GE Mission 1 Front Load Dryer - MSA World – Marcone ... Mission 1 Front Load Dryer 1 . GE Front...

Marcone 2014 MSA Training

GE Mission 1 Front Load Dryer

1

GE Front Load Dryer

MODELS

GFDS250EF/GF GFDS255EF/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

Warranty

3

Nomenclature

GFDR480GFWW

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

4

Features (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"

5

Model / Serial Plate Location

The 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 Location

The 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.

8

Rear view of dryer

Feature Definitions - Steam

Steam - 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 - eDry

• eDry - 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 = Low

Extended Tumble = eDry is Disabled

Sanitize = eDry is Disabled

10

Feature Definitions - eMonitor

eMonitor - Visual display of the energy

use of the appliance.

eMonitor Ranges:

Good (1 light) to Best (5 lights).

11

Feature Definitions – Detangle(1)

12

Detangle - 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)

13

• When 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 levels

14

• Dryness 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 Riser

Integrated Riser - Adds an additional

7" of height to the unit.

15

Disassembly - Control Panel Removal(1)

Remove the cycle selector knob by pulling it forward.

16


Remove the cycle selector knob retainer by pulling it forward.

17


Remove the T20 Torx Head screw securing control panel to

frame.

18


Lift the control panel straight up to disengage the mounting

tabs.

19


Multiple cables / plugs connect the UI/IMC board to the

electromechanical components of the dryer.

20

Disassembly – Top Panel Removal

• Remove 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.

21

Disassembly – Door Removal

• Remove 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 Removal

• Tilt 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 riser

panel does not have to

be removed in order to

remove the dryer front

panel. Prop blocks removed for better viewing

23

Disassembly - Front Panel Removal(1)

24

• Remove the control panel.

• To reduce weight, remove the door assembly.

• Remove the 4 front panel screws located at the top of the

front panel.


25

• Next, remove 3 Phillips head screws securing front panel to

drum support.


26

• Tilt panel forward an inch or two and remove the two wires

from the door switch.


27

• Remove front panel and set aside.

Disassembly – Trap Duct Assembly(1)

28

• To remove trap duct: 1. Remove three ¼” hex head screws.

2. Grasp duct assembly and pull straight down & out.

Disassembly – Trap Duct Assembly(2)

29

• Removal of trap duct assembly provides ample room to

access belt, pulleys & some other components through the

front of the machine.

Disassembly – Blower Wheel

30

Removal: After removing trap duct assembly:

1. Remove two ¼” 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 holding

blower wheel to shaft. Nut is reverse threaded.

Disassembly – Drum Support & Drum(1)

31

Removal: 1. After removing trap duct

assembly, remove 4- ¼” hex

heads securing control

assembly bracket.

2. Flip back control bracket so a

to clear drum support.

3. Remove 4 additional ¼” hex

heads (one from each arm of

support).

4. Support will stay in place with

screws removed because of a

tab from each arm into side

panel.


32

Removal: 5. Lift drum support upwards

slightly to release tab at each

arm.

6. 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.

7. Remove drum support from

machine and set aside.

Disassembly – Drum Support and Drum(3)

33

• 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


34

Removal: 8. Remove belt from pulleys if

necessary.

9. Using belt as a handle lift drum

and remove from machine.

Disassembly – Rear Panel(1)

35

• To removal rear panel: 1. Remove control panel & dryer top panel.

2. Remove ¼” hex head screws around the perimeter of rear panel.

3. Remove ¼” hex head securing water valve to rear panel.

4. Lift off and remove panel from dryer.

Disassembly – Rear Panel(2)

36

• Removal 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 Thermistor

Components – 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.

37

Remove six 5/16” screws from control to separate it from the control

panel housing.


38

The control itself, the control panel housing or escutcheon and

what they call “button trees”, all come as separate components.

Control

Control Housing Button Tree Button Tree


Board Layout:

39

J8

J1

J6 J5

J14 J2

J3

J9 J7 J4

Components – Motor – (120vac Reversible Motor)

To Remove Motor:

1. Using a flat blade screwdriver lift up and release spring clips at front

and back of motor.

2. Lift tabs at top & bottom of power plug and pull out to release.

3. Lift motor from machine.

40

Power Plug

Components – Idler Pulleys

Dryer uses a dual pulley system with a spring between the two Idler

arms to provide for belt tension.

41 (Front View)

Components - Belt

Standard dryer belt (WE12X10020) fed around drum, motor pulley and two

idler pulleys.

42

Rear View

Rear View

Components - Belt Switch

1. Belt switch is mounted to the back side of the rear motor mounting

plate.

2. With belt intact, switch is closed providing a path for Neutral to the

motor circuit.

3. If belt breaks, idler arm falls and a “foot” on the arm depresses switch

arm opening the Neutral circuit to the motor.

43

(Rear View)

Components - Gas Valve

• Standard three coil gas valve mounted to the burner bracket with three

¼” hex head screws.

• At this point, GE parts breakdown shows no replacements for the coils.

The complete gas valve is one component. (WE14X10109).

44

Components - Gas Valve - Operation

45

L

L1 N

Components - Gas Valve – LP Conversion

46

• 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 ¼” hex

head screws securing top of burner

assembly.

2. Remove burner top.

47



3. With a stubby ¼” driver or socket,

remove ¼” hex head securing

ignitor to burner bracket.

4. Disconnect power plug to ignitor.

48



5. After removing mounting screw,

lift ignitor mounting bracket clip

from burner bracket.

6. Remove ignitor from dryer burner

assembly.

49

Components - Flame Detector

1. The flame detector is secured

to the burner tube with a tab

and a ¼” hex head screw.

2. The flame detector should

normally be closed. (0 Ω)

50

Components – Heater Assembly

51

The heater and enclosure (minus the thermostats) comes as an assembly.

(WE11X10025)

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

Components - Steam Valve

• The 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.

52

Components – Steam Nozzle(1)

53

• 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)

54

• 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 Applied

Rear view of nozzle base

Components – Door Switch

• The 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.

55

Components – Drum Light

• On 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 it’s 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.

56

Components - Sensing Rods(1)

57

Sensor Rods are located on the back side of the drum support just below

the lint trap.

Components - Sensing Rods(2)

58

• Sensor 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 Rollers

59

• 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 Thermostat

60

• Under 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 Models Electric Models

X

X

Components – Inlet Back-up Thermostat

61


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


X X

Components – Outlet Back-up Thermostat

62


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

Locations


X

X

Components – Inlet Thermistor

63

• The 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 Models

X

Components – Outlet Thermistor

64

• The 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 Models

X

Components – Thermistor Resistances

65

Temperature/Resistance Chart:

50.0 (F) - 199.0K

69.8 (F) - 119.4K

75.2 (F) - 104.4K

80.6 (F) - 91.6K

86.0 (F) - 80.5K

89.6 (F) - 74.0K

95.0 (F) - 65.3K

100.4 (F) - 57.7K

105.8 (F) - 51.1K

111.2 (F) - 45.4K

116.6 (F) - 40.4K

120.2 (F) - 37.4K

149.0 (F) - 20.8K

199.4 (F) - 8.3K

Service Mode(1)

66

• 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)

67

• 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).

t1

Navigating Service Mode Tests

68

• 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 Mode

69

• Field 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 Tests

70

Service Mode Tests

71

(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 Tests

72


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 Tests

73


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 Tests

74


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 Tests

75

(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 Tests

76

(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 Tests

77

(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 Codes

78

Service Mode Tests

79

(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 Tests

80

(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 Tests

81

(t7) Outlet Thermistor Test:

The Control shall display the Outlet Thermistor temperature in degrees

Fahrenheit 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 Tests

82

(t8) Inlet Thermistor Test:

The Control shall display the Inlet Thermistor temperature in degrees

Fahrenheit 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 Tests

83

(t10) Door Open / Closed Test:

The control shall display “dc” if the door as closed or “do” if door is

opened.

Service Mode Tests

84

(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 three

conditions 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 Tests

85

(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 Tests

86

(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)

87

Schematic (Gas)

88

END OF

PRESENTATION

THANK YOU FOR YOUR

ATTENTION …….

89

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