PowerPoint Presentation

Marcone 2014 MSA TrainingGE Mission 1 Front Load Dryer

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GE Front Load DryerMODELS GFDS250EF/GF GFDS255EF/GF GFDS260EF/GF GFDS265EF/GF GFDS360EF/GF GFDS365EF/GF GHDS370EF/GF GHDS375EF/GF GFDR480EF/GF GFDR485EF/GF

Note:0 models are White. 5 models are either Metallic Carbon or Ruby Red. (GFDR480GF)2

Warranty3

NomenclatureGFDR480GFWW

G - Brand: G = GE P = Profile

F - Configuration: F = Frontload D - Product: D = Dryer

R - Key Feature: S = Standard R = Riser

480 - Options Package

E - Heater Type: E = Electric G = Gas

F - Model Year Designator

WW - Color: WW = White MC = Metallic Carbon RR = Ruby Red 4Features (480 Series) GFDR480EF/GF GFDR485EF/GF 8.0 DOE Chrome Door Chrome Knob with Rubber Grip Chrome UI Trim Steam 12 Cycles 5 Dryness Levels eDry eMonitor Detangle Interior LED Light Dryer Rack Integrated Riser DSM (RJ45) Capable

Available in White, Metallic Carbon & Ruby Red

Weight 183 lbs. Height: 47" Width: 28" Depth: 34-3/8"5Model / Serial Plate LocationThe model / serial number plate is located behind the door, just under the drum opening.6

Mini-Manual (Tech Sheet) Location

The mini-manual is taped to the backside of the control panel along with the UI/IMC board.

Control escutcheon has to be removed to access.7

RJ45 Connector LocationThe RJ45 connector is located on the top rear of the machine.

In some areas, this will allow consumers to connect to their local energy grid via DSM (demand side management).

DSM is used to better control energy usage throughout the home.8Rear view of dryer

Feature Definitions - SteamSteam - A mist of room temperature water sprayed into the drum.Steam is used on the "Steam Dewrinkle" and the "Steam Refresh" cycles.9

Steam Dewrinkle - Used for loads left in the dryer for an extended period of time.

Steam Refresh - For slightly wrinkled dry garments. Significantly reduces wrinkles on up to 5 garments. After the Steam Refresh Cycle, the unit will beep and display 0:00. If the unit is not turned off or if the door is not opened, the dryer will continue to tumble for 30 minutes. At the end of 30 minutes, it will display 0:00 and the cycle will be complete.Feature Definitions - eDryeDry - Reduces the total energy consumption by adjusting certain heat settings.eDry is selected by pressing the eDry Button.

Machine settings when eDry is selected:Dry Temp = LowExtended Tumble = eDry is DisabledSanitize = eDry is Disabled

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Feature Definitions - eMonitoreMonitor - Visual display of the energy use of the appliance. eMonitor Ranges:Good (1 light) to Best (5 lights).

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Feature Definitions Detangle(1)12Detangle - Reduces tangling, dries more evenly, and improve drying times by periodically reversing drum rotation direction.

Detangle is selected by pressing the Detangle button.

Feature Definitions Detangle(2)13When the Detangle feature is selected, the control will execute a reversing tumble profile.

When the Detangle feature is not selected, the control will execute a Non-reversing tumble profile.

When the Detangle Option is changed during the Run State, the control will stop the drum, and start the new Tumble Profile.

There is a delay of six seconds before reversing the Drum Motor to allow for an empty/nearly empty drum to stop to ensure the drum motor has stopped to ensure motor reversal.

NOTE: No heat will be applied during the clockwise tumbling steps of the tumble profile.

NOTE: The Mist Valve will not be energized during the clockwise tumbling steps of the tumble profile.

Feature Definitions Dryness levels14Dryness Level - Provides an option for consumers to end the dry cycle when the clothes reach a certain moisture content.

The dryness level is set by pressing the Level button.

Available Dryness Levels: Damp Less Dry Dry More Dry Extra Dry

Feature Definitions - Integrated RiserIntegrated Riser - Adds an additional 7" of height to the unit.

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Disassembly - Control Panel Removal(1) Remove the cycle selector knob by pulling it forward.16

Disassembly - Control Panel Removal(2) Remove the cycle selector knob retainer by pulling it forward.17

Disassembly - Control Panel Removal(3) Remove the T20 Torx Head screw securing control panel to frame.18

Disassembly - Control Panel Removal(4) Lift the control panel straight up to disengage the mounting tabs.19

Disassembly - Control Panel Removal(5) Multiple cables / plugs connect the UI/IMC board to the electromechanical components of the dryer.

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Disassembly Top Panel RemovalRemove the control panel.Remove the 4 top panel screws.Pull the top panel forward to disengage the mounting tabs, and then lift up.

Note: It may be necessary to move the top panel back-ward and forward while lifting to cause the top panel to dis-engage from the mounting tabs.

21Disassembly Door RemovalRemove the 2-T-20 Torx door hinge screws. The door will remain in place after the 2 screws have been removed.Lift up slightly on door assembly and pull forward.22

Disassembly Riser Front Panel RemovalTilt the dryer back and install prop blocks.Remove the 3 Riser front panel screws.Slide the panel to the left and pull forward.

NOTE: The dryer does not have to be removed in order to remove the front panel. Prop blocks removed for better viewing

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Disassembly - Front Panel Removal(1)24Remove the control panel.To reduce weight, remove the door assembly.Remove the 4 front panel screws located at the top of the front panel.

Disassembly - Front Panel Removal(2)25Lean the dryer back and install prop blocks.Remove the 3 riser front panel screws.Slide the panel slightly to the left and pull it forward.Prop blocks removed for better viewing

Disassembly - Front Panel Removal(3)26 Next, remove 3 Phillips head screws securing front panel to drum support.

Disassembly - Front Panel Removal(4)27 Lift panel approximately two inches to release from the two pin supports on either side and the three tabs at the bottom. Do not remove at this point. See next step

Disassembly - Front Panel Removal(5)28Tilt panel forward an inch or two and remove the two wires from the door switch.

Disassembly - Front Panel Removal(6)29Remove front panel and set aside.

Disassembly Trap Duct Assembly(1)30To remove trap duct:Remove three hex head screws.Grasp duct assembly and pull straight down & out.

Disassembly Trap Duct Assembly(2)31Removal of trap duct assembly provides ample room to access belt, pulleys & some other components through the front of the machine.

Disassembly Blower Wheel32

Removal: After removing trap duct assembly:1.Remove two hex head screws and lift blower wheel cover from slot at bottom of housing.2. While holding motor shaft with channel locks, remove 9/16 nut holdingblower wheel to shaft. Nut is reverse threaded.Disassembly Drum Support & Drum(1)33Removal:After removing trap duct assembly, remove 4- hex heads securing control assembly bracket.

Flip back control bracket so a to clear drum support.

Remove 4 additional hex heads (one from each arm of support).

Support will stay in place with screws removed because of a tab from each arm into side panel.

Disassembly Drum Support & Drum(2)34Removal:Lift drum support upwards slightly to release tab at each arm.

Reach behind drum support after releasing from side panel. With needle nose, squeeze back side of the four wire clamps (two on either side of drum support.

Remove drum support from machine and set aside.

Disassembly Drum Support & Drum(3)35Removal:Remove belt from pulleys if necessary.

Using belt as a handle lift drum and remove from machine.

Disassembly Rear Panel(1)36To removal rear panel:Remove control panel & dryer top panel.Remove hex head screws around the perimeter of rear panel.Remove hex head securing water valve to rear panel.Lift off and remove panel from dryer.

Disassembly Rear Panel(2)37Removal of rear panel (if dryer location permits) allows for additional room to access belt, pulleys & other components.Provides for access to components that are only accessible from rear of machine, i.e. inlet thermistor.

Inlet ThermistorComponents UI/IMC Board(1)The UI/IMC Board has 3 functions:1) Allows for cycle and cycle modifier selection. 2) Provides information to the user. 3) Contains software instructions for general machine operation.38Remove six 5/16 screws from control to separate it from the control panel housing.

Components UI/IMC Board(2)39The control itself, the control panel housing or escutcheon and what they call button trees, all come as separate components. ControlControl HousingButton TreeButton TreeComponents UI/IMC Board(3)Board Layout:40 J8 J1 J6 J5 J14 J2 J3 J9 J7 J4

Components Motor (120vac Reversible Motor)To Remove Motor:Using a flat blade screwdriver lift up and release spring clips at front and back of motor.Lift tabs at top & bottom of power plug and pull out to release.Lift motor from machine. 41

Power PlugComponents Idler PulleysDryer uses a dual pulley system with a spring between the two Idler arms to provide for belt tension. 42

(Front View)Components - BeltStandard dryer belt (WE12X10020) fed around drum, motor pulley and two idler pulleys.43

Rear ViewRear ViewComponents - Belt SwitchBelt switch is mounted to the back side of the rear motor mounting plate.With belt intact, switch is closed providing a path for Neutral to the motor circuit.If belt breaks, idler arm falls and a foot on the arm depresses switch arm opening the Neutral circuit to the motor.44

(Rear View)Components - Gas ValveStandard three coil gas valve mounted to the burner bracket with three hex head screws.At this point, GE parts breakdown shows no replacements for the coils. The complete gas valve is one component. (WE14X10109).45

Components - Gas Valve - Operation46

LL1N

Components - Gas Valve LP Conversion47

The dryer gas valve has capability of being converted to LP use and then back to natural gas. All dryers are shipped from the factory set up for natural gas.

Components Ignitor(1)The glo-bar ignitor is made of a ceramic material and therefore is extremely fragile. Care must be exercised when replacing.

Removal / Replacement:

1. Begin by removing three hexhead screws securing top of burnerassembly.

2. Remove burner top.

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Components Ignitor(2)Removal / Replacement:

3. With a stubby driver or socket, remove hex head securingignitor to burner bracket.

4. Disconnect power plug to ignitor.49

Components Ignitor(3)Removal / Replacement:

5. After removing mounting screw,lift ignitor mounting bracket clipfrom burner bracket.

6. Remove ignitor from dryer burnerassembly.50

Components - Flame DetectorThe flame detector is secured to the burner tube with a tab and a hex head screw.

The flame detector should normally be closed. (0 )51

Components Heater Assembly52The heater and enclosure (minus the thermostats) comes as an assembly. (WE11X10025)

Heater utilizes 240 volts. Each heater is @ 20 and draws 12 amps.

Components - Steam ValveThe steam valve is a 120vac water valve that is attached to the rear panel in the upper left hand corner.The steam valve can be checked using Service Mode Test t11.53

Components Steam Nozzle(1)54

The steam nozzle is located inside the rear drum support. The steam nozzle consists of a brass orifice and a fine filter screen. If the orifice should become plugged or restricted, it should not be cleaned.Replace a plugged or restricted steam nozzle.Components Steam Nozzle(2)55

The steam nozzle can be replaced without disassembly of the dryer. Replacement can be performed inside the drum area. A 7/16 or 11-mm nut driver can be used to unscrew the nozzle from the base.

Note: The replacement steam nozzle will have thread lock pre-applied to the screw threads.Nozzle with Thread Lock AppliedRear view of nozzle baseComponents Door SwitchThe door switch opens and closes the neutral line to the motor circuit and informs the control whether the door is open or closed.The door switch can be checked using Service Mode Test t10.

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Components Drum LightOn models so equipped, there is a 3vdc LED drum lamp that snaps into an opening in the top front of the drum support panel.The LED receives its voltage directly from the control board.Other models that use an incandescent bulb, it is the 120vac variety and is powered off of the door switch.57

Components - Sensing Rods(1)58

Sensor Rods are located on the back side of the drum support just belowthe lint trap.Components - Sensing Rods(2)59Sensor Rods (Grey & Pink wires) have a disconnect plug behind the front panel.Sensor rod moisture system can be checked using Service Mode Test t9.

Components Drum Rollers60

The drum rides on four rubber rollers.They are located on the lower, inside portion of the drum support panels.All four rollers are the same part number. (WE01X10384)Components Hi-Limit Thermostat61Under normal operating conditions this thermostat will remain closed at all times. It is used to prevent the heater assembly from getting too hot to safely operate.When the hi-limit thermostat opens, it interrupts line voltage to the UI/IMC causing the board to lose power. Resets Automatically. Locations

Gas ModelsElectric ModelsXX

Components Inlet Back-up Thermostat62Under normal operating conditions this thermostat will remain closed at all times, allowing the heaters to cycle based on inlet and outlet thermistor values.When the inlet backup thermostat opens, it interrupts line voltage to the heater or gas valve relays on the UI/IMC. Resets Automatically Locations

Gas ModelsElectric ModelsXX

Components Outlet Back-up Thermostat63Under normal operating conditions this thermostat will remain closed at all times, allowing the heaters or gas valve to cycle based on inlet and outlet thermistor values.When the inlet backup thermostat opens, it interrupts line voltage to the heater or gas valve relays on the UI/IMC. Resets Automatically LocationsGas ModelsElectric ModelsXX

Components Inlet Thermistor64The inlet thermistor provides air inlet temperature to the UI/IMC board. The board uses this information to cycle the heaters or the gas valve on and off.If an inlet thermistor fault is detected, the heaters or gas valve will cycle on the inlet and outlet backup thermostats.

Gas & Electric ModelsX

Components Outlet Thermistor65The outlet thermistor provides air inlet temperature to the UI/IMC board, the board uses this information to cycle the heaters and gas valve on and off.If an outlet thermistor fault is detected, the heaters or gas valve will cycle on the inlet and outlet backup thermostats.

Gas & Electric ModelsX

Components Thermistor Resistances66Temperature/Resistance Chart:50.0 (F) - 199.0K69.8 (F) - 119.4K75.2 (F) - 104.4K80.6 (F) - 91.6K86.0 (F) - 80.5K89.6 (F) - 74.0K95.0 (F) - 65.3K100.4 (F) - 57.7K105.8 (F) - 51.1K111.2 (F) - 45.4K116.6 (F) - 40.4K120.2 (F) - 37.4K149.0 (F) - 20.8K199.4 (F) - 8.3KService Mode(1)67 The Control must be in the Idle State in order to enter Service Mode. (System powered off. All LEDs off.)

The Following Key Sequence must be pressed: My Cycle -> Delay Dry -> My Cycle -> Delay Dry.

Service Mode(2)68 The sequence must be completed in order. If there is any other key press or the keys are pressed out of order, the sequence must be started from the beginning.

Upon entering the Service Mode, there will be a beep and the control shall be in test selection mode display beginning with test number 1 (T1).

t1Navigating Service Mode Tests69 Rotating the knob counter clockwise shall decrement the test number in the display.

Rotating the knob clockwise shall increment the test number in the display.

Once the test number is selected, pressing Start/Pause shall begin the selected test.

Individual Service Mode tests are exited by turning the selector knob to a different test number.

NOTE: If there is no model information programmed, all segments of the 7-Segment Display and LEDs shall blink and must be set as described in the (t1) section Setting Model Codes on an Uninitialized UI Card prior to entering Field Service Mode.

Exit Service Mode70Field Service Mode shall time out after 5 minutes if there is no user activity.

Pressing the Power key or unplugging power to the machine will exit Field Service Mode.Service Mode Tests71

Service Mode Tests72(t1) Setting and Viewing Model Codes:(1)

Displaying Model Codes:When entering the test the User Interface Mode Type is displayed as a three digit decimal number.

When Start key is pressed the Heater Type is displayed on the 7-segment display as "g" for Gas or "E" for Electric

Each time the user presses Start key, the 7-segment display will alternate between display of one of the previous two fields.

The combination of these two Model Codes can be used to determine the Dryer Model Number.

Service Mode Tests73(t1) Setting and Viewing Model Codes:(2)

Setting Model Codes:In the Dryer Model Codes (t1) test when Displaying Model Codes by simultaneously pressing the two buttons Temp & Level the dryer Model Codes can be set.

First the current User Interface Mode Type is first displayed and can be adjusted as follows:

*** Pressing key Level will wrap though valid User Interface Mode Type for the dryer and it increases until it wraps to the lowest valid number.

*** Pressing key Temp will wrap thought valid User Interface Mode Type and it decreases until it wraps to the highest valid number.Service Mode Tests74(t1) Setting and Viewing Model Codes:(3)

Pressing the Start key will temporarily save the User Interface Mode Type.

Next the current Heater Type selection is displayed as "g" Gas or "E" Electric.

Pressing Temp or Level key will alternate the 7-segment display between the two Heater Type selections.

Pressing the key Start for 3-seconds will store the both the User Interface mode and Heater Type into non-volatile memory.

If the sequence is interrupted the User Interface Mode and Heater Type will not be saved.Service Mode Tests75(t1) Setting and Viewing Model Codes:(4)

Once the Heater Type and User Interface Mode have been successfully set in this test the unit will sound a valid tone and go to Idle Mode.

Service Mode Tests76(t2) UI Software Version Check:

The control shall display the Software Version Number in decimal number system on the 7-segment display automatically alternating between:

*** The 2-digit Major Software Version number and the LED for the Extended Tumble key will be turned on.

*** The 2 digit Minor Software version number and the LED for the Damp Alert key will be turned on.

Service Mode Tests77(t3) XML Version Check:

The SSD control shall display the XML Version Number in the decimal number system automatically alternating between:

*** Displaying the 2-digit Major XML Version number and the LED for the Extended Tumble key will be turned on.

*** Displaying the 2 digit minor XML version number and the LED for the Damp Alert key will be turned on.

Service Mode Tests78(t4) Error Codes:

The control shall display the most recent error in the fault log upon entry into the display error codes test. If there are no errors in the fault log, then No Error Code (000") shall be displayed on the 7-segment display.

The control shall clear the displayed error from the fault log if the Start button is pressed during the display error codes test.

After clearing the displayed error from the fault log, the appliance shall display the next most recent error from the fault log.

After clearing all errors from the fault log, the control shall display the ("000) code on the 7-segment display.

The control shall log the last 8 error codes in the non-volatile memory stored in a circular list.

Error Codes79

Service Mode Tests80(t5) CRC Non-volatile Memory Test:

The Control shall compute the 16-bit CRC of the non-volatile memory and compare it with the pre-computed 16-bit CRC that is stored in the non-volatile memory.

The Control shall sound the Button Press Beep and display EP" on the 7 segment display after successful 16-bit CRC comparison.

The Control shall display Er" on the 7-segment display and sound the Invalid Button Press beep if the 16-bit CRC fails.

Service Mode Tests81(t6) User Interface Test:

The Control shall turn on all indicators on the 7-segment display and turn on all LED indicators.

A key test is active with this test, when a key is pressed (other than the Power Key) it will sound a Valid Key Tone.

Service Mode Tests82(t7) Outlet Thermistor Test:

The Control shall display the Outlet Thermistor temperature in degreesFahrenheit on the 7-segment display during the test.

* The Control shall start the drum motor during the test.

* Electric Units will turn on both the Inner and Outer Coil during the test.

* Gas units shall turn on the Gas Valve and Igniter during this test.

* Opening the Dryer Door will turn off the drum and heater source.

* The Control shall turn off the motor and all heater sources before exiting this test.

Service Mode Tests83(t8) Inlet Thermistor Test:

The Control shall display the Inlet Thermistor temperature in degreesFahrenheit on the 7-segment display during the test.

* The Control shall start the drum motor during the test.

* Electric Units will turn on the Inner Coil during the test

* Gas units shall turn on the Gas Valve and Igniter during this test.

* Opening the Dryer Door will turn off the drum and heater source.

* The Control shall turn off the drum motor and all heat sources before exiting this test.

Service Mode Tests84(t10) Door Open / Closed Test:

The control shall display dc if the door as closed or do if door is opened.

Service Mode Tests85(t11) Water Valve Test:

* The control shall turn on the water valve relay and the drum motor when the start button in pressed (On will be displayed). When the start button is pressed again the relay will be turned off (OFF displayed).

* A beep shall be sounded every time the start button is pressed.

* Control will turn off the valve and the drum motor when the door is opened.

* The control will turn off the valve and the drum motor when the test mode is changed.

* The control shall turn off the valve and the drum motor if the Field Service mode is exited.

* When the valve and drum motor are turned off by the previous threeconditions when the executing the test, the user must press start to restart the test to turn on the drum motor and steam relay.

Service Mode Tests86(t12) Restore EEPROM Values:

If the start button is pressed the default EEPROM values will be restored except; Heater Type Mode and User Interface Type Mode which will remain unchanged. If restored properly then EP will be displayed on the seven-segment display. (PASS)

If there was an error then EF will be displayed. (FAIL)

Until default EEPROM values are restored any user input including control knob change and Power key will be locked out.

Service Mode Tests87(t13) Drum Test:

The control shall start the drum rotation in the forward direction for 30 seconds and the 7-segment display will display On.

If the test is ran on models which support the detangle feature, a pause duration including a six second drum motor reversal delay (to ensure an empty drum reverses) will occur.

Then the control will start the drum rotation in the reverse direction for 30 seconds and the 7-segment display will continue display On. Rotation will then stop and 7-segment display will display OFF.

Note: Opening the Dryer Door will cause the drum motor to stop and OFF will be displayed. Exiting the test will turn off the drum rotation.

Schematic (Electric)88

Schematic (Gas)89

END OF PRESENTATIONTHANK YOU FOR YOUR ATTENTION .

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