PowerPoint Presentation

Marcone 2014 MSA TrainingGE Mission 1Top Load Dryer

1GTDP740EDWW/GDWWGTDL740EDWW/GDWWGTDS810EDWS/GDWSGTDS815EDMC/GDMCGTDS820EDWS/GDWSGTDS825EDMC/GDMCGHDS830EDWS/GDWSGHDS835EDMC/GDMCGTDS850EDWS/GDWSGTDS855EDMC/GDMCGTDS860EDWS/GDWSGTDS865EDMC/GDMC

IMPORTANT SAFETY NOTICEThe 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.

WARNINGTo 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 DEVICESIf 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.2

GTDP740EDWW/GDWWGTDL740EDWW/GDWWGTDS810EDWS/GDWSGTDS815EDMC/GDMCGTDS820EDWS/GDWSGTDS825EDMC/GDMCGHDS830EDWS/GDWSGHDS835EDMC/GDMCGTDS850EDWS/GDWSGTDS855EDMC/GDMCGTDS860EDWS/GDWSGTDS865EDMC/GDMC

ColorsWhite/ White Silver Metallic/Carbon Newly Designed GE Top Load DryersGBrandP=ProfileG=GEH=HotpointM=MoffatTConfigT=Top LoadF=Front LoadU=UnitizedTL DerivativesC=ContractH=Home DepotL= LowesM=MiscellaneousDProductW=WasherD=DryerM=CanadianSUS SoldKey FeatureS=SteamA=AdditivesC=CondenserN=None/StainlessP=7.0 duradrumX=6.0 duradrumL = Long VentWWSpecific ColorWW=WhiteBB=BlackCC=BisqueMC = Metallic CarbonMV=Metallic RedMG=Metallic GoldMS=Metallic BlockWS=Silver backguardWT=Titanium backguardDYear0Color0=White5=Color86SeriesEFuelE=ElectricG=Gas0EngineeringDigit2012 Clothes Care NomenclatureDryerWarranty

Warranty

AFBDECG

Controls Dryer FeaturesClean 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 startedInstallationVent Exhaust Length (Normal & Long Vent Models)

InstallationLeveling and Stabilizing

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.

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 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.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. 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.

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.

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

Before lifting the front panel off of the bottom inserts,

remove the LED light and door switch from the front panel.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 on the lint screen housingDrum 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 BeltInternal Components ELECTRIC

Heater AssemblyBlower AssemblyDrum/Blower MotorBelt Tension Pulley AssemblyWater Valve AssemblyDrum Roller Support AssemblyRear BulkheadInternal Duct

Drum blower MotorBlower MotorDrum Motor

Misting Nozzle on the REAR roller Bulkhead

Internal Components Electric Thermistor/ Thermostat Locations

Internal ComponentsGAS

Drum blower MotorBlower MotorDrum Motor

Water Valve AssemblyDrum Blower MotorBlower AssemblyBelt Tension Pulley AssemblyInternal DuctGas Burner, Igniter AssemblyDrum Roller Support AssemblyRear BulkheadFlame Sensor

Misting Nozzle on the REAR roller Bulkhead

Internal Components Gas Thermistor/ Thermostat Locations

Rear Roller Support BulkheadRemoval

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 and the 1 at the bottom below the bottom roller wheel.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 SEE BELOW

Blower

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

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 Heater Removal - Gas

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 bracketHeater 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. 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.

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.Flame SensorRemoval

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. 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.

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

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

Board NEUTRAL is the WHITE wire on the J8 connecter.SchematicGas Dryer - AC Voltage To The BoardAbove diagram shows only non long vent and non steam models.

Board NEUTRAL is the WHITE wire on the J8 connecter.SchematicElectric 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.SchematicElectric 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.Resistance/Voltage ChartsELECTRIC 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 COMMONNOTE: 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 Coil580 ohm 120 v ac Main Coil1300 ohm 120 v ac Safety Coil1400 ohm 120 v ac

Test Booster HereTest Safety HereTest Main HereFUSE 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

Main boardConnecter Locations

J25J11J10J7J8J5J2J4J6Above diagram shows only non long vent and non steam models.Diagnostics From The BoardSensor 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.J25Diagnostics From The BoardLED Light

J11Check 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.

Diagnostics From The BoardInlet Thermistor

J10Disconnect 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.

Diagnostics From The BoardOutlet Thermistor

J10Disconnect 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.

Diagnostics From The BoardHeaters Resistance Reading

J7J2Disconnect 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.

J7J2Check 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 BoardHeaters Voltage Reading

J8J5

J8J4Diagnostics From The BoardDead 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.Diagnostics From The BoardWater Valve

J8J5Disconnect 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. Above diagram shows only non long vent and non steam models.

J8J2J4Diagnostics From The BoardGas 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 ampsAlso 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.Diagnostics From The BoardMotor Resistance

J5J8Disconnect 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 connectersIgniter And Flame Viewing

When Servicing The Gas DryerThe 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.Service ModeHow 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.

Service Mode

VOLTAGES ARE READ FROM LINE to NEUTRAL

Service ModeFault 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 frequencies listed below automatically. Voltages are read from LINE to NEUTRAL SSD means 7 Segment Display

Service ModeModel Id Table END OF PRESENTATIONTHANK YOU FOR YOUR ATTENTION .

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