GE GTUP270EMWW Service Manual

GE GTUP270EMWW Service Manual

24” & 27” unitized laundry centers
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24" & 27" Unitized Laundry Centers
GTUP270EMWW
GTUP270GMWW
GTUP240EMWW
GTUP240GMWW
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Summary of Contents for GE GTUP270EMWW

  • Page 1 24” & 27” Unitized Laundry Centers GTUP270EMWW GTUP270GMWW GTUP240EMWW GTUP240GMWW...
  • Page 2 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.
  • Page 3 GE Factory Service Employees are required to use safety glasses with side shields, safety gloves & steel toe shoes for all repairs. Plano Safety Glasses Dyneema® Cut Steel Toe Shoes Resistant Glove Prescription Safety Glasses Safety Glasses must be VR Gloves – provide shock protection compliant with ANSI Z87.1-2003...
  • Page 4: Model/Serial Tag & Mini-Manual

    Product Information Model/Serial Tag Located inside dryer on front panel Mini-Manual Taped on the inside of the service panel Copyright General Electric 2010...
  • Page 5: Dryer 27" Design Differences

    Unitized Laundry Center DRYER 27’’ Design Differences 27” Old 27” • Drum capacity 5.9 ft • Drum capacity 5.7 ft • Drum access area: 303 in • Drum access area: 234 in • Heater power: 5400W • Heater power: 4500W •...
  • Page 6 Unitized Laundry Center 27” Washer Design Differences 27” Old 27” • Capacity 3.18 ft • Capacity 2.7 ft • Index rinse( & Deep • Deep rinse only w/basket spin) rinse • Manual fill capability • Adaptive fill and Manual Fill •...
  • Page 7 Unitized Laundry Center DRYER 24’’ Design Differences New 24” Old 24” • Capacity 4.4 cu. ft . • Capacity 3.4 cu. ft . • Drum access area: 150 in • Drum access area: 133 in • 4 Heat levels available •...
  • Page 8 Unitized Laundry Center 24” Washer Design Diferences New 24” Old 24” • Capacity 1.87 ft • Capacity 1.75 ft • Index rinse( & Deep • Deep rinse only w/basket spin) rinse • Manual fill capability • Adaptive fill and Manual Fill •...
  • Page 9 Product Controls Water Level Temperature Programs T Board Start Button Timer • Cold - 60 • Automatic • OFF 2 buttons (if Adaptive • Cool - 70 • Heavy duty • Start / Pause Fill is needed) • Warm – 80 •...
  • Page 10 Washer Components Suspension Rods Over flow pipe Motor Capacitor Pressure Switch Dome & Hose Motor & Drain Pump Transmission Copyright General Electric 2010...
  • Page 11: Components View

    Gas Dryer Components High Limit Thermostat Safety Thermostat Control Inlet Thermostat Flame Detector Motor & Blower Assy Gas Valve Outlet Thermostat Copyright General Electric 2010...
  • Page 12 Electric Dryer Components Control Inlet Thermostat Safety Thermostat High Limit Thermostat Inner Heater Coils Outer Heater Coil Copyright General Electric 2010...
  • Page 13 Control Panel Access To access the service panel; remove the two Phillips screws at the top left and right of the panel. Lift up on the panel and pull forward to release the panel from the cabinet. The mini manual is taped to the backside of the service panel. Mini Manual Copyright General Electric 2010...
  • Page 14 Control Panel Access The washer control and pressure switch are accessible after removing the service panel. To access the dryer harness wiring connectors; remove two Phillips screws from the heat shield and pull the shield forward to remove. Heat Shield Dryer Harness Connectors Washer...
  • Page 15 24” Control Panel Access To access the washer/dryer controls; remove five Phillips screws, one on each side of the control panel and three on the front opening. Remove the dryer control knob and tilt the panel forward. Copyright General Electric 2010...
  • Page 16 27” Control Panel Access To access the washer/dryer controls; remove six Phillips screws, two on each side of the control panel and two on the front bottom door opening. Remove the dryer control knob and tilt the panel forward. Copyright General Electric 2010...
  • Page 17: Control Panel

    Control Panel To remove the control panel from the cabinet; slide the panel to the right to release the locking tabs from the slots. The washer controls are installed on the control panel, dryer timer and start switch remain on the dryer front panel. Dryer Timer &...
  • Page 18 Control Panel To replace any of the washer controls; remove the selection knob from the front, lift the locking lever and rotate the control to the left to release from the control panel. Copyright General Electric 2010...
  • Page 19 Control Panel To replace the dryer timer or start switch (Timer motor dropping resistor EL); remove two Phillips screws from the control bracket and remove the bracket from the front panel. Both the dryer timer and start switch are twist lock connected to the control bracket. Gas Model Electric Model Dropping Resistor...
  • Page 20 Control Panel The timer dropping resistor (on electric models) controls the run time during automatic cycles. This 4500 ohm resistor is in series with the timer motor, when the thermostat trips turning off the heat – the resistor drops the 240 vac heater circuit to 120 vac to run the timer motor.
  • Page 21 Dryer Front Panel Removal To remove the dryer front panel; unplug the harness connectors behind the heat shield. Remove the four Phillips screws from the front of the panel and three ¼” hex head screws from the panel top. Pull out on the bottom of the panel and lift to release the panel from the dryer drum.
  • Page 22 24” Dryer Front Panel Drum Bearing Lint Filter – not on 27” models Drum Felt Door Switch Air Duct Copyright General Electric 2010...
  • Page 23 24” Dryer Front Panel The lint filter is housed in the dryer door. To clean the lint filter, slide the cover from the screen mesh filter and wipe off the lint from the mesh screen after each cycle. Screen Mesh Lint Filter Lint Filter Cover Copyright General Electric 2010...
  • Page 24 27” Dryer Front Panel The lint filter is housed in the dryer front. To clean the lint filter, slide the filter up from the front panel and wipe off the lint screen after each cycle. Standard Lint Filter Copyright General Electric 2010...
  • Page 25 Dryer Front Panel Installation When removing or re-installing the dryer front panel; remove the dryer door. Remove the bottom screw from each hinge and loosen the second screw, lift the door off of the dryer front. Removing the dryer door allows for easier manipulation of the dryer front as you place the dryer front on the top of the cabinet and reach through the door opening to push up on the dryer drum for...
  • Page 26 Dryer Drum Removal To remove the dryer drum; lift up on the drum and push the idler pulley to the right locking it onto the motor bracket, releasing tension on the belt for removal. The dryer drum can then be removed from the dryer by pulling it forward. When re-installing the dryer belt, position the belt on the drum and pulleys and unlock the idler to tension the belt.
  • Page 27 Dryer Thermostats The dryer thermostats can be replaced by removing a single Phillips screw and removing the stat from a locking tab. The control inlet thermostat on gas models utilize two locking tabs instead of a Phillips screw. Copyright General Electric 2010...
  • Page 28 Motor & Blower The blower wheel is mounted to the motor shaft with an integral threaded nut. To remove the blower wheel; lock the motor shaft and turn the blower nut CCW with a 15/16” (24mm) socket. Copyright General Electric 2010...
  • Page 29 Motor & Blower To remove the motor/blower assembly; remove three Phillips screws from the front blower housing and the control thermostat. Remove three Phillips screws from the rear motor bracket, disconnect the motor harness wire tie and move the assembly to the rear of the dryer.
  • Page 30 Motor & Blower To replace the drive motor; you can pull the assembly as previously mentioned or, loosen the front motor clamp and compress the rear clamp to unsnap it from the rear motor bracket. Remember to unscrew the blower wheel. Rear Clamp Copyright General Electric 2010...
  • Page 31 Belt Switch The belt switch is mounted to the left side of the motor plate and is attached with two Phillips screws. This switch cuts power to the motor in the event the belt breaks. Copyright General Electric 2010...
  • Page 32 Safety Fuses - Electric Dryer Both line wires to the dryer are over current protected by a 30 amp cartridge type fuse. Before removing the access panel make sure power is disconnected to the dryer. If either of these fuses are open, check resistance line to line and each line to ground for possible shorts.
  • Page 33: Gas Valve

    Gas Valve To remove the gas valve assembly; the gas needs to be turned off and disconnected from the home gas line. Disconnect the wiring from the valve, igniter and the flame detector. Remove two Phillips screws from the valve bracket at the base. Copyright General Electric 2010...
  • Page 34 Gas Valve Remove the two Phillips screws holding the combustion chamber to the dryer base and carefully pull the chamber to the front of the dryer taking care not to break the igniter. Lift and remove the combustion chamber. Copyright General Electric 2010...
  • Page 35 Gas Valve Remove the two Phillips screws holding the valve gas line to the dryer base. Pull the gas valve forward while lifting the gas line through the dryer base. Copyright General Electric 2010...
  • Page 36 Igniter & Flame Detector Gas Dryer The igniter and flame detector are held by single Phillips screws on the right side of the gas valve and combustion chamber. Copyright General Electric 2010...
  • Page 37 Electric Dryer Heater Housing The electric heater can be replaced by removing four Phillips screws in the housing after removing the thermostats and heater wiring. Copyright General Electric 2010...
  • Page 38: Washer Front Panel

    Washer Front Panel To remove the washer front panel; insert a putty knife between the washer top and front panel 4 1/8” in from each side. While pressing in on the locking tabs pull the washer front panel forward to release. Lift up on the front panel to release it from the bottom front two retaining hooks.
  • Page 39 Washer Top To remove the washer top; remove the two ¼” hex screws from the front panel brackets and lift up from the front. This allows access to the lid lock and the lid switch. Lid Lock Assembly Lid Switch Copyright General Electric 2010...
  • Page 40: Washer Top Lid Lock

    Washer Top Lid Lock To remove the lid lock assembly; remove two T15 Torx screws from the washer top and pull the lid lock from the washer top. Lid Switch Lid Lock Assembly Copyright General Electric 2010...
  • Page 41 Washer Top Lid Lock - Operation Any time the lid is in the down position the lid actuator presses down on the lid lock lever. The locking slide then moves over into the actuator to lock the lid. To test the machine with the lid up;...
  • Page 42 Washer Top Lid Lock - Operation When the washer goes into spin or rinse, the control activates the thermal actuator and the lid lock PTC heater (Positive Temperature Coefficient) from control terminals 2 & 6. The PTC heats the lock bimetal which in turn puts downward pressure on the locking pin.
  • Page 43 Washer Top Lid Lock - Operation Washer Top Lid Lock - Operation The control then sends power (pins 6 & 7 momentarily) to the locking solenoid to rotate the lock cam which allows the black locking pin to drop and secure the locking slide so the lid can not be opened.
  • Page 44 Washer Top Lid Lock - Operation If the lid is down and the locking pin drops, contacts 4 to 5 inside the lid lock assembly complete a circuit from pins 1 to 2 at the main control. The control will be able to activate the drive motor for spin.
  • Page 45 Washer Top Lid Lock - Operation The lid will remain locked until the end of the spin cycle and the control has received 0 rpm feedback from the motor Hall sensor. The control will then unlock the lid by energizing the lock solenoid through pin 7 to 6. Locking Pin Up Switch Contact 2 3 4 5...
  • Page 46 Washer Top Lid Lock - Operation If the lid lock contacts 4 to 5 do not close; the control will pulse the locking solenoid five times to attempt to lock the lid. If after five attempts the lock contact has not closed, the control will pause for 4.25 minutes and attempt the lock routine again (3x.) If the lid will not lock, the control will enter a failure mode and display a failure code to the user.
  • Page 47 Washer Main Control Board – Lock Circuits #1 Motor Line & Lock #2 Motor Line & PTC #6 Neutral #7 Lock Solenoid Copyright General Electric 2010...
  • Page 48 Washer Top Lid Switch To remove the lid switch; press in on the front locking tab to release the lid switch and pass it through the opening on the washer top. The complete washer top can then be removed from the unit. Locking Tab Copyright General Electric 2010...
  • Page 49 Washer Top Lid Switch The lid switch is a magnetically operated reed switch which is closed by a magnet located on the lid. The lid switch interrupts all functions of the machine when the user opens the lid during operation. The cycle light will flash when the lid is open. Copyright General Electric 2010...
  • Page 50 Water Pressure Sensor The water pressure sensor is mounted to the left of the washer control board with a single ¼” hex head screw. The sensor operates on low voltage dc which can be read from the control board connector J10. The voltage will increase from 1.2 vdc (empty) to 3.6 vdc (full) across terminals 1-2, Tan to Violet.
  • Page 51 Washer Agitator Removal To remove the agitator; pull the fabric softener dispenser from the top of the agitator. Using a 13”-15” socket extension, remove the 3/8” (10mm) hex bolt from the bottom inside of the agitator (CCW.) Lean the washer tub forward and use an agitator pull strap to remove.
  • Page 52 Washer Tub - Spin Basket To remove the spin basket; disconnect the two front suspension rods by lifting up the tub and releasing the support rods, tilt the washer tub forward. Remove the top front cabinet frame by removing the four ¼” hex head screws on each side of the frame. ¼”...
  • Page 53: Washer Tub - Spin Basket

    Washer Tub - Spin Basket Unsnap the tub cover from the top of outer tub and remove. Using a 1-11/16” impact socket or tub nut spanner wrench, remove the basket nut. (Clockwise to loosen.) Lift the basket from the outer tub. When reinstalling the basket nut - torque to 85 foot pounds.
  • Page 54 Washer Outer Tub To remove the outer tub; disconnect the motor harness, wax motor harness and ground wire. Pry down on the harness tie to remove the harness from the frame. Disconnect the drain hose from the bottom of the tub by loosening the hose clamp. Ground Wire Hose Clamp Motor Harness’...
  • Page 55: Washer Outer Tub

    Washer Outer Tub Before completely removing the outer tub; it is best to protect or remove the motor pulley/cooling fan. The blade is made of plastic and can be damaged if the weight of the tub is placed on the fan. To remove the pulley/fan – roll the belt off of the pulley and loosen the 1/8”...
  • Page 56 Washer Outer Tub Disconnect the wire harness ties and pressure switch hose from the outer tub. Lift the outer tub and release the two front suspension rods. Move the outer tub to the rear of the machine at the bottom and tilt it forward to access the rear support rods. Wire Harness Ties Pressure Switch Hose Support Rods...
  • Page 57 Washer Outer Tub Once the outer tub is tilted forward; reach in at the rear and push the rear support rods out of the tub slots to release. The tub assembly can now be rotated forward and out of the cabinet. Copyright General Electric 2010...
  • Page 58 Inlet Water Valve To replace the water inlet valve; the entire unit must be removed from its location. There is a ¼” hex head screw that must be removed from the rear of the appliance. Mounting Screw Copyright General Electric 2010...
  • Page 59 Inlet Water Valve Once the inlet hoses and the mounting screw are removed the water valve can be pulled from the inside of the machine. To access the valve fully, remove the two damper rods at the front of the tub and lean the wash tub forward. Mounting Screw Copyright General Electric 2010...
  • Page 60 Washer Motor & Transmission Drive Belt Shifter Assy. Drive Motor Wax Motor Transmission Spin Tube Service Position Agitator Shaft Copyright General Electric 2010...
  • Page 61 Washer Transmission - Shifter System The transmission mode of operation is controlled by a Thermoactuator or commonly called a wax motor. The wax motor controls a spring loaded actuator fork which determines if the transmission will be in the agitate or spin mode of operation. Thermoactuator Shifter Arm (wax motor)
  • Page 62 Washer Transmission - Shifter System In the normal (deactivated) wash mode, the shifter fork is held in the upward position by the fork spring which releases the drive gear that controls power to the spin tube. In this mode all power is delivered to the transmission agitator shaft. Drive Gear Released Copyright General Electric 2010...
  • Page 63 Washer Transmission - Shifter System In the spin mode, the wax motor receives 120 vac from the control and the lid lock system. The expansion of the wax in the thermoactuator presses on the shifter fork which in turn engages the drive gear for the transmission spin tube. Drive Gear Engaged Copyright General Electric 2010...
  • Page 64 Washer Motor & Transmission The washer drive motor is a variable speed - reversing type motor with rpm feedback to the main board from an internal motor Hall sensor. The motor is attached to the transmission frame with two ½” hex bolts. Copyright General Electric 2010...
  • Page 65 Washer Motor & Transmission The motor brackets are slotted for easy belt removal and installation. Loosen the two ½” motor hex bolts to loosen the belt for service. The proper tension for the belt is ½” deflection when pressing on the belt between the two pulleys. The pulley set screw is accessible after removing the belt.
  • Page 66 Washer Motor & Transmission The motor can be replaced (with difficulty) without removing the washer tub if the installation requires it. To replace the motor; disconnect the washer harness plugs – loosen the motor mounting screws and remove the belt. Remove the two motor screws, motor, motor shield, mounting brackets and isolators.
  • Page 67 Washer Motor & Transmission When the motor is released; disconnect or cut the wire tie holding the motor harness to the base frame. This wire tie comes with the replacement motor. Copyright General Electric 2010...
  • Page 68 Washer Motor & Transmission The washer motor is a variable speed reversible motor. 120 vac line power is supplied by the main board on pin J7-2 (Spin) or J7-1 (Wash) and neutral is switched for both CW & CCW windings from J1 pins 1&2. The motor has an internal Hall sensor which reports rpm information back to the control.
  • Page 69 Washer Motor & Transmission • The speed sensor in the motor operates on a 10 vdc signal from the control board. The control board reads the pulses from the motor to determine proper operation. This signal can not be read with a conventional multi-meter while operating. Besides diagnostic error code mode –...
  • Page 70 Washer Motor & Transmission To replace the transmission; remove the wash tub assembly from the cabinet as previously described. Remove the hex bolts that hold the transmission assembly to the bottom of the tub. (16 bolts for 27” – 14 bolts for 24”) Transfer the motor and belt to the new assembly and reverse the procedure.
  • Page 71 Outer Tub The pressure dome on the right front of the tub has a clean out port on the bottom of the tub. Remove the two spring steel clamps to clean out the dome. Clean the O-ring and cap before reassembly and check for leaks after the repair. Copyright General Electric 2010...
  • Page 72 Outer Tub The overflow hose is clamped on the left front of the tub and incorporates a high loop to minimize suds leak. If it should require replacement or exchange to a new tub the wire ties can be released and reused. Over Flow Hose Hose Clamp Wire Ties...
  • Page 73 Outer Tub To replace the tub support shocks; lift up on the tub and pull the support rod out of the slot in the tub. Lift the rod through the support cup and rotate the rod to align with the slot in the cup to remove. Copyright General Electric 2010...
  • Page 74 Outer Tub The outer tub cover unsnaps from the top of the tub. The seal is contained in the tub cover. When replacing; make sure the bleach dispenser is on the right front and is aligned by looking at the alignment clip on the cover and the tub. Alignment Clip Copyright General Electric 2010...
  • Page 75: Drain Pump

    Drain Pump The drain pump is mounted in the bottom left front of the unit with two ¼” screws. The outlet hose from the bottom of the tub uses a 5/16” hex pipe clamp at the tub and spring clamps at the input and output of the pump. Copyright General Electric 2010...
  • Page 76 Diagnostics The washer control will allow for diagnostics to check for retained error codes and operate individual components in the machine. Errors are displayed either to the consumer (critical error) or to the service tech in diagnostics mode by the led status display.
  • Page 77 Diagnostics - Critical Failure Two errors are deemed critical and will disable the machine until it is serviced. Other errors can self correct and the machine will continue to operate. The critical errors occur with the safety lid lock or lid switch and will be displayed to the consumer.
  • Page 78 Diagnostics - Critical Failure Lid switch failure is triggered by three consecutive wash/spin cycles where the control does not receive feedback from the lid switch. Lid lock failure is triggered by a single spin cycle where the control does not receive feedback from the lid lock.
  • Page 79: Diagnostics – Field Service Mode

    Diagnostics – Field Service Mode To enter field service mode; press the “START” and “FABRIC SOFTENER” buttons at the same time and hold them while rotating the control knob from 12 to position 6. Think of this as a standard clock face, each knob position during diagnostic correlates to a number that aligns to a clock face.
  • Page 80 Diagnostics – Field Service Mode Once you are in field service mode; use the washer control knob to advance through the different modes of operation and extract error codes from the control memory. After selecting a diagnostic function you may have to press the start/pause switch to activate that mode.
  • Page 81 Diagnostics – Field Service Mode = Press Start Switch to Activate Copyright General Electric 2010...
  • Page 82 Diagnostics – Field Service Mode Diagnostic mode allows for operation of individual components; knob positions 7 through 11 select the component for testing and pressing the start button activates the component for testing. To stop any individual test; rotate the washer knob to another position.
  • Page 83 Diagnostics – Error Codes Once in diagnostic mode the error codes can be obtained in knob position 3. The control is capable of storing multiple error codes. To advance through the error codes in event there are more than one, press the start button to scroll through the codes in memory.
  • Page 84 Diagnostics – Error Codes Loose Belt This error code is triggered by feedback from the motor Hall sensor. If the control detects excessive motor speed from the Hall sensor either due to a loose belt or tub nut, this code will be entered into memory.
  • Page 85 Diagnostics – Error Codes Blocked Motor This error code is triggered by feedback from the motor Hall sensor. If the control does not receive pulses from the motor Hall sensor, this code will be entered into memory. The washer will enter a pause state and the user can attempt to restart the cycle.
  • Page 86 Diagnostics – Error Codes Filling Timeout This error code is triggered by feedback from the pressure switch. If the control does not receive a change of pressure from the pressure switch within 3 minutes, this code will be entered into memory. The washer will enter a pause state and the user can attempt to restart the cycle.
  • Page 87 Diagnostics – Error Codes Overflow This error code happens when there is a water level detected that is higher than the expected maximum fill. When this failure is present, the control doesn’t respond to the user until the control exits from this failure due to a normal water level.
  • Page 88 Diagnostics – Error Codes Pump Timeout This failure happens when the timeout is reached for the drain pump time to reach the minimum water level, after 4.25 minutes of pumping and the water level minimum is not reached. After a maximum of 3 attempts to resume the cycle, the control goes to Idle State, the control stores this code in memory.
  • Page 89 Diagnostics – Error Codes Thermistor This failure happens when the control can not detect the ATC thermistor. The ATC is disabled and this failure code is saved on memory. This fault is not displayed to user and the defaults temperatures for filling are, Tap cold - cold valve only Cold - cold valve only Cool - cold and hot valve...
  • Page 90 Diagnostics – Error Codes No Speed This occurs when there is no motor speed sensor feedback. To test it, put the washer in Drain & Spin and wait until the motor starts up. If the motor speed sensor is not operating after 3 seconds, the washer will go to Pause.
  • Page 91: Lid Lock Not Open/Close

    Diagnostics – Error Codes Lid Lock Not Open/Close Lid Lock (Service and Display to user) This failure occurs when the lid can not be locked or unlocked. The control attempts 5 times to release or lock the lid , if the lid is not released, the control goes to pause state and will wait 4.25 minutes to try again to release or lock the lid, if the...
  • Page 92 Diagnostics – Error Codes Lid Switch Occurs when the control runs 3 continuous agitation/spin cycles without receiving the lid switch open signal. This Lid switch error will be reset when the control sees a lid switch transition open/close again. Copyright General Electric 2010...
  • Page 93 Diagnostics – Error Codes Control Board Failure Main Board must be replaced. The triacs that control the motor windings have failed. Copyright General Electric 2010...
  • Page 94 Diagnostics – Error Codes Control Board Failure Main Board must be replaced. This error occurs if the main control detects that the motor controller is not activating the lid lock circuit. Copyright General Electric 2010...
  • Page 95 Diagnostics – Error Codes Control Board Failure Main Board must be replaced. This error occurs if the washer tries to agitate with less than the minimum allowed water level, which would indicate a failed board. Copyright General Electric 2010...
  • Page 96: Error Codes Service Function Table

    Diagnostics – Error Codes To clear error codes from the control memory; rotate the washer knob to position 4 and press and hold the start switch. The indicators will flash during this process. Release the start switch after 3 seconds. Press and hold the start and fabric softener switches while rotating the...
  • Page 97: Main Control Board

    Washer Main Control Board Lid Switch Motor Windings Pressure CCW & CW Switch Motor Line Out Water Valves Wax Motor Lid Lock Control Panel Lid Solenoid Drain Pump 120vac Input Motor Speed Sensor Copyright General Electric 2010...
  • Page 98 Washer Schematic Copyright General Electric 2010...
  • Page 99 Electric Dryer Schematic Copyright General Electric 2010...
  • Page 100 Gas Dryer Schematic Copyright General Electric 2010...
  • Page 101 Copyright General Electric 2010...

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