPA Error Log

The save CPA Event Error Log feature is used by Precor to investigatemachine issues. Occasionally,Precor may request you to save the CPA Error Log error code data to a USB1 flash drive and thensend the USB drive to Precor customer service.

To save the CPA Error Log:

l Access the CPA Event Log.l Insert a USB flash drive into the USB chin port.l Then wait for the SAVE button to highlight and select SAVE.l Follow prompts to complete the save process.l Remove the USB flash drive and verify that the error log data file was saved.l Return the USB drive as directed by Precor customer service.

1Short for Universal Serial Bus, is an industry standard developed in themid-1990s that defines thecables, connectors and communications protocols used in a bus for connection, communication, andpower supply between computers and electronic devices.

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Basic TroubleshootingWhenmaking a guess or rushing a repair, errors can bemade that cost both time andmoney. Precorhighly recommends a proper troubleshooting process, such as the AVERTED model (below), alwaysbe followed:

l A – Ask the customero What was the original complaint?o Whenwas it reported?o Has this happened before?

l V – Verify the issueo Actively use the unito Use your senseso Check error codeso Can you repeat the issue?o Note themileage/hours of use

l E – Eliminate componentso Follow the error code troubleshooting guideo Identify the systems involvedo Test and isolateo Test the system components

l R – Repair the unito Use service documentso If unable to complete the repair, contact Precor

l T – Test the systemo Fully test the unito Check all functions under load

l E – Educate the customero Explain parts ordered and timeline for completiono Educate the customer on the changes you’vemade and why

l D – Document the processo Write down the what and whyo Detail reasons for replacementso Update service logo Fill out the warranty claims form

Troubleshooting steps

1. Check the error codes.a. Check time occurred andmileage.

2. Clear the error codes and power down the unit.

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3. With power off, check cable connections andmake sure all connectors are fully seated.4. Power on the unit.5. Fully power up the unit and check the error code log for error reoccurrence.6. Refer to applicable error code and/or continue troubleshooting as appropriate.

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01, 02, 03, 04Memory, Ram & EEPROM1 Test Errors

Applies to

All cardio equipment

Issue Symptoms

For errors 00 through 04, check upper PCA2memory locations, RAMmemory locations, and theEEPROMchecksum during the power up test sequence. If a fault is found during the power-up testsequence, the appropriate error code will be displayed.

While rare, thesemessagesmay display intermittently due to external causes. If the unit's AC3 inputsignificantly dips during the power-up test sequence, the test could fail, which will trigger one of theseerrors. In addition, treadmills operating on non-dedicated branch AC circuitsmay see these errors onan intermittent basis.


1. Reproduce the error and evaluatea. Switch OFFthe unit.b. Switch ON the unit. Repeat.c. If the error message is consistently displayed when the unit is powered up, replace the

upper PCA.

1Electrically erasable programmable read-onlymemory and is a type of non-volatile memory.2Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.3Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.

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05Key Stuck In The Operated Position At Power Up

Applies to

P series, R series, and Chrono1Spin bike consoles

Note: Error 05 has not been displayed on Precor equipment since 2003. It was replaced bythe simpler “Stuck Key” message, and is not recorded in the error log.

Issue Symptoms – P and R series

The power up test sequence has detected a key stuck in the operated "ON" position. A permanentlystuck key inhibits the correct operation of the unit. Likely causes are liquids present on a touch sens-itive display, or a key in the display housing is stuck in the operated condition. Less likely but possible isa failure on the upper PCA2.


1. Reproduce the error and evaluatea. Switch off unit.b. Switch on unit. Repeat.c. If the error message is consistently displayed when the unit is powered up, replace the

upper PCA.

1Spinner® Chrono™ Power bike.2Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.

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09Lower PCA1 Memory Test Errors

Applies to

All cardio equipment

Description

During the power-up test sequence, the lower PCA2memory locations are checked. Error 09 indic-ates a fault was found, which, when it is consistently displayed, is often a lower PCA problem. Failurescausing this error message to be displayed are rare.

Thesemessagesmay display intermittently due to external causes. If the unit's AC3 input significantlydips during the power-up test sequence, the test could fail and trigger one of these errors. In addition,treadmills operating on non-dedicated AC circuitsmay see these errors intermittently.


Reproduce the error and evaluate.

1. Switch OFF unit.2. Switch ON unit. Repeat.3. If the error message is consistently displayed when the unit is powered up, replace the lower

PCA.

1Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.2Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.3Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.

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10Line Frequency Out of Acceptable Range

Applies to

Treadmillsmfg. dates 2006 and later

Issue Symptoms

The AC1 line frequencymust be either 50Hz or 60Hz for Experience™ Series treadmills built 2006-2013, and between 45Hz and 65Hz for units built 2014 and later. Error 10 is triggered if the line fre-quencymoves outside the acceptable range, or if electrical noise is generated, causing a perceivedchange in frequency.

Error 10 can also be caused by electrical wiring and supply issues, such as shared neutrals or AC hotand AC neutral wires being reversed. If facility power is lost and a backup generator switches on, thefrequency can be off for a short time, causing Error 10.


Verify electrical supply

1. Verify electrical supply. Treadmillsmust be installed on an AC 20-amp dedicated branch circuit.If another piece of equipment is sharing a circuit with the treadmill, it can create enough elec-trical noise tomake AC line frequency identification impossible.

2. Most line frequency detection systemsmonitor the AC line frequency on the hot AC line. On areversed 120 VAC2 circuit, themonitoring takes place on the neutral (ground) side of the ACline. Many of themonitoring systems are incapable of detecting line frequency on the neutralwire. It must first be determined if the reversal is in the AC wiring feeding the treadmill or in thetreadmill internal wiring. The hot and neutral wires can be verified bymeasuring each in ref-erence to AC (green wire) ground.

3. Though unlikely, the AC line frequency could be out of limits. This ismore likely to occur in coun-tries where AC power systemsmay not be well controlled. There is little that can be done in thiscase.

4. If a generator is used during a power outage, during the time the generator is coming up tospeed, the line frequencymay be detected as incorrect.

5. Sometimes AC being fed into the distribution system is too electrically noisy to allow correct linefrequency identification. This can be caused by other equipment within the AC distribution sys-tem creating the electrical noise. Identifying the source of the electrical noise can be difficult.There is little that can be done in this case.

1Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.2voltage in an alternating current circuit

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11Low Voltage Watchdog (Upper PCA1)

Applies to

Treadmills, self-powered units with external AC2, and Chrono3 bikes

l "Treadmills and self-powered units with external AC" belowl "Chrono bikes" below

Treadmills and self-powered units with external AC

Issue symptoms

This watchdog programmonitors the voltage of the upper PCA4 and displays error 11 if it drops belowthe acceptable value. This can be present if the communications cable between the lower PCA andthe upper PCA is faulty, or if a failure in the upper PCA causes an overload in the low voltage powersupply, causing it to drop below the limit.

It is also possible to see thismessage displayed intermittently due to external causes. Error 11appears if the unit's AC input significantly dips during the power-up test sequence. Treadmills oper-ating on non-dedicated AC circuitsmay see thismessage displayed intermittently.


1. Test the interconnect cable.a. Clear the error log and switch OFF themachine power.b. Substitute a known good interconnect cable in place of the existing cable directly

between the upper PCA and lower PCA.c. Power ON themachine and check the error log.

2. Check the upper PCA.a. Cycle power on the unit and check the error log.b. If the error is consistently displayed when the unit is powered up, replace the console.

Chrono bikes

Issue symptoms

An internal processor failed and so the consolemaywork properly.

1Upper printed circuit assembly; generally refers to the console.2Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.3Spinner® Chrono™ Power bike.4Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.

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If this error is present and comes back after clearing, replace the console.

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12MC1 / LPCA2 Software Watchdog (Lower PCA3)

Applies to

Treadmills and powered Ellipticals

Issue symptoms

On an EFX4, the watchdog programmonitors the proper execution of software in the LPCAmicro-controllers. If a program is stuck in a routine, has amemory leak, or has any other fatal error that stopsthe program from performing its critical tasks (aka “hung”), the watchdog will be triggered.When thishappens, themicrocontroller is automatically reset and will restart operation and log an Error 12.

If it is a single occurrence, themachinemay log communication errors, go out of order, or go to pausemode before resuming normal operation. If it is continuously occurring, themachine will be unusable,and a workout cannot be started.

On a treadmill, the watchdog programmonitors the voltage of the LPCA and displays Error 12 if itdrops below the acceptable value. This can be present if the communications cable between theLPCA and the UPCA5 is faulty, or if a failure in the UPCA causes an overload in the low voltagepower supply, causing it to drop below the limit.

It is also possible to see thismessage displayed intermittently due to external causes. If the unit's AC6input significantly dips during the power-up test sequence, the test could fail resulting in thismessagebeing displayed. Treadmills operating on non-dedicated branch AC circuitsmay see thismessage dis-played intermittently.


EFX16 ellipticals

1. Install known good LPCA.2. Reprogram (future feature) or replace bad LPCA.

Treadmills

1. Test the interconnect cable.2. Clear the error log and switch OFF unit.

1Motor controller, motor controller unit, or motor controller module2Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.3Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.4Elliptical FitnessCrosstrainer5Upper PCA board6Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.

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3. Substitute a known good interconnect cable in place of the existing cable directly between theUPCA and LPCA.

4. Switch ON unit and check the error log.5. Check the UPCA.6. Cycle power on the unit and check the error log.7. If the error is consistently displayed when the unit is powered up, replace the console.

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14Fan Fail (Lower PCA1)

Applies to

Treadmills

Issue symptoms

The rotation of the LPCA2 cooling fan ismonitored. If the fan is not rotating, or rotating too slowly, anError 14 will be logged. Typical symptoms include the heat sink by the fan can get clogged with dustand/or dirt, the fan connector/cable becomes disconnected or damaged, the drivemotor cable routedsuch that it prevents the fan from turning, or the fan itself has failed.


1. Visually inspect the fan.2. Clear the error log.3. Switch OFF unit.4. Remove any debris from the fan.5. Reset themotor cable as required.6. Switch ON unit, test when running the belt.7. Inspect the fan connector.8. Switch OFF unit.9. Inspect and reconnect the fan connector.10. Visually inspect the drivemotor cable for clearance away from the fan.11. Visually inspect the fan for movement during operation.12. If the fan does not move:

a. TRMs built 2014 and later: Replace the fan. If the replaced the fan fails, replace theMCU3.

b. TRMs built prior to 2014: Replace theMCU.

1Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.2Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.3Motor controller, motor controller unit, or motor controller module

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15DC1 Bus Over Voltage

Applies to

Treadmills

Issue symptoms

TheDC bus (motor) voltage ismonitored.When the treadmill is used by a vigorous exerciser walkingor running at a steep incline or, when they’re pushing against the handlebars while the belt ismoving,the AC2motor becomes a generator, forcing power back into themotor controller. This excess powerwould cause the bus voltage to increase enough to damage the control module if not for the dynamicbrake resistor (DBR3), which automatically switches on to absorb the excess power. Error 15 is anindication that the Bus Voltage exceeded the bus voltage limits, either because the DB4 systemwasn’tfunctional or because the bus voltage power exceeded the DB system limit.

Troubleshooting steps – all models unless noted

1. Check the error log to determine the error frequency and repeatability.a. If a one-time event, clear the error log and return to service.b. If repeated occurrences of the error are shown, clear the error log, raise the elevation to

15%, and walk at a fast but comfortable pace, pushing slightly against the handrail. If youcan easily generate an Error 15, replace the dynamic brake resistor (DBR).

2. TRM105/Gen06 treads only – Test theMC6 by running on the tread going 7-8MPH with inclineat 0%. Does the error occur within 30 seconds?

a. If yes, replace themotor controller drive and the dynamic brake resistor (DBR).b. If no, proceed to the next steps.

3. Check dynamic brake resistor (DBR) connection.a. Switch OFF unit.b. Verify all dynamic brake resistor (DBR) connections are connected and seated properly.

4. Check dynamic brake resistance.a. Check the dynamic brake resistance. It should be 90 to 110 ohms. If greater than

150ohms, replace the dynamic brake resistor (DBR).

1Direct Current: electrical current that only flows in one direction.2Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.3treadmill dynamic break resistor.41) Dynaamic Brake or 2) Decibel (dB): In electronic systems, the decibel (dB) is a of measurementused to express the system power gain (+dB) or loss (-dB) in decibels (dB). dB (power) = 10LogPout/Pin) or, in terms of voltage, dB (power) = 20Log (Vout/Vin).5TRM800 version 1 treadmillsmfg. dates 2010 thru 2014.6Motor controller, motor controller unit, or motor controller module

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b. TRM800 only – Check the resistance between either terminal of the switch connector(smaller black) to either terminal of the resistor element connector (larger white/natural).The resistance should be greater than 1Meg of resistance. If less than 1Meg, replace thedynamic brake resistor (DBR).

5. If none of the above, replace themotor controller.

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16AC1 Input Voltage Too Low

Applies to

All AC powered cardio equipment

Issue symptoms

The condition that causes error 16must persist for 15 seconds before it is logged. Themost commoncause of this problem is external input power fluctuations due to brownouts, blackouts, or other poorpower conditions. This can also be caused bywiring that is too small of a gauge or too long to handlethe current, or if the neutrals are shared betweenmultiple outlets.


1. Find out if blackouts/brownouts have occurred recently in that area.2. Check if treadmill was running off a backup generator or backup power source.3. Monitor theminimum line voltage as follows:

a. With the TRM2 at theWelcome banner.b. With a runner at 6MPH.c. With the TRMat theWelcome banner and a runner at 6MPH on an adjoining treadmill.d. Check for fluctuations of greater than 15% between steps 3a and 3b, or fluctuations of 5V

or more when running on the adjoining TRM.4. If either of the conditions in Step 3d exist and the error has been occurring frequently and/or on

multiple units, request an evaluation of the facility distribution wiring.

1Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.2Treadmill

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17DBR1 Thermal Trip

Applies to

TRM2 800.v2

Issue symptoms

This error monitors generated current being sent to the Dynamic Brake Resistor (DBR).When thedrivemotor is energized, and external forces cause it to turn faster than it is being driven, current is cre-ated. This current is sent through theMC3 to the dynamic brake resistor (DBR).When theMC per-ceives that enough current is being delivered to the dynamic brake resistor (DBR) tomake it hot, thiserror is displayed and the treadmill comes to a stop.

Themost likely causes for this are a runner at incline with a new deck and belt, a large runner atincline, or an exerciser pushing against the handgrips while forcing the belt with their feet.


1. If deck and belt are new, this failuremodewill likely go away after a few months of use.2. Allow the dynamic brake resistor (DBR) to cool down; reset MC status andmonitor for repeat

error.

1treadmill dynamic break resistor.2Treadmill3Motor controller, motor controller unit, or motor controller module

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18Dynamic Brake Resistor (DBR1) Thermal Switch Open

Applies to

TRM800-142/18 treadmills

Issue symptoms

Aswith Error 17, current generated by the drivemotor is sent to the dynamic brake resistor (DBR). Ifenough current is sent to the dynamic brake resistor (DBR) such that it becomes excessively warm,an internal thermal switch will open, which will stop the treadmill and briefly display Error 18. This errorwill be logged and “Use Another Treadmill” will be displayed if the dynamic brake resistor (DBR)thermal switch connector is not plugged in, or if the dynamic brake resistor (DBR) has reached itsthermal upper limit.


1. Verify that the dynamic brake resistor (DBR) thermal switch is properly seated into the con-nector (it can be wedged into the connector opening without being properly seated).

2. Verify that the dynamic brake resistor (DBR) temperature. If it is stuckON, it may be hot. If stuckON and it is not hot, replace both theMotor Controller and dynamic brake resistor (DBR).

3. Unplug all connections from the dynamic brake resistor (DBR) and check resistance of the DB3thermal switch (smaller black connector). If 10Ω or greater, replace the dynamic brake resistor(DBR).

Note: Use care to only touch themultimeter probes to the connector contacts. DONOT pushthe probe tips into the contacts. Doing somay damage the contacts.

1treadmill dynamic break resistor.2TRM800 version 2 treadmillsmfg. dates 2014 and later.31) Dynaamic Brake or 2) Decibel (dB): In electronic systems, the decibel (dB) is a of measurementused to express the system power gain (+dB) or loss (-dB) in decibels (dB). dB (power) = 10LogPout/Pin) or, in terms of voltage, dB (power) = 20Log (Vout/Vin).

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19PFC1 Malfunction

Applies to


Issue symptoms

The treadmill uses Power Factor Correction (PFC) tomaximize the input power for greatest effi-ciency. This allows for fluctuations in the input voltage without affecting the performance of the tread-mill. When theMC3 detects that the PFC circuitry is not able to correctly compensate for fluctuatinginput voltage, the treadmill will stop, and Error 19 will be displayed.


1. Check for an Error 16. If an Error 16 is present, troubleshoot that first. The PFC will not be ableto compensate for input voltage that is below the lowest threshold. As such, an Error 19 will bedisplayed along with an Error 16.

2. If an accompanying Error 16 ismissing, replace theMC.

1Power Factor Correction2TRM800 version 2 treadmillsmfg. dates 2014 and later.3Motor controller, motor controller unit, or motor controller module

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20Motor Will Not Start / No Motor Movement Detected

Applies to

All AC1 drivemotor treadmills

Issue symptoms

The treadmill ismonitoring themotor movement, through current monitoring. If the lower PCA2 doesnot detect that themotor ismoving, an Error 20 will be displayed. This can be caused by a dis-connected drivemotor, or a very heavy exercisers standing on the belt while starting.


1. Verifymotor connector is connected to the drive.2. Checkmachine for stalling during operation 1MPH through 6MPH.3. Check error log for motor current during fault. If it is very low, check the connector and contacts.

If it is over 7 amps, it is likely a true stall condition.4. Check the belt rating and current draw of treadmill. Replace belt and deck, if necessary.

1Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.2Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.

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21Too Many Maximum Consecutive Power Requests

Applies to

Consumer treadmills, Commercial treadmills pre-2006

Issue symptoms

This error monitors the treadmill's power bit reading when the treadmill operates at speeds above 1MPH. Power bits indicate the relative time themotor controller drive circuit is switched on. Therefore,power bits is an indication of the amount of power the load is demanding from themotor controller.Error 21 indicates that at a speed of greater than 1MPH, themotor controller is demanding an excess-ive amount of power.

Themain cause of this error being displayed while the commercial treadmill is being used between 7and 8MPH is amissing jumper on a recently replaced LPCA1. The next most likely cause is a badlyworn running belt/deck. This error can also be caused by badly wornmotor brushes, or brushes thatare not contacting the commutator. Least likely but possible is a shorted drivemotor.


1. Because the LPCA for the commercial treadmills is the same for both the 120 VAC2 and 230VAC, there is a jumper that must be installed on the 120 VAC treadmill. If the LPCA requiresthe 120 VAC voltage doubler jumper and the jumper is not installed, the treadmill will typicallydisplay an Error 21 between 7 and 8MPH. To correct this problem, install the lower PCA3voltage doubler jumper.

WARNING: Be sure the treadmill is a 120 VAC model before installing the jumper.Installing the voltage doubler jumper on a 230 VAC model will cause the lower PCA to fail.

2. WARNING: Be sure the treadmill is a 120 VAC unit before installing the jumper. Installing thevoltage doubler jumper on a 230 VAC treadmill will cause the lower PCA to fail spectacularly.

3. A clamp-on AC4 ammeter must be used to determine the amount of AC input current beingdrawn by the treadmill under no load and loaded conditions. Remember, many running bedsare double-sided and the bed can be flipped over rather than being replaced. If the current isexcessively high at slow speed, replace the belt and deck surface with new.

4. Switch OFF the treadmill and disconnect power from the wall receptacle. Remove and inspectthemotor brushes for arcing and pitting. If present, replace both drivemotor brushes. Also,

1Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.2voltage in an alternating current circuit3Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.4Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.

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check that the brush canmove smoothly in the grooves, and that the spring is able to press thebrushes against the commutator. Adjust or replace the brushes as necessary.

5. Test the drivemotor resistance; it should not be near 0 Ω. If 0 Ω, a known good drivemotor mustbe substituted for the existing drivemotor.

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22, 23, 26Motor Pulses Incorrect

Applies to

Consumer Treadmills, Commercial Treadmills pre-2006

Issue symptoms

Dust on the speed sensor, an inoperative sensor, and a failed lower PCA1will cause these errors tobe displayed.

l Error 22 indicates that the drivemotor has been instructed to start, by either manual or programcontrol, and themonitoring system has not received any response from the speed sensing sys-tem indicating that the drivemotor has started.

l Error 23 indicates that the speed sensor signal was lost while the treadmill was in use.l Error 26monitors the speed sensor signal and verifies the speed sensor signal is appropriatefor the requested speed. If the speed sensor signal is incorrect or erratic, an Error 26 will be dis-played.


1. Carefully, vacuum out the drivemotor compartment with a static safe vacuum cleaner.2. Test the speed sensor at the board for a 0-5 Vdc transition when the sensor is activated by the

appropriate device or actuator. The 400 Series treadmills use an optical (infrared) throughspeed sensor. The through sensor beam is broken by a chopper wheel attached to themotor.Dust can accumulate in the sensor. The 200 Series treadmills use a reed switch attached to theframe, actuated by amagnet installed in the drive roller pulley. Check tomake sure themagnetis still installed in the pulley.

3. Switch OFF the treadmill and disconnect power from the wall receptacle. Remove and inspectthemotor brushes for arcing and pitting. If present, replace both drivemotor brushes. Also,check that the brush canmove smoothly in the grooves, and that the spring is able to press thebrushes against the commutator. Adjust or replace the brushes as necessary.

4. Substitute a known good lower PCA to determine if the lower PCA is bad.

1Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.

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24Reduce Speed Requested, Speed Not Reduced

Applies to

9.3X, 9.4x, 9.5x, TRM200-14, and TRM400-14 consumer treadmills

Issue symptoms

Error 24 only occurs onmachines that use a DC1 drivemotor. The error is triggered when the speedsensor detects that the speed is increasing when themotor current is decreasing. The following twopossible causes could trigger an error code 24:

Possible Causes

Cause 1: Gravity assisted back drive condition

Gravity assisted back drive is probably themost likely cause for triggering error code 24.

Back drive is the additional backward drive applied to the running belt as the exercisers foot hitsagainst the belt whichmomentarily increases the speed of the belt. However, under certain conditionsthe back drive can become excessive causing an over speed condition resulting in machine shutdown.

Excessive back drive generally only occurs when the belt and deck are in new condition and thebelt-deck coefficient of friction is low. As the belt and deckwear, the coefficient of friction increasesreducing the potential to cause an error 24 event. During a workout as the incline raises combinedwith the weight of the exerciser, the deck-belt friction can be exceeded resulting in uncontrolled beltacceleration. Themotor controller will detect the over speed condition and switch the treadmill powerOFF. However, even with the power off, the weight of the exerciser could cause the belt to continue toaccelerate. The exerciser must step off the belt to allow the running belt to slow and stop.

Cause 2: Failed LPCA2

The LPCA DC motor current switching transistor has shorted providingmaximumdrive current to themotor. This failure will cause the drivemotor and belt to start accelerating tomaximum speed. Themotor controller will detect the over speed condition and switch the treadmill power OFF.


Check for a failed LPCA

WARNING: Do not stand on the running belt during this test..

1Direct Current: electrical current that only flows in one direction.2Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.

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1. Stradle the running belt, do not stand on the running belt.2. Switch the power ON. If the belt immediately starts to accelerate the LPCA has failed, replace

the LPCA.

3. Start a manual workout. If the belt immediately starts to accelerate the LPCA has failed ,replace the LPCA.

Check for a gravity assisted back drive issue.

4. Cycle the treadmill power.5. Set the incline to theminimum level.6. Go to the Error Log and verify that error 24 has been cleared.7. Attempt to recreate an error 24 event.

a. Step onto the belt and start a slow speed workout. Raise the incline tomaximumattempt-ing to cause an error 24 event.

b. If no error 24 event, increase the speed to 5mph (or higher) attempting to cause an error24 event.

8. If there was an error 24 event, the belt-deck coefficient of friction is too low to prevent an error24 event. Continue to use themachine. As themachine use hours increase, the belt-deck coef-ficient of friction will increase resulting in reducing the frequency of error 24 events to the pointwherein the events will no longer occur.

9. If there wasNOT an error 24 event, the belt-deck coefficient of frictionmay be at amarginallevel that only causes intermittent error 24 events. Continue to use themachine. As themachine use hours increase, the belt-deck coefficient of friction will increase to the levelwherein error 24 events will no longer occur.

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25Motor Controller / LPCA1 Hardware Error

Applies to

TRM800-142/18 treadmills, EFX800-16 ellipticals

Issue symptoms

l On the TRM3, this error monitors the functionality of theMC4. If the software detects a defect intheMC, the treadmill will stop working and Error 25 will be displayed.

l On the EFX5, this error monitors the functionality of the LPCA. TheMajor processor detectsthat theMinor processor is not working correctly, is not powering up, or is otherwise out of syncwith theMajor.



Attempt to clear the error. If it is does not clear, cycle the power three times. If the error persists,replace theMC.

EFX800-16 ellipticals

1. If a continuous occurrence, it is likely a hardware issue or a corrupt program in theMinor pro-cessor. Reprogram (future feature) or replace the LPCA.

2. If the problem is intermittent, reprogram (future feature) or replace the LPCA andmonitor.

1Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.2TRM800 version 2 treadmillsmfg. dates 2014 and later.3Treadmill4Motor controller, motor controller unit, or motor controller module5Elliptical FitnessCrosstrainer

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22, 23, 26Motor Pulses Incorrect

Applies to

Consumer Treadmills, Commercial Treadmills pre-2006

Issue symptoms

Dust on the speed sensor, an inoperative sensor, and a failed lower PCA1will cause these errors tobe displayed.

l Error 22 indicates that the drivemotor has been instructed to start, by either manual or programcontrol, and themonitoring system has not received any response from the speed sensing sys-tem indicating that the drivemotor has started.

l Error 23 indicates that the speed sensor signal was lost while the treadmill was in use.l Error 26monitors the speed sensor signal and verifies the speed sensor signal is appropriatefor the requested speed. If the speed sensor signal is incorrect or erratic, an Error 26 will be dis-played.


1. Carefully, vacuum out the drivemotor compartment with a static safe vacuum cleaner.2. Test the speed sensor at the board for a 0-5 Vdc transition when the sensor is activated by the

appropriate device or actuator. The 400 Series treadmills use an optical (infrared) throughspeed sensor. The through sensor beam is broken by a chopper wheel attached to themotor.Dust can accumulate in the sensor. The 200 Series treadmills use a reed switch attached to theframe, actuated by amagnet installed in the drive roller pulley. Check tomake sure themagnetis still installed in the pulley.

3. Switch OFF the treadmill and disconnect power from the wall receptacle. Remove and inspectthemotor brushes for arcing and pitting. If present, replace both drivemotor brushes. Also,check that the brush canmove smoothly in the grooves, and that the spring is able to press thebrushes against the commutator. Adjust or replace the brushes as necessary.

4. Substitute a known good lower PCA to determine if the lower PCA is bad.


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27, 28, 29 OverviewDrive Motor Current Overloading Overview

Applies to

Treadmills

Overview

l Characteristics of treadmill overloading are:l Most frequent cause of treadmill shutting down.l Overloading ismost often caused by excess deck/belt friction but can bemadeworse by linevoltage conditions.

l Happensmore often with heavier runners, but never walkers.l In high-use clubs (10 hours or more of use per day), the decks/belts will wear out much fasterthan at other locations; sometimes inmonths rather than years.

l Often accompanied by an error code:o Error 27 (motor current too high), see error "27" on page 33.o Error 28 (average input current too high, or motor controller overheated), see error "28"on page 34.

o Error 29 (instantaneous input current too high), see "29" on page 35.

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27Motor Current Too High

Applies to

Treadmills

Overview

Error codes 27, 28, and 29 overview, see "27, 28, 29Overview" on page 32

Issue symptoms

Themotor controller monitors the amount of current being used by the drivemotor. Error 27 istriggered when themotor current increases to themaximumdrivemotor current (approximately 20amps). Themost likely cause is a worn running belt and deck. Less likely, but possible, is a faulty drivemotor with a high current demand.


1. TRM700-XX, TRM800-141 & latera. If the Belt Rating is 1 or 0, replace the belt and flip (or replace deck.

2. TRM600-XXIf the Belt Maintenance > Current (motor current) result is high (greater than 16 amps), inspectthe condition of the belt and deck for wear.

a. If dirty, clean the belt/deck and verify operation.b. If worn and in poor condition, replace the belt and deck (or flip deck).

3. TRM800-102 and earlier modelsMeasure the AC3 input current under load.

a. Clean the deck and belt.b. Connect a Clamp-on AC ammeter to the AC input hot wire.c. Thenmeasure the AC input current while doing amanual workout between 7-8mph and

0% incline.d. If the current is high (greater than 16 amps), Inspect the condition of the belt and deck. If

worn and in poor condition, replace the belt and deck (or flip deck).4. Replace the drivemotor.

1TRM800 version 2 treadmillsmfg. dates 2014 and later.2TRM800 version 1 treadmillsmfg. dates 2010 thru 2014.3Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.

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28Electronics Temperature Too High

Applies to

Treadmills

Overview


Issue symptoms (Error 28)

Treadmill motor controllersmonitor the temperature of themotor controller output switching device.Typically, thesemotor controllers use a fan to force cool the output device’s heat sink. This error indic-ates that the heat sink temperature has exceededmaximum. Themost common cause of this is aclogged cooling fan or heat sink. Lesser causes include an inoperative cooling fan, a defective lowerPCA1 or a faulty drivemotor.


1. Check the cooling fan on themotor controller to ensure the fan is not clogged with dust.2. Thoroughly clean the fan and ensure it spins freely.3. Aswith Error 27, check the belt rating or current, and replace bed and belt as needed.4. Replace the lower board.5. Replace the drivemotor.


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29Excessive AC1 Input Current

Applies to

Commercial treadmills built after 2006 and before 2014.

Overview


Issue symptoms (Error 29)

If the AC input current reaches a value over 20 amps or there is an AC current spike of 65 amps, thedrivemotor systemwill shut down and an Error 29 will be logged.

Possible causes

Symptom Possible Cause

Intermittent AC inputpower:

Facilities using supplemental AC generator power may causeerror events due to generator power switchover time.

Shared AC power circuit(wall outlets:

Each treadmill must be connected to a 20-amp, AC individualbranch circuit.

Faulty AC neutral wiring: Each treadmill power outlet circuit must use a separate neut-ral wire. Neutral wires cannot be shared bymultiple outlets.

Low AC wire voltage: Low AC input voltage drops (< 108 VAC2 for 120 VAC unitsand 200 VAC for 240 VAC units) can cause an error event.

Heavy exerciser loading:A heavy exerciser, under certain conditions (high speed run-ning on a used belt), can overload themotor drive systemcausing an error event.

Excessive deck/belt fric-tion loading:

Worn deck and running belt friction can overload themotordrive system causing an error event. A shorted LPCA3.

Treadmill faulty com-ponent issues: A shorted drivemotor causing high power demand.


Check for a one-time nonrecurring error event:

1Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.2voltage in an alternating current circuit3Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.

Page 35

l Check the error log for multiple occurrences of Error 29. Clear the error code from the LPCAmemory by cycling the power (OFF/ON).

l Check the error log for multiple occurrences.o If there aremultiple error events, continue to the next step.o If there is only one error event recorded, clear the error log and put the unit back in ser-vice.

Check for a multiple time recurring error event:

Check the error code log for multiple occurrences of the error and check the error logs of adjoiningtreadmills for occurrences of the error. If the adjoining treadmills have Error 29 occurrences, the prob-lemmay be with the facility wiring.

Check for correct input AC power and circuit wiring:

Verify the wall outlets DONOT share a common neutral wire and each wall outlet is on an individualbranch circuit. Each branch circuit should have its own separate hot (120/240 VAC), neutral, andground wire.

l If SHARED, advise customer to have their facility wiring upgraded per Precor specifications.See theOwner’sManual for specifications.

l If NOT SHARED, continue with the next step.

Check for intermittent, inconsistent, and/or low AC input line voltage:

Measure and note the average AC input line voltage at the Input Module between the brown and bluewire contacts with the treadmill circuit breaker "ON" and the speed set to 0 (idle). Thenmeasure theinstantaneous voltage drop while someone is running on the treadmill at 7.0MPH or higher for severalminutes. You can use an analog volt meter or a digital volt meter with amin/max function.

l If anymeasurement is below 108 VAC for 120 VAC units (or 200 VAC for 240 VAC units),advise the customer to have the facility wiring inspected by an electrician. For example, a 250-lbperson running at 7MPH on a good deck and belt can cause the voltage to drop to near 108VAC.

l If themeasurements are within specification, continue with the next step.

Note: Facilities that use generator power can cause an Error 29 event due to intermittentand/or inconsistent AC input voltage levels and frequency stability. Verify the AC Input poweris within Precor specification for proper operation.

Check for excessive current draw due to worn running belt and/or deck.

1. Remove the treadmill cover and place an AC clamp ammeter onto the brownwire between theAC input module (AC power cord input) and the circuit breaker (ON/OFF switch).

2. Set the treadmill speed at 7MPH and 0% incline. Run on the treadmill and observe the averageAC current reading. The average AC current reading for a new running belt and deck isbetween 8 to 12 amperes.

a. If the average current reading approaches 20 amperes or greater, the running beltshould be replaced. The running deck should be flipped (or replaced if previously flipped).

Note: Repeat the ampmeasurement test after replacing a running belt and deck. Comparethese new numbers to the worn deck/belt numbers. This will help you to establish a baselinefor you and your meter, which you can use to help troubleshoot future high current servicecalls.

Check for a faulty motor controller:

Page 36

Replace the treadmill motor controller and verify the treadmill is working properly.

l If the error recurs, continue with the next step.

Check for a faulty drive motor:

Replace the treadmill motor controller and verify the treadmill is working properly.

l If the error event was not fixed, contact Precor Customer Support for further assistance.

Page 37

30, 31, 32, 33Communication Errors

Applies to

All products:

l "TRM, EFX, RBK, UBK, and CLM" belowl "Chrono bike" on the next page

TRM, EFX, RBK, UBK, and CLM

Issue symptoms

Errors 30 through 33 all indicate the loss of communications or erratic communications between themicroprocessors in the upper PCA1 and the lower PCA. The troubleshooting procedures for all ofthem are essentially the same.

l Error 30 is defined as upper PCA is active, the lower PCA is not communicatingl Error 31 is defined as faulty data received from lower PCA (extremely rare)l Error 32 is defined as lower PCA is active, the upper PCA is not communicatingl Error 33 is defined as faulty data received from upper PCA (extremely rare)

Themain reason for a general communication error is a faulty interconnect cable; either it is not con-nected securely, or it has become damaged. Error 30 can be caused by an overloaded or shorted+3.3 VDC or +5 VDC on the lower PCA, which can be caused by an external component plugged intothe lower PCA. Error 32 is often caused right after service or installation, when the interconnect cableis unplugged from the upper PCA while the lower PCA is powered. It is also caused when the cable isplugged into the CSAFE2 port on the upper PCA.

Less likely but possible is a defective upper or lower PCA.


1. Substitute a known good interconnect cable between the upper and lower PCAs to determine ifthe interconnect cable is defective.

2. Verify the interconnect cable is securely connected into the proper connectors on both PCAs.The cable should lock; if the locking tab on the connector is broken, replace the cable.

3. Unplug all the components from the upper and lower PCAs except the data cable and the AC3power going to the lower PCA. If the unit does not show an error, plug in components one at a

1Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.2Communication Specification for Fitness Equipment protocol.3Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.

Page 38

time, cycling power on after each new component is plugged in. If a communication error isnewly displayed, the last component plugged in is the cause of the error.

4. Substitute a known good lower PCA to determine if the lower PCA is defective.5. Substitute a known good upper PCA to determine if the upper PCA is defective.

Chrono bike

Issue symptoms

Error 30 indicates communication between the console and LPCA1was interrupted for 3 seconds ormore. If the LPCA receives no input from the console for 10 seconds or more, it will shut down if theexerciser is not pedaling or there is no external charger attached.

l Zip tie around the LPCAMylar moisture barrier (Product Dates approx. 11/18/2017 to2/12/2018).

l Data COMMcommunication cable rubbing against the flywheel.l TheData COMMcable LPCA or Console connectors are not properly seated.l Pinched Data COMMcable where the cable exits the front of the handle bar mount and thenreenters the console backplate (excessive cable strain).

l If the Data COMMcable and connections are good, the LPCAmay have failed.l Console failure.


1. Check battery condition. If less than 5.4 VDC (not fully charged), try charging by pedaling thebike > 55 RPMor use a Precor power adapter. If the battery will not hold charge “dead”, replacethe battery.

Note: Alwaysmake sure the battery is charged and not dead before troubleshooting Error30 codes. A dead battery exhibits the same symptoms as an Error 30 and a frozen “Wel-come” screen but does not contribute to or cause an Error 30 event.

Note: If the console “Welcome” screen is frozen, disconnect power from LPCA, wait 3seconds, and reconnect the power.

2. Check for a zip tie securing theMylar cover around the LPCA. If installed, remove the zip tie (nolonger required) and reseat the LPCA Data COMMcable connector; see Chrono ServiceManual LPCA Board Replacement procedure.

3. Check for cable wear (especially where the cable is routed next to the flywheel). Replace thecable, if damaged; see Chrono ServiceManual Data COMMCable Replacement procedure.

4. Check for proper cable routing and excessive cable strain; see Chrono ServiceManual DataCOMMCable Replacement procedure.

a. Correct any incorrect cable routing.b. Check for excessive cable strain and create slack, if needed.c. Check that the cable is properly secured to the frame cable clamps and zip ties.d. Replace anymissing or damaged frame cable clamps or zip ties.

1Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.

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https://precor.mcoutput.com/111487/Content/SourceTopics/Replacement-LPCA.htm

https://precor.mcoutput.com/111487/Content/SourceTopics/Replacement-DataCOMMcable.htm



5. Check for a pinched cable located where the cable exits the front of the handlebar post andreenters at the console backplate. Excessive cable strain is themost likely cause of the pinchedcable. Create slack in the cable and reseat the Data COMMcable Console connector. Replacecable, if damaged.

6. Reseat the LPCA andConsole cable connections; see Chrono ServiceManual Data COMMCable Replacement procedureprocedure.

7. Verify the LPCA is not defective.8. Verify the Console is not defective.

Page 40



35Excessive AC1 Input Current Spike

Applies to


Issue symptoms

Error 35: This error monitors the instantaneous input current to the treadmill. If the input current spikesabove 65 amps, an Error 35 will be displayed. Themost likely cause of this error will be a catastrophicfailure of theMC3.


Recycle power to the treadmill. If Error 35 remains, replace theMC.

1Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.2TRM800 version 2 treadmillsmfg. dates 2014 and later.3Motor controller, motor controller unit, or motor controller module

Page 41

36Excessive AC1 Average Input Current

Applies to

TRM800-142/18 treadmills, 120VAC only

Issue symptoms

This error will occur if the Overload Slowdown (Error 38) continues to detect high current and has lim-ited the treadmill speed below 5MPH (8 KPH). Themost likely cause of this is a worn deck and belt. Itis possible that this error could be caused by a combination of a worn deck/belt and the dynamic brakeresistor (DBR3) being stuckON. Low line voltage can cause Error 36; however, this usually causes anError 16, so check for that error in the log. If Error 36 occurs when the treadmill is fairly new and thefacility has not had other treadmills plugged in previously, it is possible that the wiring to the outlet isnot of sufficient gauge to conduct the current required.

If the speed drops below 5MPH or 8 KPH and the overload condition is still present, an Error 36 willbe displayed, and the treadmill will be temporarily out of service. It will slow to a stop but will recoverfrom the error.


1. Check the belt rating (120 VAC4 only) and current draw of the treadmill. Replace the belt anddeck, if necessary.

2. Monitor theminimum line voltage as follows:a. With the TRM5 at theWelcome banner.b. With a runner at 6MPH.c. With the TRMat theWelcome banner and a runner at 6MPH on an adjoining treadmill.d. Check for fluctuations of greater than 15% between steps 2a and 2b, or fluctuations of 5V

or more when running on the adjoining TRM.3. If either of the conditions in step 2d exist and the error has been occurring frequently and/or on

multiple units, request an evaluation of the facility distribution wiring.

1Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.2TRM800 version 2 treadmillsmfg. dates 2014 and later.3treadmill dynamic break resistor.4voltage in an alternating current circuit5Treadmill

Page 42

37E-STOP Upper PCA1/Lower PCA2 Mismatch

Applies to

TRM800-143/18 treadmills, TRM2XX treadmills

Issue symptoms

Error 37may occur after an E-STOP event. If the E-STOP event is not successfully cleared in thelower PCA4 and the upper display believes the E-STOP has been cleared, an Error 37 will occur.Possible causes include pulling and resetting the E-STOP twice within the 10 second time-out period,pulling the E-STOP, switching off the treadmill, switching the treadmill back on, and then starting acourse, or pulling the E-STOP, switching off the treadmill, reset the E-STOP, switching the treadmillback on, and then starting a course. Also possible is a break in the E-STOP line, or a loose cable con-nection.

Troubleshooting steps:

1. Verify the connectors are seated properly.2. Verify Dielectric grease has been applied to both connectors.3. Run the treadmill andmove the communications cable in an attempt to duplicate the error. If it

reproduces, change out the cable.4. If this error is persistent and none of the above corrects the problem, install a new console.5. If the console does not correct the problem, change theMC5.

Recommended Additional Action:

AddDielectric grease, NYOGEL 760G0.1ml, to both connectors. Recommended for all productsregardless of age. Precor part number PPP000000013012010.

1Upper printed circuit assembly; generally refers to the console.2Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.3TRM800 version 2 treadmillsmfg. dates 2014 and later.4Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.5Motor controller, motor controller unit, or motor controller module

Page 43

38Overload Slowdown

Applies to

TRM600-XX, 120V

Lower SW 304643-101 012 and later

P30 Software Version 304716-101 002 and later

TRM700-XX, 120V

Lower SW 304235-105 003 and later


P30i Software Version 304756-101 002 and later

TRM800-XX, 120V

Lower SW 302105-104 and later



Issue symptoms

Note: Before this P10/P30 software version, when toomuch current was used by themotor, an Error36 was displayed. The treadmill would become temporarily out of service with the belt slowing to astop. Overload Slowdown has been added to help the exerciser experience.

When a heavy exerciser uses the treadmill at high speed, the treadmill needsmore power tomove therunning belt. In this case, the treadmill will attempt to draw more power from the wall outlet. Themax-imum current the treadmill can draw from the wall outlet is 20 amperes. If the treadmill drawsmorethan 20 amperes, the treadmill causes an overload. In order to prevent an overload, the treadmillslows down the running belt and limits the speed. A heavy exerciser can still use the treadmill, but thespeed will be limited.

When theMCU1 detects excessive current being used by themotor, theMCU will slow the belt downin 3%MPH/KPH increments, which will decrease the current draw from themotor until themotor is nolonger in an overload condition. An Error 38 will be logged in the Error Log but will not immediatelyscroll on the console. The speed displayed on the console will be updated to the actual speed, and thisnew speed will be limited by theMC2. The exerciser will not be able to increase the speed beyond thenew temporarily limited speed during the workout in progress, and “SPEED IS TEMPORARILYLIMITED” will be displayed when the exerciser tries to increase beyond the temporary speed set bytheMCU. Once an Error 38 is triggered, the belt must come to a complete stop to clear the error con-dition. The tread will reset to the Club SettingMaxSpeed without being power cycled. Once

1Motor controller, motor controller unit, or motor controller module2Motor controller, motor controller unit, or motor controller module

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recovered, the exerciser may start another workout. The next exerciser will not see any speed lim-itations unless an Error 38 is triggered again.

If the speed drops below 5MPH (8 KPH) and the overload condition is still present, an Error 36 will bedisplayed and the treadmill will temporarily be out of service. The treadmill will slow to a stop but willrecover from the error upon starting a new workout; see error "36" on page 42 for details.

If the speed drops below 5MPH or 8 KPH and the overload condition is still present, an Error 36 willbe displayed and the treadmill will temporarily be out of service. It will slow to a stop but will recoverfrom the error; see error "36" on page 42 for details.

Themost important factor to remember when encountering a logged Error 38 is, it ismeant for cap-turing information and is not necessarily an indication of a problem. Most of the time the code, taken byitself, is normal. Even with a new deck/belt, an Error 38 can trigger with the right combination of a highweight/high speed runner, even if this person runs for just a few seconds. Gyms that have a lot ofheavymembers running at high speedsmay need to replace beltsmore often.

Servicers should rely on the belt rating and current measurement troubleshootingmethods if an actualproblem is suspected with the treadmill.


1. Intermittent occurrences of Error 38 are not amajor concern and ismost likely caused by aheavy exerciser running at high speed.

a. Check for other error codes. Errors 16 and 36 could indicate other power problems.b. If no other errors are present, monitor for other occurrences.

2. TRM700-XX, TRM800-XX:If the occurrence of Error 38 becomesmore frequent, check the belt rating.

a. If the belt rating is 1 or 0, Inspect the condition of the belt and deck. If dirty clean the belt/-deck and verify operation. If worn, replace as necessary.

3. TRM600-XXIf the occurrence of Error 38 becomesmore frequent, check the Belt Maintenance > Current(motor current).

a. If the current is high (greater than 16 amps), Inspect the condition of the belt and deck.b. If dirty, try cleaning the belt/deck.c. If worn and in poor condition, replace the belt and deck (or flip deck).

Page 45

39LPCA1 ASL2 processor communication Error

Applies to

EFX800-16 and EFX700-17 ellipticals

Issue symptoms

There is a loss of communication between theMajor and ASL processors on the LPCA board. AnError 39 event will be logged but an error message will not be shown on the console. Depending onthe failuremode, the ASL status light may not illuminate.

Possible causes

l Damage to one of two processors on the LPCA board: either theMajor or ASL processors.l Intermittent failure caused by a shorted ASL cable or a short on the ASL board.


Case 1: Error 39 only occurs intermittently, not at every power up.

1. Replace the ASL board and ASL cable.2. If issue continues, replace the LPCA board.

Case 2: Error 39 occurs continuously and can be reproduced at every power up.

1. Disconnect the ASL cable from the ASL board.Wait for diagnostic LEDs on the LPCA to powerOFF, then power ON themachine and verify if Error 39 reoccurs.

a. If Error 39 does not reoccur, replace the ASL board.2. Disconnect the ASL cable from the LPCA board.Wait for diagnostic LEDs on the LPCA to

power OFF, then power ON themachine and verify if Error 39 reoccurs.a. If Error 39 does not reoccur, replace the ASL cable and the ASL board.b. If Error 39 does reoccur, replace the LPCA board, the ASL board, and the ASL cable.

1Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.2Active Status Light: Service andmaintenance status light.

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40No Lift Motion Detected

Applies to

All Machineswith a Lift Motor

Issue symptoms

Error indicates that the incline (lift) system on either a treadmill, EFX1, or AMT12 has been instructedto start moving and no lift motion has been detected by the lift positionmonitoring system. Most likelycauses are a blown lift fuse on the lower PCA2 or the lift motor is physically jammed and unable tomove. On the EFX and the AMT12, a fully dead battery can also cause this error. While unlikely butpossible, a faulty lift motor capacitor or winding will prevent movement.


1. Remove power from the unit and remove the lift fuse from the lower PCA. Measure the fusewith an ohmmeter. If the reading is higher than very near zero, replace the fuse.

2. TRM800-143/18 treadmills: Verify the current motor controller (IFT4 drive) software part num-ber versionmeets the followingminimum software version requirement:

Treadmill Minimum SW Version

TRM800-14/18 120V 302105-103 or later

TRM800-14/18 230V 302106-103 or later

3. Disconnect the lift motor from the lift platform (treadmill, AMT12) or ramp (EFX). If the lift tubeor lift nut is jammed against themotor housing, rotate the lift nut or lift tube away from themotorhousing. Calibrate and install the lift motor per the appropriate servicemanual procedure.

4. Treadmills built before March 2014:With a voltmeter reading AC5 volts and a one-meter leadplaced on the brown lead of the line filter:

a. Themeter should read 120 VAC6 on each of the red, white, and black lift motor wires.b. Enter Diagnostics > Machine Test > Incline Test to operate the lift.

1Elliptical FitnessCrosstrainer2Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.3TRM800 version 2 treadmillsmfg. dates 2014 and later.4Integrated Footplant Technology: IFT recognize this change in speed when your foot strikes the beltand adjust to match every stride, resulting in a smooth, fluid feel that enhances the workout exper-ience.5Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.6voltage in an alternating current circuit

Page 47

c. With ameter lead on the red wire, move the lift upward; themeter should read close to 0VAC.

d. Staying on the red wire, move the lift down; themeter should read approximately 200VAC (120V Units) or 300V (240V units).

e. If this value is significantly low, the capacitor is failing, requiring lift motor replacement.f. Move themeter lead to the blackmotor wire andmove the lift down; themeter should

read close to 0 VAC.g. Staying on the blackwire, move the lift upward; themeter should read approximately 200

VAC (120V Units) or 300V (240V units).l If this value is significantly low, the capacitor is failing, requiring lift motor replace-ment.

5. Treadmills build after March 2014:With a voltmeter reading AC volts and a one-meter leadplaced on the blue lead of the line filter, follow Steps a – f above.

6. EFX/AMT1 Only: Set themeter to DC2 volts and check the voltage of the battery while the lift isin use (under load).

a. With themeter leads on the red and black lift wires, respectively, themeter should read+12 volts whenmoving up and -12 volts whenmoving down.

b. If the voltage drops below 11 volts, check the battery according to the Troubleshootingthe Incline System in the ServiceManual.

7. If a lift motor winding is bad, the lift will not move in one or both directions, depending on theexact fault in themotor. The lift motor windingmay be checked with an ohmmeter. AC liftmotors will have a split winding (3 wires). DC lift motors will have a single winding (2 wires). OnAC motors, both windingsmust be checked. Depending on the lift motor being tested, normalwinding readings could vary anywhere between 1 and 60 ohms. Refer to the appropriate ser-vicemanual for themotor being tested.

8. Defective A/D3 potentiometer:a. Defective lift motor A/D potentiometer connections can cause amix of Error 40s (lift not

moving), Error 42s (lift out of range), and/or Error 45s (lift moving in wrong direction)event. An Error 45 is almost always an indication that the potentiometer has a badinternalmotor connection. It is possible that the error log (or event log) will fill with Error40s and 45swhen it was only a single event. Even after the cause of an Error 40 and 45event has stopped, these errors will continue to be logged until the treadmill power iscycled OFF/ON. Error 42 will clear if the lift goes backwithin range limits. If the liftremains in an out of range condition, the error log will continue to fill with Error 42swithuse. Replace the lift motor if these conditions are confirmed.

b. The lift motor calibration will remain set to factory specification unless the lift motor hasbeen replaced. If the unit is exhibiting an out-of-calibration condition (e.g., the treadmillincline level is set to 0 but the running deck is not level) and the lift motor has not beenreplaced, it ismost likely caused by defective A/D potentiometer connections. If this con-dition is confirmed, replace the lift motor.

1AdaptiveMotion Trainer2Direct Current: electrical current that only flows in one direction.3analog to digital converter

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42Lift Position Out of Range

Applies to

All machineswith a Lift Motor

Issue symptoms

The software on the lower PCA1 expects the A/D2 value from the lift potentiometer is within a certainrange, low to high. If the A/D value goes outside this range, an Error 42 will be displayed. Themostlikely cause of this error is themotor moving further than it should or jamming against the housing. Aloose connector or a damaged potentiometer inside themotor assembly will also cause this error.


1. If the lift motor has drifted too low, disconnect themotor from the lift assembly and adjust thejack screw until themotor is in range. Perform the appropriate lift motor calibration procedure. Ifthemotor continues to drift low, replace themotor.

2. Inspect the lift motor connector, verifying the pins are secure in the connector. Attach the con-nector to the lower PCA and ensure that it is locked into the header.

3. Enter Diagnostics, Machine Test, Incline or Crossramp test. Run the lift all the way extendedand back tominimum. The A/D number should climb and decrease smoothly during the test. Ifnot, replace the lift motor.

4. While in the Incline or CrossRamp® test, scroll to Glitches, and operate the lift frommin andmax incline. Glitches are anomalies recorded by the lower board during lift movement, indic-ating a possible or existing problemwith the internal potentiometer or the gear lift mechanism.Very few if any glitches should be recorded. If greater than 50 glitches are recorded during a fullmovement to either extreme, replace the lift motor.

5. Defective A/D potentiometer:a. Defective A/D potentiometer connections can cause amix of Error 40s (lift not moving),

Error 42s (lift out of range), and/or Error 45s (lift moving in wrong direction) event. AnError 45 is almost always an indication the potentiometer has a bad internalmotor con-nection. It is possible that the error log (or event log) will fill with Error 40s and 45swhen itwas actually a single event. Even after the cause of an Error 40 and 45 event hasstopped, these errors will continue to be logged until the treadmill power is cycledOFF/ON. Error 42 will clear if the lift goes backwithin range limits. If the lift remains in anout-of-range condition, the error log will continue to fill with error 42swith use. Replacethe lift motor if these conditions are confirmed.

b. The lift motor calibration will remain set to factory specification unless the lift motor hasbeen replaced. If themachine exhibits an out-of-calibration condition (e.g., the treadmillincline level is set to 0 but the running deck is not level) and the lift motor has not been

1Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.2analog to digital converter

Page 50

replaced, it ismost likely caused by defective A/D potentiometer connections. Replacethe lift motor if these conditions are confirmed.

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44Un-commanded Lift Motion

Applies to

All machineswith a lift actuator

Issue symptoms

The lift control system has detected that the lift is in motion without a lift command having been issued.This can happen in one of two ways: either the lift drive circuit has failed in a powered-on condition orthe lift position sensor (lift position potentiometer or revolution sensor) is sending an erroneous signalto the lift control circuit. This ismost often caused by a poor or intermittent connection of the lift motorpotentiometer, or the potentiometer itself is defective. Less likely but possible is a defective lowerPCA1.


1. Verify all wiring and connections associated with the lift motor assembly. Repair or replace wir-ing or connections as appropriate.

2. Operate the lift in the diagnostics while monitoring the lift position A/D2 number being displayed.If the reading is erratic andmakes large changes in readings, the lift position potentiometer isprobably bad. Replace the lift motor assembly.

3. If there is actual lift motion without amanual or program control lift command having beenissued, replace the lower PCA.

1Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.2analog to digital converter

Page 52

45Lift Moving in the Wrong Direction

Applies to

All machineswith a lift actuator

Issue symptoms

The lift control system has detected the lift is moving in the opposite direction of the issued lift com-mand. This error would happen when the lift was already inmotion (typically downward) when a liftcommand in the opposite direction (lift upward) was issued. Somemotors exhibited a very long turn-around time and the lift motor would still bemoving in the original direction (downward) while the con-trol systemwas attempting tomove the lift in the opposite direction. Less likely but possible would be adefectivemotor controller.


1. Check that theMC1 is properly controlling the lift motor.a. Treadmills built before March 2014: Measure between the line filter brownwire and the

red wire of the lift motor connector while pressing the up button in Diagnostics. There isAC2 line voltage when themotor is not being driven, and 0 Vacwhen themotor is beingdriven. Repeat the test with the black wire of the connector and the downward drive. IftheMC is not switching properly, replace theMC.

b. Treadmills build after March 2014:With a voltmeter reading AC volts, measurebetween the red wire of the lift motor connector and the blue lead of the line filter. Youshould read zero volts. Enter Diagnostics > Machine Test > Incline Test, andmove the liftupward. You shouldmeasure AC line voltage. Repeat the test with the black wire of thelift motor connector and the blue wire of the line filter. You shouldmeasure zero volts.Enter Diagnostics, and at the Incline Test, move themotor downward. You should seeline voltage.

c. EFX3/AMT4: Measure across the red and blackwires of the connector andmove the lift.You shouldmeasure 12 to 14 Vdcwhen themotor ismoved upward and -12 to -14 VDCwhen themotor ismoved downward.

2. If the Error 45 condition is persistent and the voltages from the controller are correct, replacethe lift motor.

a. Defective A/D5 potentiometer:b. Defective A/D potentiometer connections can cause amix of Error 40s (lift not moving),

Error 42s (lift out of range), and/or Error 45s (lift moving in wrong direction) event. An

1Motor controller, motor controller unit, or motor controller module2Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.3Elliptical FitnessCrosstrainer4AdaptiveMotion Trainer5analog to digital converter

Page 53

Error 45 almost always indicates the potentiometer has a bad internalmotor connection.It is possible that the error log (or event log) will fill with Error 40s and 45swhen it wasactually a single event. Even after the cause of an Error 40 and 45 event has stopped,these errors will continue to be logged until the treadmill power is cycled OFF/ON. Error42 will clear if the lift goes backwithin range limits. If the lift remains in an out-of-rangecondition, the error log will continue to fill with Error 42swith use. Replace the lift motor ifthese conditions are confirmed.

c. The lift motor calibration will remain set to factory specification unless the lift motor hasbeen replaced. If the equipment exhibits an out-of-calibration condition (e.g., the treadmillincline level is set to 0 but the running deck is not level) and the lift motor has not beenreplaced, it ismost likely caused by defective A/D potentiometer connections. Replacethe lift motor if these conditions are confirmed.

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46Low Battery Voltage

Applies to

All self-powered equipment:

l "EFX, AMT, UBK, RBK, and CLM" belowl "Chrono bikes" on the facing page

EFX, AMT, UBK, RBK, and CLM

Issue symptoms

The operating systemmonitors the battery voltage. If the battery voltage falls below 11 Vdcwhenstride height movement is initiated (AMT12) or the battery voltage falls below 10 VDC after the rampmovement has been initiated (EFX), rampmovement will be stopped and themessage Error 46 willbe displayed. Stride Height motion will not be enabled until the battery voltage exceeds the above lim-its. The battery voltagemust be raised either by battery charging or battery replacement. This is a bat-tery problem and not an incline system problem.

Possible causes:

l An open 10A slow blow fuse (AMT12 only) on the battery terminal, faulty.l Poor connection on the batteryl Lower PCA1, or a depleted battery.

Note: This error is rarely reported on self-powered bikes and climbers.


1. AMT12 only: Remove the fuse from the in-line fuse holder on the positive battery cable. Meas-ure the fuse with an ohmmeter; the fuse should read approximately 1 ohm or less. If the ohm-meter reading is high, replace the fuse.

2. Check battery cable connector for shorts or poor connections.3. Enter the CrossRamp test on the console. Connect a DC2 volt meter to the J3 connector on the

lower PCA3with the red lead on the red wire and the black lead on the blackwire. Using theSTRIDE HEIGHT control, operate the incline. The voltmeter should read approximately +12VDC when the incline is instructed tomove upward and approximately -12 VDC when theincline is instructed tomove downward. If either voltagemeasurement is significantly low,replace the battery.

1Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.2Direct Current: electrical current that only flows in one direction.3Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.

Page 55

Chrono bikes

Issue symptoms

The error is only detected while not pedaling because, when pedaling, the generator SHOULD becharging the battery and have a higher voltage. This can be a temporary condition that has been cor-rected by a rider pedaling and recharging or with the use an external charger.


1. Run the Battery Voltage service test to measure real-time voltage when not pedaling. Batteryshould be above 5.8 VDC.

2. Verify the generator voltage is adequate during this test by selecting the Generator Voltage test.Should read approximately 9 VAC1 at 60 RPM.

3. If the battery voltage increaseswhen pedaling above 55 RPM, but the battery was in a low state(5.5 – 5.7 VDC), verify the unit is routinely used. Low use can result in battery drain over timeand an external charger may be needed.

a. Batteries below 5.4 VDC that can’t be brought up or hold a charge should be replaced.4. If the battery voltage doesn't increase when pedaling above 55 RPM, the LPCA2may have a

problemwith its charging circuit and need to be replaced.

1voltage in an alternating current circuit2Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.

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47, 48High Battery Charging Voltage or Current

Applies to

Chrono1 bike

Issue symptoms

Error 47 (High current)

Battery charging current is or has been detected as too high. The error is only detected or clearedwhile pedaling because, when pedaling, the generator SHOULD be charging the battery.

Error 48 (High voltage)

Battery voltage is or has been detected as too high.

Note: The battery fuse should be checked for all battery problems. One symptom of a bad fuse, or badbattery, is the console will immediately power downwhen pedaling has stopped.

Note: If used, the external charger will give erroneous readings and needs to be unpluggedfor the below checks.


Error 47

1. Run the Battery Amp service test to measure the real-time charging currentWHILE pedalingabove 55 RPM. Should read 0.32 amps.

2. Check the battery fuse, if the battery voltage stays constant (approximately 7.0 VDC) and thegenerator and battery currents stay at zero.

3. Verify the generator voltage is adequate by selecting the Generator Voltage andGeneratorAmp tests. While pedaling at 60 RPM, the generator voltage should read approximately 9VAC2 and the generator amperage should read 0.40 amps.

4. If the battery charging current is high when pedaling, the LPCA3may have a problemwith itscharging circuit and needs to be replaced.

Error 48

1. Run the Battery Voltage service test to measure real-time voltage.When not pedaling, the bat-tery should readmaximum6.6 VDC.When pedaling above 55 RPM, themaximum voltageshould be 7.5 VDC.

1Spinner® Chrono™ Power bike.2voltage in an alternating current circuit3Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.

Page 57

2. Check the battery fuse if the battery voltage remains constant (approximately 7.0 VDC) and thegenerator and battery currents remain at or near zero.

3. Verify the generator voltage is adequate by selecting the Generator Voltage test. Generatorvoltage should read approximately 9 VAC at 60 RPM.

4. If the battery voltage doesn’t change or is always too high while pedaling above 55 RPM, theLPCAmay have a problemwith its charging circuit and needs to be replaced.

Page 58

50 Too Much Brake (Magnet) Current

Applies to

Consumer EFX1, AMT2, UBK3/RBK4, EFX16

Issue symptoms

This error is associated with eddy current EFX’s, AMT's, Climbers and Bikes. The resistance (brake)control system constantlymonitors the amount of current being demanded by the eddy current mag-net. Error 50 indicates that the amount of current being demanded by the eddy current magnet isexcessive.

Themost common cause of this error is shorted or damaged wiring between the lower PCA5 and theeddy current magnet. While possible but less likely, this can be caused when the eddy current magnetis bad or the lower PCA is bad.


1. Carefully check the eddy current wiring and connections, ensuring that the wires are not shor-ted together or shorted to the frame. Repair or replace the damaged wiring as appropriate.

2. Unplug the eddy current cable connection from the lower PCA. Pedal the unit and increase theresistance level. If the error is still displayed, replace the lower PCA. If the error is not displayed,replace the eddy current magnet.

1Elliptical FitnessCrosstrainer2AdaptiveMotion Trainer3Upright Bike4Recumbent Bike5Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.

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56Too Much Brake (Magnet) Current

Applies to

Consumer EFX200

Issue symptoms

Error 56 indicates the LPCA1 has lost communication with the DC2motor assembly, which controlsthemagnetic brake assembly. Themagnetic brake will remain at the last position successfully set bythe DC motor, so the resistance applied by the brake will not change until new instructions are suc-cessfully received and executed by the DC resistancemotor, even if themachine is set to OFF.

After reestablishing communication between the LPCA andDC motor assembly, it may be necessaryto power cycle themachine for the error to clear and for the DC motor to move themagnetic brakeassembly.


1. Check the cable and connections at the LPCA andDC motor to ensure they are properlyseated and undamaged. If the cable or connections are damaged, repair or replace the dam-aged part(s).

2. With the equipment ON, enter amanual program and pedal the EFX3. Using a DC volt meter,place the red lead on the brownwire, and the black lead on the blackwire. Themeter shouldread +4.9 VDC when resistance is increased, and -4.9 VDC when resistance is decreased. Ifthese readings are significantly out of range, recheck the wire harness. If still significantly out ofrange, replace the LPCA.

3. With the equipment ON, use a DC volt meter to measure between terminals 1 and 3 on the JK8connector that is located below the DC motor assembly. If a constant 5 VDC is present, replacethe DC motor assembly. If voltage is significantly out of range, check terminals 1 and 3 at theLPCA for 5 VDC. If voltage is in range at LPCA, replace the wire bundle. If voltages are sig-nificantly out of range, replace the LPCA.

4. Check the function of the DC motor potentiometer by reconnecting the JK8 connector locatedbelow the DC motor assembly. Place the black lead on the frame ground screw, and the redlead on the orange wire of the potentiometer. At resistance level 1, themeasurement should beapproximately 0.17 VDC. The voltage will gradually increase at each resistance level, with amaximum voltage of approximately 3.9 VDC at resistance level 16. If the readings are sig-nificantly high or low, checkwires and connectors for damage. If readings are still significantlyhigh or low, replace the LPCA.

1Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.2Direct Current: electrical current that only flows in one direction.3Elliptical FitnessCrosstrainer

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57, 58Generator Voltage Too Low or High

Applies to

Chrono1 bike

Issue symptoms

Generator voltage is or has been detected as too low (Error 57) or too high (Error 58). These errorsare only detected or cleared while pedaling above 35 RPM.May be a temporary condition due tosome rider pedalingmodalities.


1. Run theGenerator Voltage service test to verify that there is real-time voltage while pedaling.2. Note: If the external charger is connected, this voltage will always be shown as the charger’s

voltage (approximately).3. When pedaling, the voltage should vary based on the RPM. Should read approximately 9 VAC2

at 60 RPM.4. Note: RPM is read from pin 3 of the generator cable. If this phase has dropped, the consolemay

not work and will not display RPM.5. Replace the generator if the readings are off.6. If the error persists, replace the lower board.

1Spinner® Chrono™ Power bike.2voltage in an alternating current circuit

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59High Generator Current

Applies to

Chrono1 bike

Issue symptoms

Generator voltage is or has been detected as too high. The error is only detected or cleared while ped-aling above 35 RPM.May be a temporary condition due to some rider pedalingmodalities.


1. Run theGenerator Voltage and Amp service tests to verify that there is real-time voltage andcurrent while pedaling. While pedaling at 60 RPM, the generator voltage should read approx-imately 9 VAC2 and the generator amperage should read 0.40 amps.

Note: If the external charger is connected, the voltage will always be shown as the charger’svoltage (approximately)..

1. While pedaling, the voltage should vary based on the RPM (higher RPM= higher voltage). Thecurrent should go lower as the voltage/RPM increases. If it’s always the same or high, the likelycause is the LPCA3.

2. If the Generator Current varies, the systemmay have a battery problem (run Battery Servicetests).

3. If the battery checksGOOD, double-check all wiring and connections.4. If conditions persist, swap the LPCA, then the console.

1Spinner® Chrono™ Power bike.2voltage in an alternating current circuit3Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.

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60, 61Auto Stop Not Working/Present

Applies to

These errors are associated with the TRM101Treadmill. The Auto Stop feature was not on the TRM2

as a standard feature until 12/28/2010 but may have shipped with a P80 console before 12/28/2010.These errors will only be present when the Auto Stop function is Enabled in the Club Set-tings/Workout Limits. When the Auto Stop function is Disabled, the input to the console is ignored inthe software, and any failures or broken cables/connection won’t be reported.

Note: These errors will not be present if themagnet on the deck ismissing or misaligned.These errors only indicate an electrical problemwith the sensor. Failing tomove or correctlyalign/gap themagnet when the deck is flipped or moved to a new deckwhen a previouslyflipped deck is replaced will cause the Auto Stop function to engage after 90 seconds of use.

Issue symptoms

Error 60 indicates the Auto Stop feature has stopped functioning during a workout. If the error is detec-ted while a workout is in progress, the treadmill will function normally until the workout has ended. Atthe end of the workout, the error will lock out the next exerciser, displaying "Please use another tread-mill.” Themost likely cause of Error 60 is a poor or missing connection between the Auto Stop sensorand the cable connecting the sensor to the console. A damaged or faulty Auto Stop sensor may alsocause this problem. Least likely is a failure in the upper PCA3.

Error 61 indicates the Auto Stop sensor is not detected. If the error is detected the exerciser will belocked out, displaying "Please use another treadmill.” Themost likely cause of Error 61 is a broken ordisconnected cable between the sensor and the console. Less likely is amissing or faulty sensor.


1. 1. Check that the Auto Stop cable connectors are secured at the sensor and console.2. 2. Visually verify the Auto Stop hardware components are installed onto the treadmill frame.3. 3. Visually inspect the Auto Stop sensor for physical damage and correct installation. Replace if

appropriate.4. 4. Access the diagnostic system tests, and select the Auto Stop test. If the feature is enabled,

the P8X/60 test will count the number of times themagnet crosses the sensor. The LED con-soles will display "USER DETECTED" if an exerciser is detected or "NOUSER DETECTED" ifnot.

5. 5. If the test fails, disconnect the Auto Stop cable from the Auto Stop sensor and check for 5VDC between the red and blackwire. If 5 VDC is present, replace the Auto Stop sensor.

6. 6. If there is no voltage at the sensor, check for 5 VDC at the console. Disconnect the Auto Stopcable from the console andmeasure the voltage from the console.

1TRM800 version 1 treadmillsmfg. dates 2010 thru 2014.2Treadmill3Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.

Page 64

a. a. If 5 VDC is not present, replace the console.b. b. If 5 VDC is present, replace the Auto Stop cable.

Page 65

62Vertical Sensor Failure

Applies to

AMT12, all models

Issue symptoms

Error 62 will occur when the vertical stride is not detected. Themost likely cause is a faulty, broken, orpoor cable connection at the lower PCA1. A missing or reversedmagnet on the crank arm is also pos-sible, as is a defective sensor. Least likely but possible is a fault on the lower PCA.


1. Check to ensure the vertical sensor cable connector is secure on the lower PCA, and that thecable is intact, that it has not been compromised.

2. Verify themagnet is correctly installed in the crank arm. The sensor is polarity-sensitive, and anincorrectly installedmagnet will cause this error. To test, remove themagnet from the crankarm, and while in the Stride Sensor test, move themagnet back and forth past the sensor. If thepolarity is correct, you will see recorded step counts.

3. If the previous test does not show a count (regardless of polarity), replace the vertical sensorwith a known good vertical sensor. Retest.

4. Substitute the lower PCA with a known good lower PCA.


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63High RPM

Applies to

Chrono1

Issue symptoms

RPM is or has been detected as too high. The RPM ismeasured from one of the three, time-varyingAC2 phases from the generator (pin 3). May be a temporary condition due to some rider pedalingmod-alities.


1. Use the RPM service test to measure the real-time RPMwhile pedaling. Pedaling one rotationper second will read 60 RPM. The test should read approximately 9 VAC3 at 60 RPM.

2. When pedaling, the RPM should vary based on the speed being pedaled. If always high or low,the likely cause is the LPCA4 is not sensing the AC variations.

3. If it appears random or different than normal, examine theGenerator Output voltage. It may bevarying excessively if one phase is not functioning.

4. Replace the LPCA. If conditions persist, replace the generator.

1Spinner® Chrono™ Power bike.2Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.3voltage in an alternating current circuit4Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.

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65, 66LPCA1 Minor Interface Version Error

Applies to

EFX16 ellipticals, Chrono2 bikes

Issue symptoms

Error 65

Error 65 will show at startup. It indicates that the software in LPCA is not compatible with the softwarein the UPCA3. It could be caused by a wrong version of the LPCA being installed andmay be resolvedby a software update.

Workouts will not run at all if this error is active.

Error 66

Error 66 will show at startup. This indicates that the software on theMajor section of the LPCA is notcompatible with the software in the Active Status Light section.

The ASL4may not illuminate while this error is active otherwise, the systemwill operate normally.


1. Record the serial numbers and software versions from the console to the unit, and verify com-patibility.

2. CHRONObike: Update the software.3. If the error persists, replace the LPCA.

1Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.2Spinner® Chrono™ Power bike.3Upper PCA board4Active Status Light: Service andmaintenance status light.

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67GEM Module Failure

Applies to

Chrono1 bikes

Issue symptoms

TheGEMmodule affecting ANT+2 and Bluetooth3® data transport has not always responded to con-trol queries. This is considered a non-fatal condition as sporadic errors have been detected during test-ing, but Bluetooth and ANT+ (leaderboard and HR4) functionsmay be affected. If this error appearsrandomly or there are very few, this can be ignored.


1. Update the console software.2. If the Bluetooth and ANT+ operation is still non-functional and the console is otherwise usable

but only for full operationalmodes, replace the console.3. If the error log is full of errors, the console should be replaced.

1Spinner® Chrono™ Power bike.2ANT+ (pronounced ant plus) is a wireless protocol for monitoring sensor data such as a person'sheart rate or a bicycle's tire pressure3Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength UHF radio waves in the ISM band from 2.4 to 2.485GHz from fixed andmobile devices,and building personal area networks (PANs).4Heart Rate

Page 69

69Stuck Wake-up Button

Applies to

EFX16 ellipticals

Issue symptoms

Error 69 is shown after pressing QuickStart. The unit may not be able to power OFF in this situation,which can lead to battery failure or depletion. A primary symptomwould be a console that does notpower OFF, or a console that will not work when pedaling is stopped (indicating battery failure).


Note: This condition can cause the battery to fully discharge and be damaged. Disconnectthe ASL1 board from the LPCA2 as an interim preventative action if themachine is not power-ing OFF (LPCA lights stayON for longer than 90 secondswith no pedaling). This error maytake up to 2minutes to be logged.

1. Unplug the battery and check the battery voltage. If the voltage is 12V or less, it has beenseverely discharged andmay need to be recharged or replaced before troubleshooting.

2. Connect a known good battery to the LPCA battery connector without moving the pedals at alland observe the status lights on the LPCA (this is the “battery test”).

a. If any of these lights immediately switch ON when the battery is plugged in, there is aproblemwith the ASL button circuit, or the button is stuck.

3. Unplug the battery from the LPCA, remove ASL board from its plasticmount while keeping itconnected to the LPCA. Press the ASL button with your finger. A good switch has a tactile andaudible click (compare it to a known good ASL board). Replace if no tactile click is present.

4. If ASL button feelsOK, leave ASL connected to the LPCA but not installed in cover plastic andrepeat battery test.

a. If the LPCA lights do not switch ON immediately, go to Step 5.b. If the LPCA lights do switch ON immediately, go to Step 6.

5. If the LPCA lights do not switch ON immediately, check the plasticmount for damage andmis-alignment on the rear drive cover assembly. Replace the cover if needed. Reassemble andverify proper operation.

6. If the lights do switch ON immediately, there is a problemwith the ASL or the LPCA. Disconnectthe ASL cable from the LPCA and repeat the battery test.

a. If the LPCA lights do not switch ON immediately, there is a problemwith the ASL.l Check the ASL cable and replace the cable if it is bad.l If the cable is good, replace the ASL board.

1Active Status Light: Service andmaintenance status light.2Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.

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b. If the lights do switch ON, there is problemwith the LPCA. Replace the LPCA.

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70-79 OverviewFlat Belt Count Error Overview

Applies to

AMT12, all models

Issue symptoms

These errors are for the flat belt count of the AMT12. The AMT12 uses a flat belt system to providefluid movement and support to the stair arms. It is critical the flat belts are replaced at a defined stridecount. To ensure the stride count ismaintained throughout the life of the AMT12, the stride count isstored on both the LPCA1 and the UPCA2.

If either PCA3 is replaced, the stride count will be written to the new board, depending on certain cri-teria. Different conditionswill cause an error to be logged. In most cases, Errors 70 to 77 are for inform-ational purposes and will not affect how the AMT4 functions. Errors 78 and 79 indicate beltreplacement is imminent or necessary.

The PCAs compare software versions and stride counts and will generate an error indicating the con-dition. These errors can be used to determine if used or new PCAswere installed.

See Also

"70, 71, 72, 73" on page 73

"74, 75, 76, 77" on page 75

"78, 79" on page 77

1Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.2Upper PCA board3Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.4AdaptiveMotion Trainer

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70, 71, 72, 73Flat Belt Count/Software Mismatches

Applies to

AMT12, all models

Overview

Error codes 70 thru 79 overview, see "70-79Overview" on page 72.

Issues symptoms

When power is applied to the UPCA1 and LPCA2, the stride count written on each of the EEPROMswill be compared to each other and to a set of preset stride conditions. If the stride count written on theEEPROM3's do not match or meet a preset stride count condition, an error will be written to the errorlog or displayed to the exerciser at the end of the workout summary.

l Error 70: Lower PCA4 not read. The upper PCA5EERPOMcannot detect the stride count writ-ten on the lower PCA. This error is only reported to the error log. This is usually caused by alower PCA with no software installed.

l Error 71: New never installed lower PCA. The upper PCA has detected a lower PCA that doesnot have a stride count written to the lower PCA EEPROM. This is not an error and is used fortracking only. For reference, it will be reported to the error log.

l Error 72: Lower PCA version not known. A versionmismatch is detected between theEEPROMs of the upper PCA and the lower PCA.When the upper PCA reads the data fromthe lower PCAsEEPROM, and the internal version isn’t correct, the upper PCA logs Error 72.The upper PCA will then attempt to write the correct version number to the lower PCA. If thecorrect version can be successfully written to the lower PCAsEEPROM, then this error prob-ably won’t be seen again. If the upper PCA version number cannot be successfully written tothe lower PCA, then numerous errors will be logged with different odometer values. The occur-rence of this error would be rare. and if it did occur, the normal operation of the AMT12wouldnot be affected.

l Error 73: Lower PCA record is bad. A byte6-size error is detected between the EEPROMs ofthe upper PCA and the lower PCA.When the upper PCA reads the data from the lower PCAsEEPROM, and the byte size isn’t correct, the upper PCA logs Error 73. The upper PCA willthen attempt to write the correct byte size to the lower PCA. If the correct byte size can be

1Upper PCA board2Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.3Electrically erasable programmable read-onlymemory and is a type of non-volatile memory.4Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.5Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.6The byte is a unit of digital information that most commonly consists of eight bits representing a binarynumber (number of bits vary depending on application.

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written to the lower PCAsEEPROM, then this error probably won’t be seen again. If the upperPCA byte size cannot be successfully written to the lower PCA, then numerous errors will belogged with different odometer values. The occurrence of this error would be rare, and if it didoccur, the normal operation of the AMT12would not be affected.


l Error 70: Replace the LPCA.l Error 71: None, this is for informational purposes only.l Errors 72 and 73: These errors will not affect the operation of the AMT12 but are recorded inthe error log. Replacing the LPCA will only resolve repeated recordings of the error.

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74, 75, 76, 77Flat Belt Count, Mismatched console

Applies to

AMT12, all models

Overview


Issues symptoms

TheUPCA1 and LPCA2 compare the stride count record written on each EEPROM3.

l Error 74: The LPCA stride count is less than the UPCA’s, and the UPCA is less than 30,000strides.

l Error 75: The LPCA stride count is less than the UPCA’s, and the LPCA is less than 30,000strides.

l Error 76: The LPCA stride count is greater than the UPCA’s, and the UPCA is greater than30,000 strides.

l Error 77: The UPCA stride count is greater than the LPCA’s, and the LPCA is greater than30,000 strides.

The events will be recorded to the error log during the workout summary and the LPCA stride countrecord is written to the UPCA EEPROM.

Themost likely cause of these errors is the UPCA or LPCA were replaced during troubleshootingusing a board from an adjoining unit. See Note below.


In general, no action is needed. These are recorded for informational purposes.

Troubleshooting note:

If you are swapping an upper or lower PCA4while troubleshooting, note the process below to preventthe stride count odometer from being prematurely overwritten.

l When you stop pedaling, the AMT5will pause for 20 seconds, and then give a 10-secondworkout summary (which is when the records are written between the PCAs). After a PCA is

1Upper PCA board2Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.3Electrically erasable programmable read-onlymemory and is a type of non-volatile memory.4Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.5AdaptiveMotion Trainer

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replaced and the AMT is tested, you need to unplug1 the data cable from either PCA withinthe 20-second pause period to prevent the summary from happening. If the AMT is pre-vented from going into the summary, the stride count will not be overwritten.

l When testing is complete, make sure that each PCA board is replaced in the original unit fromwhich it was removed. The only exception is if you find a bad board that needs replacing.

l All these functionswill place a code in the error log. Clear them before returning the unit to use.

1Disconnect a device power cord plug or cable connector from the power receptacle or outlet.

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78, 79Flat Belt Replacement

Applies to

AMT12, all models

Overview


Issue symptom

The AMT12 flat belt system has a predetermined life span of 100,000,000 (100M) strides. The AMT12maintains a stride count independent from the overall machine stride count. When this stride countreaches 90,000,000 (90M) strides, Error 78 is recorded in the error log and displays amessage, alert-ing that the flat belts need to be replaced soon. Normal workout operation is still available. When thestride count reaches 100M strides, Error 79 is recorded in the error log and displays amessage, indic-ating that the flat beltsmust be replaced. If this occurs during a workout, the exerciser will be able tocontinue the workout until ended. No further workouts will be allowed until the stride count is reset inthe console after the belts have been replaced.


1. Replace all four flat belts (see ServiceManual for procedure).2. Reset the flat belt stride odometer.

Page 77

80, 81, 82, 83Motion Controller Switch Errors

Applies to

P30Console, all models

Issue symptoms

Themain symptoms for these errors are lack of control of the ramp incline and/or speed (TRM1) or res-istance (EFX2, AMT3). These errors will occur whenever there is either poor or missing hardwarecommunication between themotion controller and sensors. Themotion controller to sensor interfacecable uses an 8-pin connector. Pins 1-3 are incline controls; pins 6-8 are either drive (speed or res-istance) controls.

l Error 80: Incline (or CrossRamp) will stop at current incline. Error 80 is displayed when there isamissing incline signal on pins 1 or 2. Restart is not needed to clear the error; self-recovery ispossible when the control is returned to the center position.

l Error 81: Incline (or CrossRamp) will stop at current incline. Error 81 is displayed when there isamissing incline signal on pin 3. Restart is not needed to clear the error; self-recovery is pos-sible when the control is returned to the center position.

l Error 82: Speed will decrease at 0.1MPH for each key press until the belt stops. Error 82 is dis-played when there is amissing drive signal on pins 6 or 7. Restart is not needed to clear theerror; self-recovery is possible when the control is returned to the center position.

l Error 83: Speed will remain at current speed. Error 83 is displayed when there is amissingdrive signal on pin 8. Restart is not needed to clear the error; self-recovery is possible when thecontrol is returned to the center position.

Themost likely causes for these errors are a loose or disconnected connector to the UPCA4, dam-aged cables, or a faultymachine control.


1. Check the error log for multiple occurrences of the error with the same odometer reading. Clearthe error log, and cycle power to themachine.

2. Open the console and check the connectors. Ensure that they are securely connected to boththe upper PCA5 and to themachine control.

3. Check the cable for visual damage; use an ohmmeter to verify continuity on each line. Replaceboth the cable andmachine control if a fault is found.

1Treadmill2Elliptical FitnessCrosstrainer3AdaptiveMotion Trainer4Upper PCA board5Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.

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4. Inspect themachine control for corrosion or damage and replace both themachine control andcable, if any damage is found.

5. Review the software version of the P30. If the exerciser or facility owner states the issue isrelated to themachine controls not working as designed, the P30 softwaremay need to beupdated in addition to the replacement of themachine control and cable assemblies. Currentsoftware versions are available on the Precor Connection website.

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84Strain Gauge Response Too High

Applies to

Chrono1 bike

Issue symptoms

Strain gauge response is, or has been, detected as too high. This error is only detected or clearedwhile NOT pedaling. The LPCA2 software has an Auto-Cal operation that zeros the torque when therider stops pedaling. Auto-Cal operation should show some change when pedaling stops, as follows:

l Seconds after pedaling stops, and with NOpedaling, the torque should reset to 0; this is normal.l If the rider stops pedaling with the resistance knob at a high resistance AND the torque readinghas a large difference, this will cause power readings to be wrong for the rider.

l This issue can be resolved if the rider reduces the resistance and stops pedaling, which will zerothe unit properly.

This can be a temporary condition due to some rider pedaling/resistance settings and residual torquedifferencemodalities.


1. Run the Torque3Service test to measure the real-time torque response.2. While pedaling, the response should vary based on the position of the resistance knob and, to a

small amount, vary with the pedaling rate. If the torque remains the same, the strain gauge isbroken or, the cable or cable connection is defective.

a. Check all connections. If the issue persists, replace the caliper.3. If the value varies but is largely at minimal resistance, the caliper gaugemay have been

deformed bymechanical stress.a. Check all connections. If the issue persists, replace the caliper.

1Spinner® Chrono™ Power bike.2Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.3Torque is ameasure of the force that can cause an object to rotate about an axis. Bolt/nut example: 5NM torque is equivalent to 5 newton's of force applied onemeter from the center of the bolt, 6 ft-lb isequivalent to 6 lbs of force applied 1 foot away from the center of the bolt.

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85No Dynamic Brake Resistor Detected

Applies to

TRM800.v2 treadmills

Issue symptoms

TheDynamic Brake Resistor is designed to absorb the excessive current produced by the drivemotorrunning faster than it is being driven.When themotor control starts, it checks that the resistor isplugged in. If it does not detect the DBR1, an Error 85 will be displayed. It will only be displayed brieflywhen power is applied to theMC2. Themost probable cause for this is the DBR not being plugged in,or it is open due to overheating or a broken cable.


1. Visually determine if the DBR is connected to theMC. Ensure the cable connector is securelyfastened and locked to theMC connector.

2. Measure the DBR with amultimeter. It should read 100 ohms. If this is significantly higher than100 ohms, replace the resistor.

1treadmill dynamic break resistor.2Motor controller, motor controller unit, or motor controller module

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86, 87Console Mismatch

Applies to

All Cardio with Pxx Series consoles

Issue symptoms

The Pxx Series consoles have specific software versions for communicating with specific basemodelLPCAs1. When an incorrect console is installed (the console software cannot communicate with thebase LPCA2) a softwaremismatch will be detected which will trigger an error code.

Note: TheMCU3 for the TRM4 600, 700, and 800 aremodel-specific, so Errors 86 and 87will be triggered if the incorrect version of the TRMMC5 is installed.

Note: The P31 console will only correctly operate with AMTs6withmfg. dates 3 June 2019and later or that have LPCA version 305476-103 or later installed.


1. Check to ensure the proper LPCA/MCU is installed. Replace if not.2. Update the console software to the correct/current version.

1Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.2Lower printed circuit board assembly; generally this refers to the lower board. On treadmills, this isthemotor controller unit (MCU), and on self-powered units, it is themain board in the lower section.3Motor controller, motor controller unit, or motor controller module4Treadmill5Motor controller, motor controller unit, or motor controller module6AdaptiveMotion Trainer

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88Drive Motor Temperature Too High

Applies to

TRM800-141/18 (TRM800.v2) treadmills

Issue symptoms

TheMC2monitors both the current delivered to the drivemotor and a thermal switch connected fromthemotor to theMC.When the software perceives that excessive current has been required, an Error88 will be displayed. Cycling power will allow the treadmill to restart. Additionally, a thermal switch isembedded into the drivemotor housing.When themotor exceeds a certain temperature, an Error 88is displayed, and the treadmill stops until the switch closeswhen the temperature drops.


Disconnect the thermal switch from theMC, and using an ohmmeter, measure across the switch. Ifthemotor is hot and the switch is open, allow themotor to cool and repeat the test. If themotor is nothot and the switch is open, replace themotor.

1TRM800 version 2 treadmillsmfg. dates 2014 and later.2Motor controller, motor controller unit, or motor controller module

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89Line Voltage Too High

Applies to

TRM800-141/18 (TRM800.v2), TRM700-16/18

Issue symptoms

Error 89 will trigger when theMCU2 detects an input voltage greater than 160V for more than 10seconds. This error prevents 120V units fromworking if plugged into a 240V power source. The con-sole will display the “Please use another treadmill” banner and the treadmill will be unusable.


1. Check the unit to make sure the correct unit is being used for the applicable power source.2. Clear the error and cycle power on themachine.

1TRM800 version 2 treadmillsmfg. dates 2014 and later.2Motor controller, motor controller unit, or motor controller module

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90, 91, 92, 93, 94, 95OEM Engineering Information

Applies to

TRM800-141/18 with P30 console

Issue symptoms

TheMachine Control has not sensed the controlsmoving correctly. Errors 90 and 91may be presentwhen an Error 80 or 82 occurs.


1. Test the function of themachine control using the Keyboard Test in the Hardware Validationmenu.

2. Run through the troubleshooting steps for Errors 80-83, see "80, 81, 82, 83" on page 78.

If these errors are present, record all the information for this error and send this information to PrecorCustomer Support.

1TRM800 version 2 treadmillsmfg. dates 2014 and later.

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96, 97, 98USB1 Stick Reading Errors

Applies to

Chrono2 bike

Issue symptoms

The Service Test has tried to access the USBmemory stick and has detected one of the following:

l "Error 96" below: USB stick is not detected.l "Error 97" below: Not a valid file or file structure.l "Error 98" on the next page: Not a valid setup.ini or program.ini data file.

Note: These errors will only show in the text string of the display. Theywill not be logged.


Error 961. Verify the size and directory format of the USB stick; limitation is 32GB and “FAT32” structure.2. Try another USB stick (or insert the current one into a separate console). If the USB stick is

good, the console should be replaced.

Error 971. Verify the size and directory format of the USB stick; limitation is 32GB and “FAT32” structure.2. Review the file structure and components within the directory on the stick. The file structure

should be:

Note: Missing files or sub-directories are themost common reason for E9

1Short for Universal Serial Bus, is an industry standard developed in themid-1990s that defines thecables, connectors and communications protocols used in a bus for connection, communication, andpower supply between computers and electronic devices.2Spinner® Chrono™ Power bike.

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Error 981. Verify the size and directory format of the USB stick; limitation is 32GB and “FAT32” structure.2. Review the program.ini or setup.ini non-commented lines. Theremay be a problem in the text

files.3. Edit or replace with unedited files.

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E2Lift Error

Applies to

9.23, 9.27, TR211, TRM200-14 treadmills

Issue symptoms

This error is shown in the console TIME window indicating an incline problem. This error will occur ifthe incline is unable tomove or if the incline position potentiometer is not functioning.When the E2error occurs, all drivemotor and lift motor motion stops and the display is blank except for the error dis-play.


Refer to the specific sections for error "40" on page 47 and "42" on page 50.

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E4Incomplete Initialization

Applies to

9.23, 9.27, TRM211, and TRM200-14 treadmills

Description

This error is shown in the console TIME window indicating an incomplete upper PCA1 to lower PCAinitialization has occurred.When the E4 error occurs, all drivemotor and lift motor motion stops andthe display is blank except for the error display.


Run the initialization program per procedures of the TRM2 9.23, 9.27 ServiceManual.

1Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.2Treadmill

Page 89

ERREEPROM1 Problem

Applies to


Issue symptoms

This error is shown in the console TIME window when the EEPROM is damaged or unable to retrieveor store data. When the Err error occurs, all drivemotor and lift motor motion stops and the display isblank except for the error display. When this error occurs consistently, it indicates an upper PCA2 prob-lem. Failures causing these error messages to be displayed are rare.


If the error message is consistently displayed when the unit is powered up, the upper PCA should bereplaced. It is possible to see one of thesemessages displayed intermittently due to external causes. Ifthe input AC3 significantly dips during the power-up test sequence, the test could fail, resulting in oneof thesemessages being displayed. Treadmills operating on non-independent AC circuitsmay seethesemessages displayed on an intermittent basis.

1Electrically erasable programmable read-onlymemory and is a type of non-volatile memory.2Printed circuit assembly, generally referred to as either an upper PCA or lower PCA.3Alternating Current: electric current which periodically reverses direction between positive and neg-ative polarity.

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LSSpeed Sensor Signal Missing

Applies to


Issue symptoms

This error is shown in the console TIME window when the drivemotor speed signal is not receivedfrom the speed sensor for eight (8) consecutive seconds.When the LS error occurs, the drivemotorand lift motor motion stops and the display is blank except for the error display. The treadmill uses areed switch and twomagnets in the drive roller pulley as a speed sensing system.

Themost likely causes for this are the speed sensor wiring having an intermittent or open connection,an intermittent or defective reed switch, or bad drivemotor brushes. Least likely but possible is a badupper PCA1.


1. Check the reed switch wiring and connection to the lower PCA.2. Check the reed switch using an ohmmeter while rotating the drive pulley. The reed switch will

close when amagnet passes in front of it.3. Replace both drivemotor brushes.4. Substitute a known good upper PCA to determine if the upper PCA is bad.


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Edition InformationEdition

Title: Error Code Troubleshooting Guide P/N: 20039-209 Publish Date: May 2019

Online Manual

There is also an online version available, (must be connected to the internet): click Online Ser-viceManual.

Copyright

Copyright 2019 Precor Incorporated

No part of thismanualmay be reproduced in any form or by anymeans (including electronic storageand retrieval or translation into a foreign language) without prior agreement and written consent fromPrecor Incorporated as governed byUnited States and international copyright laws.

Precor Incorporated20031 142nd Ave. NEP.O.Box 7202Woodinville, WA. 98072-4002Ph: 1-800-347-4404

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Notices and SafetyTrademarks

Precor, AMT1, EFX2, and Preva are registered trademarks of Precor Incorporated. Other names inthis document may be the trademarks or registered trademarks of their respective owners.

The Spinner Family of bikes—Spin®, Spinner®, Spinning®, Spin Fitness®, and the Spinning logo® areregistered trademarks owned byMadDogg Athletics, Inc., a California corporation.

SPD® is a registered trademark of Shimano American Corporation.

Intellectual Property

All rights, title, and interests in and to the software of the Preva Business Suite, the accompanying prin-tedmaterials, any copies of such software, and all data collected via the Preva Business Suite, areexclusively owned by Precor or its suppliers, as the casemay be.

Precor is widely recognized for its innovative, award-winning designs of exercise equipment. Precoraggressively seeksU.S. and foreign patents for both themechanical construction and the visualaspects of its product design. Any party contemplating the use of Precor product designs is herebyforewarned that Precor considers the unauthorized appropriation of its proprietary rights to be a veryseriousmatter. Precor will vigorously pursue all unauthorized appropriation of its proprietary rights.

Warranty

Thematerial contained in this document is provided "as is," and is subject to being changed, withoutnotice, in future editions. Further, to themaximumextent permitted by applicable law, Precor dis-claims all warranties, either expressed or implied, with regard to thismanual and any information con-tained herein, including but not limited to the implied warranties of merchantability and fitness for aparticular purpose. Precor shall not be liable for errors or for incidental or consequential damages inconnection with the furnishing, use, or performance of this document or of any information containedherein. Should Precor and the user have a separate written agreement with warranty terms coveringthematerial in this document that conflict with these terms, the warranty terms in the separate agree-ment shall control.

Safety Notices

Warning and Caution notices indicate an activity that could be dangerous and cause personal injuryand/or equipment damage if not adhered to. Always follow Warning and Caution instructions.

1AdaptiveMotion Trainer2Elliptical FitnessCrosstrainer

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WarningAWARNING notice denotes a hazard. It calls attention to an operating procedure, practice,or the like that, if not correctly performed or adhered to, could result in personal injury ordeath. Do not proceed beyond aWARNINGnotice until the indicated conditions are fullyunderstood.

CautionA CAUTION notice denotes a hazard. It calls attention to an operating procedure, practice, orthe like that, if not correctly performed or adhered to, could result in damage to the product orloss of important data. Do not proceed beyond a CAUTION notice until the indicated con-ditions are fully understood.

Service Safety Guidlines

WARNING: Only Precor certified servicers and technicians are permitted to service Precorproducts. Personal injury can result from electrical shock and/or mechanical moving parts.

Review the following safety information prior to servicing the equipment. This safety information willhelp to prevent personal injury or damage to the equipment while servicing the equipment.

l Read and follow allWarning notices to protect yourself from personal injury.l Read and follow allCaution notices to prevent damage to the equipment.l Read the owner’smanual and follow all operating instructions.l Operate the equipment on a solid, level surface.l Visually check the equipment before beginning service or maintenance operations. If it is notcompletely assembled or is damaged in anyway, do not attempt to operate the equipment.

l Never place liquids on any part of the equipment while performing service.l To prevent electrical shock, keep all electrical components away fromwater and other liquids.l Do not use accessory attachments that are not recommended by themanufacturer. Non-OEMaccessories can cause injuries.

l Do not stand or climb on the handlebars, display enclosure or cover.l On a self-powered unit, it will either be necessary to either equip the unit with the optionalexternal power supply or have an assistant pedal on the unit while voltagemeasurements arebeing taken. Because of the danger of working on the unit while it is in motion using the optionalexternal power supply is strongly recommended.

l OnATMunits when the stairarms are inmotion; the generator will operate and produce poten-tially hazardous voltages even when the battery is disconnected.

l OnAMT units with Cardio Theater PVS1 units will have external power supply and coaxialcable routed through the bottom of the unit to the top of the display console. Cordmanagementmust bemaintained

l OnATMunits, a pinching hazard exists when the unit is operated. It is possible to seriouslypinch a finger. The AMT can bemechanically locked by inserting a screwdriver through theprimary sheave and frame.

1Personal Viewing System display.

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l On treadmills, removing the hood exposes high voltage components and potentially dangerousmachinery. Exercise extreme caution when you performmaintenance procedureswith thehood removed.

When servicing the equipment:

l During service operations you will be very close tomovingmachinery and voltage bearing com-ponents:

o Remove jewelry (especially from ears and neck).o Tie up long hair.o Remove neck ties.o Do not wear loose clothing.

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ErrorCode TroubleshootingGuide · 2020. 10. 13. · About...

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