GE 2012 Dryer Training Service Manual

2 Copyright General Electric 2012

12/3/2012

GTDP740EDWW/GDWW GTDL740EDWW/GDWW GTDS810EDWS/GDWS GTDS815EDMC/GDMC GTDS820EDWS/GDWS GTDS825EDMC/GDMC GHDS830EDWS/GDWS GHDS835EDMC/GDMC GTDS850EDWS/GDWS GTDS855EDMC/GDMC GTDS860EDWS/GDWS GTDS865EDMC/GDMC

GE Appliance Park Proudly Presents The Newly Designed GE Dryers For 2012

Colors White/ White Silver Metallic/Carbon


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Table of Contents Page Number ......Description

3, 4, 5 ..Table Of Contents 6, 7, 8, 9 ...Safety 10 ..Nomenclature 11 ..Mini Manual location 12, 13 .Warranty Info 14 ..Schematic, Electric Dryer - AC Voltage Into The Board and Motor Switch

15 ..Schematic Gas Dryer - AC Voltage To The Board 16 ..Schematic, Electric And Gas Long Vent 17 ..Schematic, Electric And Gas Mist Water Valve 18, 19, 20, 21 ..Service Mode 22, 23 ,24 Resistance/Voltage Charts 25 ..Main Board Connecter Locations 26 ..Diagnostics From The Board - Sensor Rods 27 ..Diagnostics From The Board - LED Light 28 ..Diagnostics From The Board - Inlet Thermistor 29 ..Diagnostics From The Board - Outlet Thermistor 30 ..Diagnostics From The Board - Heaters Resistance Reading 31 ..Diagnostics From The Board - Heaters Voltage Reading / Low Heat or No Heat Issues


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32 . Diagnostics From The Board Dead Board 33 . Diagnostics From The Board Water Valve 34 . Diagnostics From The Board Gas Valve 35 . Diagnostics From The Board Motor Resistance 36 . Igniter And Flame Viewing 37 . Installation 38 . Installation Cord Replacement 39 . Installation Vent Exhaust Length 40, 41, 42 .. Installation - Location 43 . Installation Leveling and Stabilizing 44 - 52 . Reversing the Door Swing 53 - 58 . Controls 59 . Dryer Features 60 . Dryer Features Clean Speak 61 . Disassembly 62, 63, 64 .. Disassembly Backsplash Removal 65, 66 Disassembly Top Cover Removal 67, 68 Disassembly Front panel removal 69, 70 Disassembly Drum removal


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71 . Disassembly Internal Components Electric 72 . Disassembly Internal Components Electric - Thermistor/ Thermostat Locations

73 . Disassembly Internal Components Gas 74 . Disassembly Internal Components Gas - Thermistor/ Thermostat Locations

75 . Rear Roller Support Bulkhead - Removal 76 . Blower 77 . Heater Removal Electric 78 . Heater Removal Gas 79 . Heater Removal Gas Valve Assembly 80 . Heater Removal Main Burner Assembly 81, 82 Heater Removal Glow Bar Replacement 83 ... Flame sensor - Removal 84, 85 ... Water Valve 86 - 90 . Before You Call For Service 91 . Any Questions - End

IMPORTANT SAFETY NOTICE

The information in this presentation is intended for use by individuals possessing adequate backgrounds of electrical, electronic, & mechanical experience. Any attempt to repair a major appliance may result in personal injury & property damage. The manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connection with its use.

WARNING

To avoid personal injury, disconnect power before servicing this product. If electrical power is required for diagnosis or test purposes, disconnect the power immediately after performing the necessary checks.

RECONNECT ALL GROUNDING DEVICES

If grounding wires, screws, straps, clips, nuts, or washers used to complete a path to ground are removed for service, they must be returned to their original position & properly fastened.


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G

Brand P=Profile G=GE H=Hotpoint M=Moffat

T

Config T=Top Load F=Front Load U=Unitized

TL Derivatives C=Contract H=Home Depot L= Lowes M=Miscellaneous

D

Product W=Washer D=Dryer M=Canadian

S

US Sold Key Feature S=Steam A=Additives C=Condenser N=None/Stainless P=7.0 duradrum X=6.0 duradrum L = Long Vent

W W

Specific Color WW=White BB=Black CC=Bisque MC = Metallic Carbon MV=Metallic Red

MG=Metallic Gold MS=Metallic Block WS=Silver backguard WT=Titanium backguard

D

Year

0

Color 0=White 5=Color

8 6

Series

E

Fuel E=Electric G=Gas

0

Engineering Digit

2012 Clothes Care Nomenclature Dryer


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Mini Manual Location

The Mini Manual is located

in the Backsplash area.

Remove power from the

dryer.

Follow the instructions for

rolling the Backsplash

forward on page 62,

Backsplash Removal.

Once it is rolled forward,

you will have access to

the Mini Manual.


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Warranty


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Schematic Electric Dryer - AC Voltage Into The Board And Motor Switch

Above diagram shows only non long vent and non steam models.


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Schematic Gas Dryer - AC Voltage To The Board



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Schematic Electric And Gas Long Vent

The strip circuit diagram below shows connections for long vent models. It shows how the blower motor is connected into the circuit from the board.

Board NEUTRAL is the WHITE wire on the J8 connecter.


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Schematic Electric And Gas Mist Water Valve

The strip circuit diagram below shows connections for mist models. It shows how the water valve is connected into the circuit from the board.

Board NEUTRAL is the WHITE wire on the J8 connecter.


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Service Mode

How to enter the service mode and navigate. From an idle state, simultaneously press and hold the START and rotate the CYCLE SELECT KNOB 180 degrees (8 Clicks) and then release the start button to enter the service mode. Upon entering the service mode the control will be in the test selection mode and will be displaying test 1( )in the display. Rotating the knob counter clockwise will increase the test number. Rotating the knob clockwise will decrease the test number. Once the test number is selected, press the start button to enter that test. To exit that test, rotate the knob either CW or CCW. Pressing the power button will exit the machine from the service mode.


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Service Mode Tests

Blinks LEDs waiting for input. Three sec press of Time and Level keys.


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VOLTAGES ARE

READ FROM

LINE to

NEUTRAL

Service Mode Fault Codes

Errors that are not self explanatory. F7 Miss-wire - will appear on the control and the user will be locked out from

running the machine until the voltage is the correct operating range. (See Chart Below) Note- Dryer will operate normally with voltage frequencies of 45, 60 and 75 Hz automatically. Voltages are read from LINE to NEUTRAL

SSD means 7 Segment Display


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Service Mode Model Id Table


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Resistance/Voltage Charts Electrical Requirements

ELECTRICAL REQUIREMENTS: Electric Dryer: This dryer must be connected to an individual branch circuit, protected by the required time-delay fuses or circuit breakers. A four or three wire, single phase, 120/240V or 120/208V, 60Hz, 30 amp circuit is required. If the electric supply does not meet the above specifications, then call a licensed electrician.

WARNING - TO REDUCE THE RISK OF FIRE, ELECTRICAL SHOCK AND PERSONAL INJURY: DO NOT USE AN EXTENSION CORD OR AN ADAPTER PLUG WITH THIS APPLIANCE.

Dryer must be electrically grounded in accordance with local codes and ordinances, or in the absence of local codes, in accordance with the NATIONAL ELECTRICAL CODE, ANSI/NFPA NO. 70.

ELECTRICAL REQUIREMENTS: Gas Dryer: This appliance must be supplied with 120V, 60Hz, and connected to a properly grounded branch circuit, protected by a 15- or 20-amp circuit breaker or time delay fuse. If electrical supply provided does not meet the above specifications, it is recommended that a licensed electrician install an approved outlet.

WARNING - THIS DRYER IS

EQUIPPED WITH A THREE-PRONG (GROUNDING) PLUG FOR YOUR PROTECTION AGAINST SHOCK HAZARD AND SHOULD BE PLUGGED DIRECTLY INTO A PROPERLY GROUNDED THREE-PRONG RECEPTACLE. DO NOT CUT OR REMOVE THE GROUNDING PRONG FROM THIS PLUG.

GROUNDING INSTRUCTIONS: This dryer must be connected to a grounded metal, permanent wiring system, or an equipment grounding conductor must be run with the circuit conductors and connected to the equipment grounding terminal on the appliance.


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Resistance/Voltage Charts

ELECTRIC HEATER BLUE WIRE J2 TO WHITE WIRE J5 AT THE BOARD - 41.9 ohms - 240 v ac

IGNITER 55 ohm - 120 v ac 3.5 amps

L.E.D. TUB LIGHT- BLACK AND RED WIRES J11 AT THE BOARD - MULTI METER SET TO DIODE WILL READ 0.7 VDC. DC VOLTAGE TO BULB FROM BOARD IS 3.8 v dc.

WATER VALVE RED WIRE J5 TO BROWN WIRE J8 AT THE BOARD - 550 ohms 120 v ac

GAS VALVE OUTER LEFT POST ON DOUBLE COIL IS COMMON

NOTE: ALL METER READINGS CAN VARY DEPENDING ON THE METER USED TO TEST AND THE LOCATION ON THE UNIT WHERE THE TEST IS DONE. I. E. AT THE BOARD OR THE COMPONANT. +/- 5%

Booster Coil 580 ohm 120 v ac

Main Coil 1300 ohm 120 v ac

Safety Coil 1400 ohm 120 v ac

Test Booster Here Test Safety Here Test Main Here


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FUSE RATING CLASS CCCURRENT LIMITING TIME DELAY CCMR 30AMP 600 v ac

Resistance/Voltage Charts

DRUM MOTOR - START WINDING - 3.14 ohm - 120 v ac RUN WINDING - 3.36 ohm - 120 v ac

LONG VENT BLOWER MOTOR - 15 ohms 120 v ac


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Main board Connecter Locations

J25

J11

J10

J7

J8

J5 J2

J4 J6


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Diagnostics From The Board Sensor Rods

Check from the J25 connecter on the board. Look for approximately 5 VDC. Lay a wet cloth

across the rods in the drum. You should see the voltage drop.

If you do not see the voltage drop, disconnect power from the dryer. Disconnect the J25 connecter from the board. With the wet cloth still across the rods, check the continuity across

the pink and gray wires. If no continuity, visually check harness and connecters for damage.

If you have continuity, replace board.

J25


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Diagnostics From The Board LED Light

J11

Check from the J11 connecter on the board. Look for approximately 3.8 VDC.

If you see the voltage but no light, disconnect power from the dryer. Disconnect the J11

connecter from the board. Set your meter to DIODE setting. With your BLACK LEAD on the

RED wire, and your RED LEAD on the BLACK wire, you should read approximately 0.727 if

good. If you reverse your meter leads, RED ON RED, you will not get a reading.


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Diagnostics From The Board Inlet Thermistor

J10

Disconnect power from the dryer. Check from the J10 connecter on the board.

Disconnect the J10 connecter from the board. Set your meter to Resistance setting. Check resistance between the 2 WHITE wires.


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Diagnostics From The Board Outlet Thermistor

J10

Disconnect power from the dryer. Check from the J10 connecter on the board.

Disconnect the J10 connecter from the board. Set your meter to Resistance setting. Check resistance between the 2 BLUE wires.


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Diagnostics From The Board Heaters Resistance Reading

J7 J2

Disconnect power from the dryer. Check from the J7 to the J2 connecter on the board.

Disconnect the J7 connecter from the board. Set your meter to Resistance setting. Check

resistance between the BLUE wire on J2 and the WHITE wire on the J7 connecter. Should read approximately 41.9 OHM.


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J7 J2 Check from the J7 WHITE wire and the J2 BLUE wire connecters on the board to the Orange wires either at the J8 or the J5 connecters. You should read 0 VAC. You should see approximately 240 VAC from any of these wires to the L2 fuse with the unit in the running position. If you show 240 VAC at these test points, the relay is open. Replace the board.

Diagnostics From The Board Heaters Voltage Reading

J8 J5


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J8 J4

Diagnostics From The Board Dead Board

If the board is not responding check for voltage through the L1 fuse. If voltage is present there, check voltage from the J8 Orange wire to board neutral on J8 White wire. If no voltage check for an open T-STAT or fuse. Remove power from the dryer and disconnect the J8 connecter. Check continuity between the J8 and J4 wires. If good replace the board.


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Diagnostics From The Board Water Valve

J8 J5

Disconnect power to the dryer. Remove the J8 connecter. Check resistance between the J8 Brown wire to the Red wire on the J5 connecter. Should read approximately 550 OHM. If resistance is good, reconnect wires put the dryer in service mode. Check for 120 VAC at the same connections.


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J8 J2

J4

Diagnostics From The Board Gas Valve

Check igniter/flame visual as describe on slide 36. If no visual, check voltage out to igniter from J2 Red wire to the White wire on the J8. Should see 120 volts. Amp

draw can be checked from the RED wire on the J2 connecter. Approximately 3.5 amps

Also check between J4 and J2. If relay is closed NO voltage should be present when calling for heat. If it is, replace the board. If voltage is present,

disconnect power from the dryer. Check igniter, T-STATs, flame detect, gas valve coils, motor switch, harness and connecters.


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Diagnostics From The Board Motor Resistance

J5 J8

Disconnect power from the dryer.

Disconnect the J8 connecter from the

board. Set your meter to Resistance setting. Check resistance between the

BROWN wire on J8 and the RED wire on

the J5 connecter. This will read LOWER

THAN the lowest resistance because it

is a parallel circuit. Follow ohms law.

1/R1 + 1/R2 + 1/R3 = 1/RT

The START winding is 3.14 OHM. If that

is open, you may not detect this easily

because it will read the RUN winding,

3.36 OHM. Resistances are very close. If

both or the overload is open also it will read the BLOWER motor winding. 15

OHM. All resistances are approximate.

If reading open, possible idler switch

,motors, harness and harness

connecters


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Igniter And Flame Viewing

When Servicing The Dryer

The igniter function and flame can be seen through a viewer hole located in the base of the dryer. You will need to use a mirror as shown in the figures above. The viewer hole is actually the slot on the bottom of the front panel where the front panel mounts to the base.


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Installation


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Installation Cord Replacement


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Installation Vent Exhaust Length


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Installation Installation Location

.

.

.

.

.


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Installation Location

.

.

.

. .

.


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Installation Installation Location

.


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Installation Leveling and Stabilizing


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Reversing The Door Swing


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Reverse

Remove and Reverse Remove and Reverse


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Test the door swing to make sure the hinges and strike plate are lined up properly and that the door closes correctly.



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A F

B D

E

C G Controls


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Controls


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Controls

The way e-Dry works is it lowers the heat in any given cycle that it is allowed to be operated in.

Then it lengthens the dry time. It uses less energy to run the drum/blower motors than it does to

run the electric or gas heaters more. How does it make sure the clothes will be dry at the end of

the cycle? E-Dry still uses the dryness sensor rods to determine when the clothes are dry. Therefore any of the cycles, (including Bulky), will dry the clothes when the E-dry is selected. It

will simply take more time.


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Controls


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Dryer Features


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Dryer Features Clean Speak

This dryer can communicate with

a compatible washer, ( Models where Owner s Manual contains CLEAN SPEAK description), between the washer and dryer.

At the end of the wash cycle, the washer sends a signal to the dryer to indicate a preferred dry cycle. When the dryer becomes idle, CYCLE will scroll on the display and the current cycle LED will be lit solid. If the preferred dry cycle is different from the current cycle, a second recommended cycle setting LED will be blinking.

NOTE Clean Speak CYCLE times out after 5 minutes. Pressing the power button will refresh CYCLE and the LEDs no matter how long it has been timed out.

If the dryer knob is turned, the solid LED will move accordingly. Pressing start will initiate the knob setting and turn off the recommended blinking LED if a different cycle is started


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Disassembly


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Backsplash Removal

To remove the

backsplash you

first have to remove the trim.

On each side of

the trim, push in

easily on the

tabs. Then slide the trim forward


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Backsplash Removal

Remove the 3-

inch Hex screws.

Slide the backsplash toward the rear to disengage from the top cover and then roll forward.

2 posts on the top cover will hold the backsplash in place.


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Backsplash Removal

NOTE: Always Be careful of wire connections when separating backsplashes.

After rolling forward remove

the 5 screws, (Phillips), on the rear of the backsplash to access the main board.


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Top Cover Removal

Remove 2 (square head, Robertson/Phillips) screws. One on each side.

Then push and hold the 2 standard spring clips up with a tool (screwdriver), to disengage the top cover.

TIP - While holding clip up with the tool, and the tool is still inside the clip area, pull the top cover forward with the tool. This can be done one side at a time just to get past the clip.


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Top Cover Removal

After pushing the

clips and sliding the top cover forward, disengage from the rear hold down bracket. Then Lift the top cover off.


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To remove the Front Panel, 6 Square head/Robertson screws need to be removed.

Front Panel Removal


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Front Panel Removal

Before lifting the front panel off of the bottom inserts,

remove the

LED light and door switch from the front panel.


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Drum Removal

Completely remove 8 Screws that hold the front drum roller support Bulkhead in place. Remove the belt. Then remove the drum

The 2 top screws do not need to be removed. They are slotted so just loosen.

2 of the 8 screws are located

here on the lint screen housing

2 of the 8 screws are located

here on the lint screen housing


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Drum Removal

Disconnect sensor rods. Then remove front roller support.

Drum can be remove after belt is unhooked from motor and pulley.

Drum rollers can be replaced if needed at this point

Standard single pulley installation. 5 Rib Belt


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Internal Components Electric

Heater Assembly

Blower

Assembly

Drum/Blower Motor

Belt Tension Pulley

Assembly

Water Valve Assembly

Drum Roller Support Assembly Rear Bulkhead

Internal Duct

Drum blower Motor

Blower Motor

Drum Motor

Misting Nozzle on the REAR roller Bulkhead


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Internal Components Electric Thermistor/ Thermostat Locations


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Internal Components GAS

Drum blower Motor

Blower Motor

Drum Motor

Water Valve Assembly

Drum Blower

Motor

Blower Assembly

Belt Tension Pulley Assembly

Internal Duct

Gas

Burner, Igniter Assembly

Drum Roller Support Assembly Rear Bulkhead

Flame Sensor

Misting Nozzle on the REAR roller Bulkhead


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Internal Components Gas Thermistor/ Thermostat Locations


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Rear Roller Support Bulkhead Removal

These items can also be accessed from the rear by removing back panel if the dryer is in an accessible area.

Remove The 2 screws on the top of the bulkhead, the 2 bottom side screws, 1 at the bottom below the bottom roller wheel and 1 at the rear of the heat exchanger.

Again, loosen the top 2 side screws but do not remove. They are slotted. Lift and lean bulkhead forward.

This will allow front access to the inlet thermistor, high limit and safety thermostat, water tube, spray nozzle mounting and harnesses. Same for Gas

On gas models, remove the gas valve and combustion tube first before the bulkhead. 3 inch hex screws hold the tube in place. One at the back of the tube and 2 at the front .


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Blower

To remove the blower wheel, hold the shaft on the rear of the motor and turn the blower wheel to the right using a 15/16th inch socket to

remove. 15/16th inch


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To remove heater assembly, make sure power cord or circuit breaker is locked out with LOTO, disconnect the power wires. TAKE NOTE OF WIRE COLOR

POSITIONS FOR REINSTALATION.

Then remove the 2- inch hex head screws at the front of the heater and the screw at the top rear of the heater

housing.

Heater Removal - Electric


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Heater Removal - Gas


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Heater Removal - Gas Gas Valve Assembly

Disconnect plug

connecters from

the gas valve.

Remove the 3-

hex screws for the valve to come loose

from the mounting

bracket.

Lift and remove the complete gas valve assembly and

internal gas supply pipe for ease of valve removal. The pipe will slide out of the rear support bracket


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Heater Removal - Gas Main Burner Assembly

Remove the 3- hex screws for the

Main Burner to

come loose from the

mounting bracket.

Air shutter

adjustment screw.


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Heater Removal - Gas Glow Bar Replacement

To replace the glow bar remove the 2- inch hex

screws that holds the

burner assembly in place.

Unplug the connecter

for the glow bar. Then

lift and remove burner

assembly.


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Heater Removal - Gas Glow Bar Replacement

To replace the glow

bar remove the 1-

inch hex screws that

holds the glow bar

to the burner

assembly .

Then slide the

connecter through

the opening on the

bracket opening.

Note- the igniter can be changed without removing

the complete assembly.

Replace Glow

Bar.

Remove main burner

to gain access to the

inch screw that

holds igniter in place.

Slide unplugged

connecter through the bracket opening.


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Flame Sensor Removal

The flame sensor is located on the side

of the combustion chamber.

Easily removed by disconnecting wire

terminals from the sensor and remove the 1- inch hex screw that holds it to

the chamber.


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Water Valve

Turn Water supply Off at the House Supply Valve.

Disconnect Electric Supply to the unit And lock it out .

Disconnect water tube to the

valve.

Disconnect plug connecter at the water valve.

UPDATE The water valve will have a metal shield over it to protect from heat . The same mounting screws will be use to hold it in place.


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Water Valve

Remove the 2 mounting screws and pull valve in with hose attached. Opening is large enough so that the hose can be disconnected inside the cabinet.

NOTE: Be sure to wipe up any water on the inside after the repair is complete.


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Before You Call For Service


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GE 2012 Dryer Training Service Manual

Documents

Transcript of GE 2012 Dryer Training Service Manual