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GE DPGT750EC/GC, Technical Service Manual, Page: 1 / 63

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GE DPGT750EC/GC Technical Service Manual Download Page 1

MODEL SERIES:
DPGT750EC/GC

TECHNICAL SERVICE GUIDE

GE Consumer Products

Profile Gas and

Electric Dryers

HELP

BAC

K

START
STOP

HOME

MY CYCLE

POWER

PUB # 31-9104   07/03

Summary of Contents for DPGT750EC/GC

Page 1: ...MODEL SERIES DPGT750EC GC TECHNICAL SERVICE GUIDE GE Consumer Products Profile Gas and Electric Dryers HELP BACK START STOP HOME MY CYCLE POWER PUB 31 9104 07 03...

Page 2: ...switch do not use any phone in the building Immediately call the gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach the gas supplier call the fire departme...

Page 3: ...rvice Mode 35 Front Panel 23 Gas Valve 32 Heater Assembly Electric Models 29 Hi Limit Thermostat 32 Ignitor 33 Ignitor and Flame Detector 34 Inlet Safety Thermostat 30 Inlet Thermistor 30 Inverter 21...

Page 4: ...signator Body Color Backsplash Color Serial Number The first two characters of the serial number identify the month and year of manufacture Example RF123456S August 2003 A JAN 2005 H D FEB 2004 G F MA...

Page 5: ...ach you how to use the product Improper installation delivery or maintenance Failure of the product if it is abused misused or used for other than the intended purpose or used commercially Replacement...

Page 6: ...s equipped with dual motors one dedicated to the drum the other to the blower fan The addition of a dedicated blower motor enables the dryer to alter fan speed whenever necessary to optimize air flow...

Page 7: ...OTE If the dryer is inactive for 5 minutes the Touch Screen will go into standby mode and the display will be dark Press the Touch Screen or any button to wake up the display 5 HOME Press to return to...

Page 8: ...d of Cycle Signal volume Adjust time settings Close the door and press START The dryer will not operate unless the door is closed BY FABRIC BY GARMENT TOUCH TO SELECT Sensor DRY CYCLE SPECIAL CYCLES T...

Page 9: ...y FABRIC to dry loads sorted by fabric type FABRIC CYCLES include Select By Garment to dry loads sorted by garment type GARMENT CYCLES include Drying Using Timed Dry 1 Press TIMED DRY 2 Use the arrows...

Page 10: ...n then use the arrows to select the level of dryness Press OK when you have reached the desired setting MORE DRY Use for heavy duty fabrics DRY Use for a normal dryness level suitable for most loads T...

Page 11: ...Settings You can adjust the time setting for the dry cycle delay start and extended tumble times Touch the TIME pad on the Summary Screen then choose the time you wish to adjust To change the dry cyc...

Page 12: ...Screen 1 Press the MY CYCLES button 2 Select CREATE from the Touch Screen menu 3 Choose whether you want to modify a predefined cycle or create a new cycle 4 If you are modifying a predefined cycle s...

Page 13: ...ooting Tips for common dryer problems 1 Press the HELP button 2 On the Touch Screen select TROUBLE SHOOTER 3 On the Touch Screen select the problem description from the list You can use the arrows at...

Page 14: ...l dry cycle for your load To turn the Washer Dryer Communication feature on or off 1 From the Home Screen press the HELP button 2 Select MACHINE PREFERENCES from the Touch Screen 3 Select WASHER DRYER...

Page 15: ...F 4000 W 18000 BTU MEDIUM 19 AMPS 145F 155F 5000 W 22000 BTU HIGH 24 AMPS 160F 175F 6000 W 25000 BTU GAS MODEL APPROXIMATE TEMPERATURE AT LINT FILTER DRYER TEMPERATURE SETTING APPROXIMATE CURRENT DRAW...

Page 16: ...6 Electric Model Drive Motor Idler Pulley Blower Motor Outlet Thermistor Thermostat Heater Housing Inlet Hi Limit Thermostat Inlet Safety Thermostat Inlet Thermistor TRIAC Board Component Locator View...

Page 17: ...Gas Model Inlet Thermistor Combustion Chamber Inlet Hi Limit Thermostat Outlet Thermistor Thermostat Gas Valve Blower Motor Drive Motor Idler Pulley Ignitor Inlet Safety Thermostat Flame Sensor Detec...

Page 18: ...um Motor Inverter Board Gas Model Blower Motor Fuse Fuse 4 1 1 3 5 2 Blower Motor Main Board CN11 6 7 7 6 Ground 1 Moisture Sensor 2 Inlet Thermistor 3 Inlet Outlet Thermistor 4 Ground 5 Inlet Thermis...

Page 19: ...valve The dryer control performs three checks to determine whether the dryer is an electric LP gas or natural gas Initially the control looks for a flame sensor If the flame sensor is detected the co...

Page 20: ...Membrane keypanel Inverter Caution To prevent electrostatic discharge from damaging any electronic components use an ESD wristband or touch a grounded metal surface before servicing Backsplash Main C...

Page 21: ...inverter Membrane Keypanel The membrane keypanel is attached to the backsplash and is available only as a complete assembly When ordering a replacement backsplash the part must be ordered as left or r...

Page 22: ...C between pin 3 white wire and pin 7 blue wire on the white connector CN11 This voltage is used to keep the membrane and LCD display in standby waiting for a key press Upon activating a membrane pad o...

Page 23: ...removed Use caution to avoid injury when servicing dryer Wear Kevlar gloves or equivalent protection To remove the front panel 1 To access the 2 top Phillips head screws securing the front panel remo...

Page 24: ...the screws that hold the plastic rails in place Slide the rails forward and out Tech Tip The drum can be removed without removing the heat shield if desired However installation and removal of the du...

Page 25: ...e door switch circuit can be checked in the factory test mode Drum Rollers The 304 stainless steel drum rotates on four drum rollers Two on the front drum support and two on the rear drum support The...

Page 26: ...lamp Drum Light The drum light has a screw in 15 watt 120 VAC bulb located in the top of the front panel It is switched on the neutral side by the door switch Replace only with a bulb of the same siz...

Page 27: ...the motor wiring 5 Remove the spring straps Remove the drive motor from its cradle Drive Motor The drive motor is a single speed AC 1 3 hp motor with an automatic reset overload protector The overload...

Page 28: ...m rubbing the back of the blower housing 9 Remove the blower housing 10 With a flat blade screwdriver compress the open end of the spring strap one strap on each end of the drive motor until it releas...

Page 29: ...from 3000 to 6000 watts The open end in the back of the housing allows air to be drawn over the heating coils and into the drum Each row of coils should have a resistance value of 17 3 Remove the 2 Ph...

Page 30: ...ve the inlet thermistor access cover located on the back of the dryer 2 Disconnect the thermistor wiring Inlet Safety Thermostat The inlet safety thermostat is located on the left side of the heater h...

Page 31: ...The inlet safety thermostat monitors incoming air temperature If the thermostat reaches a temperature beyond its maximum temperature rating it will trip and disable all dryer functions except the dru...

Page 32: ...trip temperature of 230 F 110 C and a reset temperature of 194 F 90 C The hi limit thermostat on the gas models has a trip temperature of 194 F 90 C and a reset temperature of 158 F 70 C Gas Model Loc...

Page 33: ...or to the assembly Remove the ignitor Note There is a cutout on the edge of the combustion chamber to allow access to the screw The control operates the gas valves by supplying voltage based on varyin...

Page 34: ...pacitor that charges to approximately 5 VDC when the circuit is open and discharges to less than 1 VDC when the circuit is shorted When wet clothes tumble across the two rods the clothes create a very...

Page 35: ...ss HOME on the keypanel 3 Press and hold MY CYCLES and BACK simultaneously for 3 seconds The control will display any recorded errors If no errors have been recorded press EXIT to return to the HOME s...

Page 36: ...be performed a Make a note of the listed errors Press EXIT the screen prompts you to unplug the dryer before servicing Note Pressing EXIT clears all error messages and activates the setup mode progra...

Page 37: ...mately 2 minutes after starting test INLET THD Displays inlet thermistor temperature in F Note Control is not capable of displaying temperature below 152 F Room temperature will display as 152 F OUTLE...

Page 38: ...ce Mode Standby Mode Setup Mode Power Up unit plugged in My Cycles Back Buttons 3 secs Exit Button Power Cycled error codes set Complete Setup Mode Home My Cycles Buttons 3 secs Cycle Started Cycle Co...

Page 39: ...cure Checkerboard pattern in MY CYCLES screen Electrostatic discharge on main board Enter MY CYCLES and press DELETE on the touch screen LCD this will clear the checkerboard pattern Possible Cause and...

Page 40: ...while in Factory Test Mode measure current through orange wire on inverter connector 17 current should be at least 12A when heater should be on If current is 0A zero amps check 1 Check continuity of...

Page 41: ...e Check centrifugal switch continuity in open and closed state according to the terminals shown on the mini manual Replace drum motor Thermistor failure Check room temperature resistance of thermistor...

Page 42: ...ely 4 9 volts Then place a wet cloth across sensor Voltage should drop to less than 1 volt Reconnect or replace sensor as necessary Noise Worn rollers Check for flat spots or grooves worn on rollers R...

Page 43: ...rmistor No error displayed Heater will be limited to 60 of maximum power Screen will display There is a problem with the outlet thermistor Please check and replace if necessary Thermistor reading is o...

Page 44: ...the dryer acknowledging receipt of information An error is set if the dryer has not received a proper response from the washer after 3 attempts 1 Check options to ensure communications feature is sel...

Page 45: ...ith this unit The dryer will stop operation Screen will display The ignition system is not firing Please check the ignitor flame detector valves and inverter Replace if necessary Using the feedback si...

Page 46: ...ic Model WARNING Disconnect electrical power before servicing Caution Label all wires prior to disconnection Wiring errors can cause improper and dangerous operation Verify operation after servicing S...

Page 47: ...7 Gas Model WARNING Disconnect electrical power before servicing Caution Label all wires prior to disconnection Wiring errors can cause improper and dangerous operation Verify operation after servicin...

Page 48: ...48 PARTS Electric Model...

Page 49: ...49 Electric Model...

Page 50: ...50 Electric Model...

Page 51: ...0121 TERMINAL BLOCK ASM 1 46 WE04X10122 GROUND LEAD 1 51 WE08X10063 HARNESS PWB 1 52 WE08X10060 CABLE ASSEMBLY 1 53 WE08X10061 CABLE ASSEMBLY 1 111 WE01X10179 BRACKET LH 1 112 WE01X10180 BRACKET RH 1...

Page 52: ...23 WE02X10061 SCREW TAPPING PAN HD 2 424 WE12X10012 PULLEY IDLE 1 425 WE01X10195 SHAFT ASSEMBLY 1 426 WE02X10062 SCREW 1 427 WE01X10196 SPRING COIL 1 430 WE01X10197 CLAMP 2 450 WE17X10008 MOTOR ASM BL...

Page 53: ...53 Gas Model...

Page 54: ...54 Gas Model...

Page 55: ...55 Gas Model...

Page 56: ...B 1 52 WE08X10060 CABLE ASSEMBLY 1 53 WE08X10061 CABLE ASSEMBLY 1 111 WE01X10179 BRACKET LH 1 112 WE01X10180 BRACKET RH 1 113 WE01X10181 MOUNTING BRACKET 1 114 WE14X10053 CAP COVER 1 115 WE01X10210 CA...

Page 57: ...MOTOR ASM BLOWER 1 461 WE13X10025 BRACKET MOTOR 1 471 WE04X10114 THERMISTOR ASSEMBLY 1 472 WE04X10115 THERMOSTAT ASSEMBLY 1 473 WE14X10060 BLOWER HOUSING 1 481 WE16X10002 BLOWER WHEEL 1 482 WE02X10063...

Page 58: ...ace 4 Insert the screws about halfway into the TOP holes for each hinge on the opposite side where you removed the filler plugs Apply firm pressure to get the screw started in new holes 5 Loosen the t...

Page 59: ...til the top hinge and the bottom hinge are resting on the top screws 12 Remove the remaining screws from the side of the opening from which the door was removed With these screws secure each hinge at...

Page 60: ...washer and dryer are unplugged Turn both the home hot and cold water valves to the off position Turn the home gas shut off valve to the off position for gas dryer models Tools Needed 2 Screwdriver Tow...

Page 61: ...the ribbon at the right of the dryer control board by pulling the connector at the end of the ribbon off the metal pins Note Do not disconnect any other wires from the dryer control board Screws Rear...

Page 62: ...y sliding the ribbon connector on the new backsplash onto the metal pins on the control board and pushing in Make sure the ribbon is not twisted before inserting the connector 15 Place the gray wire f...

Page 63: ...place 21 Place the gray wire from the serial port under the strain relief of the new backsplash Screw Screw Rear of Washer 24 Reconnect house utilities 25 Plug the washer and dryer back in 19 Connect...

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