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GE WCVH4800KWW Service Manual
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GE WCVH4800KWW Service Manual

24inch front load washer
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See also: Installation Instructions & Owner's Manual , Manual
GE 24inch Front Load Washer
Models:
WCVH4800KWW
WCVH4815KMS
(MS = Metallic Silver)
Service Guide --- 31-9195
GWS 11/12/09

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Summary of Contents for GE WCVH4800KWW

  • Page 1 GE 24inch Front Load Washer Models: WCVH4800KWW WCVH4815KMS (MS = Metallic Silver) Service Guide --- 31-9195 GWS 11/12/09...
  • 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, cut resistant (Dyneema®) gloves & steel toe shoes for all repairs. Plano Safety Glasses Steel Toe Shoes Dyneema® Cut Resistant Glove Prescription Safety Glasses Safety Glasses must be compliant with ANSI Z87.1-2003...
  • Page 4 Warranty Copyright 2009...
  • Page 5 Nomenclature Copyright 2009...
  • Page 6 Model / Serial Number Plate • Model / Serial plate located behind door on upper left side & also on the rear of the machine to the left of the water valves. NOTE: Touch up Paint for Metallic Silver Models – WR97X10124 Copyright 2009...
  • Page 7 Mini-Manual • Mini-Manual is in a plastic envelope and taped to dispenser assembly under washer top. Copyright 2009...

  • Page 8: Demo Mode

    Demo Mode To enter DEMO Mode: 1. Unplug the washer. 2. Open the door. 3. Wait 30 seconds. 4. Restore power to washer. 5. Press Start / Pause 4 times with 30 seconds of applying power. In demo mode, the only components that will function are the control LEDs.
  • Page 9 Control Panel Selections BASKET CLEAN --- To clean drum and reduce odor. NOTE: Basket Clean is a special cycle used to clean the washer drum and reduce odor. DO NOT add garments to this cycle. Remove detergent cup and add one cup of bleach or other commercially available product manufactured for this purpose, such as Tide®...
  • Page 10 Basket Clean - Cycle Definition Customer adds 1 cup of bleach into the basket • • Customer activates the Basket clean Cycle • One cleaning cycle with bleach followed by 2 rinse cycles and final spin • Total cycle time 1 hour 26 minutes Rinse #1&2 Spin Wash...

  • Page 11: Wash Cycle Defaults

    Wash Cycle Defaults • When a cycle is initially set, the default cycle settings are displayed. • The following table displays the default selections for each cycle. Extra Delay Default cycle Cycles Soil Spin Temp Signal Rinse Start time Whites/Heavy Heavy High On/Off...

  • Page 12: Wash Cycle Options

    Wash Cycle Options • Depending upon the selected wash cycle, not all of the wash cycle selections shall be accessible. • The following table outlines allowable cycle ranges. Extra Delay Cycles Soil Spin Temp Signal Rinse Start Whites/Heavy Selectable On/Off Selectable Duty Tap Cold, Cold,...
  • Page 13 Spin Speeds Speed No Spin 400 +/- 50 RPM Medium 650 +/- 50 RPM High 1200 +/- 50 RPM Extra High 1400 +/- 50 RPM Copyright 2009...
  • Page 14 Cycle / Time Chart NOTE: Total cycle times (grey shaded areas) are cycles times without the second rinse (yellow shaded areas) added. Copyright 2009...

  • Page 15: Out Of Balance Mode

    Out of Balance Mode Sensing unbalance uses RPM fluctuation so that it can check to take balance or not. - Sensing Resonance use duty data of motor control so that it can check to take balance or not. Copyright 2009...
  • Page 16 Out of Balance Mode 1. Before spinning, control will initiate a short agitate cycle to re-distribute clothes. 2. Spin cycle begins. At @ 100RPM, control will sense for an unbalanced load. 3. If an unbalance is sensed, the control will go back to step #1, add time to timer and try again.

  • Page 17: Dispenser Drawer

    Dispenser Drawer • Remove detergent insert (left side) for powder detergent. • Liquid bleach only. (right side) • Press down on tab in softener compartment to release drawer for removal. Copyright 2009...
  • Page 18 Dispenser Drawer View of dispenser with drawer removed. Copyright 2009...
  • Page 19 Machine Top (Rear of Machine) To lift washer top, first remove two large Phillips screws from both rear corners. Copyright 2009...
  • Page 20 Machine Top After removing screws, slide top to the rear @ one inch. Lift top from washer. Copyright 2009...
  • Page 21 Top Component View Hot Water Valve Cold Water Valves (2) Noise Filter Water Level Sensor Dispenser Vent Hose Dispenser Assembly Copyright 2009...

  • Page 22: Water Valves

    Water Valves Hot Valve Cold Valve – Bleach Dispenser Cold Valve Flow Rates: • Hot & Cold Valves --- 2.6 gal/min. • Bleach Valve --- 1.1 gal/min. Copyright 2009...
  • Page 23 Water Valves • Hot water valve is a single valve and the cold water is a double valve assembly. • Secured to the rear of the machine with Phillips screws. Copyright 2009...
  • Page 24 Water Temperature Selections Temperature Temperature Setting Tap Cold No control Cold 60°F +/- 5°F Warm 90°F +/- 5°F 110°F +/- 5°F Sanitize 153°F +/- 5°F • Water temperature selections and approximate corresponding temperatures. • Temperatures are maintained by thermistor feedback to main control board and by the control activating the appropriate water valve.

  • Page 25: Water Level Sensor

    Water Level Sensor • Sensor frequency can be read at the pink & Yellow wires to the sensor (pins 1 & 2). • The control will read out frequency on the display in the t05 test. Copyright 2009...
  • Page 26 Water Level Sensor • To remove sensor, reach up behind frame with a pair of needle nose pliers and squeeze two tabs holding sensor behind frame opening. Copyright 2009...
  • Page 27 Water Level Sensor Main PC Board Water Level Sensor 20KHz ~ 26KHz Over Flow Level 22KHz @ Wash Level 24.2KHz Pump Control Heater safety Level 24.8KHz Relay Reset Level 25.34KHz Pump • Sensor frequency will vary depending upon water level. •...
  • Page 28 Water Level Sensor – Approximate Water Levels Outer Tub Wash Basket Over Flow Level 22KHz @ Wash Level 24.2KHz About 600Hz Heater safety Level 24.8KHz Reset Level 25.34KHz Heater Copyright 2009...

  • Page 29: Noise Filter

    Noise Filter L1 & N In L1 & N Out • The noise filter is held to the right, rear corner of the frame with a bolt and a threaded shaft. Copyright 2009...
  • Page 30 Drain Pump Clean Out • Pry open pump access door on front of washer to access the pump drain hose and filter assembly. Copyright 2009...
  • Page 31 Drain Pump Clean Out • Rotate hose cap approximately ¼ turn counter-clockwise to release cap from frame. • Pull hose out and extend about 6 inches. Copyright 2009...
  • Page 32 Drain Pump Clean Out • Have the appropriate container at the ready. • Pull cap from drain hose. • Allow water to drain from the pump before opening filter assembly. Copyright 2009...
  • Page 33 Drain Pump Clean Out • Unscrew filter assembly from pump and clean debris as needed. Copyright 2009...

  • Page 34: Drain Pump

    Drain Pump Remove Screw To remove drain pump: • Remove washer top, control panel and washer front. • Drain water from pump assembly. • Remove single Phillips screw securing pump to washer front frame. • Push pump back through opening in frame. Copyright 2009...
  • Page 35 Drain Pump • Lift rear of pump to disengage locator tabs at bottom of washer. Copyright 2009...
  • Page 36 Drain Pump Air Inlet Hose from Tub Front Inlet Hose from Tub Pump Outlet Hose Cleanout Drain Hose Connection (Left Side Rear of Pump) • Remove the four hoses connected to pump & lift out from washer frame. NOTE: Air inlet port helps reduce cavitations noise. Copyright 2009...
  • Page 37 Drain Pump Check Valve NOTE: Pump outlet port incorporates a check / one way valve to prevent drain water from re-entering pump from drain hose or house drain system. Copyright 2009...

  • Page 38: Control Panel

    Control Panel Disconnect To remove control panel assembly from washer: • After lifting off washer top, remove 2 Phillips screws securing panel at the top of the frame. • Disconnect single connector to main PCB board. Copyright 2009...
  • Page 39 Control Panel • Next, remove 2 Phillips screws from behind dispenser drawer. • Lift panel assembly from washer. Copyright 2009...
  • Page 40 Control Panel To separate control board from housing assembly: • Pull off knob & remove 4 Phillips screws securing board to housing. • Lift control board from plastic housing. Copyright 2009...
  • Page 41 Control Panel Interconnect Cable • Interconnect Cable comes with the control board when ordered or can be ordered as a separate component. Copyright 2009...
  • Page 42 Door The door hinge is attached to the front panel with 2 Phillips screws and 3 hooks that engage 3 cutouts in the front panel. To remove the door components: • Remove the 2 Phillips screws that hold the hinge to the front panel. •...

  • Page 43: Door Lock Assembly

    Door Lock Assembly • The door lock assembly is held to the front panel with 2 Phillips screws. • The door lock is accessed from the front of the washer when the right side of the gasket is partially pulled back. Copyright 2009...
  • Page 44 Door Lock Assembly To remove the door lock assembly: • Use long nosed pliers to grasp the wire loop at the spring location and expand it to clear the gasket. • Remove the spring and wire from the gasket. Copyright 2009...
  • Page 45 Door Lock Assembly • Pull the right side of the gasket away from the front panel. • Remove the 2 Phillips screws that hold the door lock to the front panel. • Pull the door lock to the opening and disconnect the 2 wire harnesses. Copyright 2009...
  • Page 46 Door Lock Assembly Door mounting Pins 1 2 3 Pins 1 • Switch “A” (Pins 3 & 4) is closed when the door is closed. • Cycle will not start should this not occur. Copyright 2009...
  • Page 47 Door Lock Release • To release door should a system failure occur: • Remove washer top, remove control panel, remove two Phillips screws securing top of front panel & pull front panel a few inches outward at top. • Reach down from the top with the back of your hand against the front panel. •...

  • Page 48: Door Sensing Switch

    Door Sensing Switch • The door sensing switch provides feedback to the main control board as to the status of the washer door. • If the switch fails to close, cycle will not start. Copyright 2009...
  • Page 49 Door Sensing Switch Removal To remove the door sensing switch: • Open the door. • Using a small flat blade screwdriver, carefully pry out the left side of the switch to locate the locking tab. • Press the locking tab in and pull the switch from the front panel. •...
  • Page 50 Rear Cover • To remove rear cover, first take out four Phillips screws. • Then flex cover top to bottom to release from tabs. Copyright 2009...
  • Page 51 Rear Component View Motor Thermistor Heater Copyright 2009...

  • Page 52: Motor Assembly

    Motor Assembly Rotor Rotor Bolt Stator Connector Hall Sensor Connector WARNING: The rotor is not grounded. Unplug the washer before servicing to avoid electrical shock. Copyright 2009...
  • Page 53 Rotor Bolt • Remove the rotor Bolt using a 19mm (WX05X15000) socket and socket wrench or impact gun. • Note: Use a rubber mallet, if needed, to tap the wrench to break the bolt free. • Pull the rotor away from the drive shaft. •...
  • Page 54 Rotor Bolt If necessary, to lock the rotor in place while removing rotor bolt, utilize a large Phillips screwdriver inserted into one of the three round openings as shown. Copyright 2009...
  • Page 55 Motor Assembly The Stator windings have an approximate resistance of 9.5Ω between any two of the three wires. • Red to White – 9.5Ω • Red to Blue – 9.5Ω • White to Blue – 9.5Ω The Hall Sensor measures approximately 4.7KΩ...
  • Page 56 Motor Assembly Stator Stator Connector Hall Sensor Connector • To remove stator, start by removing wiring to stator and Hall Sensor. • Remove the six 10-mm hex head screws and washers that hold the stator in place. • Carefully pull the stator away from the outer tub. Copyright 2009...
  • Page 57 Motor Assembly • Stator and Hall Sensor are separate components. • To separate Sensor from the Stator, remove two small Phillips screws securing components. • Pull Sensor straight up to disengage. Copyright 2009...
  • Page 58 Motor Assembly / Hall Sensor • The Hall effect sensor measures the motor rpm. • The Hall sensor measures approximately 4.7K Ω between the pink and blue wires and the pink and red wires, and 9.4K Ω between the blue and red wires.

  • Page 59: Tub Assembly

    Motor Assembly Motor Cover / Shield Inner Basket Shaft Bearing / Seal Assembly • Bearing / Seal Assembly comes as part of the lower outer tub assembly. Copyright 2009...

  • Page 60: Front Panel

    Front Panel • The front panel is hung on 3 hooks attached to the bottom of the cabinet and held in place with 4 Phillips-head screws. • The door lock and door sensing switch are attached to the front panel. •...
  • Page 61 Front Panel WX05X10016 Note: The following step will require raising the front of the washer approximately 2 inches. It may be helpful to use prop block WX05X10016), to safely raise the washer. • Raise the front of the washer approximately 2 inches. •...
  • Page 62 Front Panel • Remove washer top, control panel, wire harness from door sensing switch, wire and spring securing gasket to front panel and door lock switch from front panel. • Remove two large Phillips screws securing front panel to frame. •...
  • Page 63 Front Component View Main PCB Drain Pump Damper Pump Drain Hose Cap Copyright 2009...
  • Page 64 Damper Shock Assemblies • Each of the two dampers are attached to the outer tub with a 10-mm hex head screw and secured to 2 flanges in the bottom of the cabinet with a 13-mm hex head bolt. Copyright 2009...

  • Page 65: Heater Assembly

    Heater Assembly (Rear of Machine) • The heater assembly is held in place by a bracket attached to the outside of the outer tub and a 10-mm nut which compresses a rubber gasket to the tub opening. • When the 10-mm hex nut is tightened, it squeezes the rubber gasket between 2 mounting plates to seal the heater assembly to the opening of the tub.
  • Page 66 Heater Assembly Heating Element Specifications: • 120 VAC • 900 Watts • Approximately 7.5 Amps • Approximately 16Ω Copyright 2009...

  • Page 67: Heater Assembly Removal

    Heater Assembly Removal • Loosen the 10-mm hex nut until it is flush with the end of the stud. • Push inward on the 10-mm hex nut to relax the rubber gasket. • Remove the 10-mm hex nut from the heater shield. •...
  • Page 68 Heater Algorithm Start Washing Wash Time > 3 Min • Heater operation follows the algorithm to the right. Heater On • Heater is operational only during the sanitize cycle. • Timer does not pause to allow heater Target Temperature to heat the wash water to the Reached sanitize temperature (@ 153°...
  • Page 69 Thermistor • The control uses a water temperature sensor (thermistor) to regulate the wash water temperature. • The thermistor has a negative temperature coefficient (as temperature increases, resistance decreases). • The thermistor is inserted in a grommet that is located below the motor, and is accessed from the rear of the washer.
  • Page 70 Thermistor Testing • Thermistor can be checked at it’s disconnect plug for resistance. • It should read approximately 14KΩ at room temperature. Copyright 2009...
  • Page 71 Thermistor Removal • To remove thermistor, disconnect the thermistor wiring harness. • Grasp and pull the thermistor straight out from the grommet. • Thermistor – WH12X10447 Grommet – WH01X10490 Copyright 2009...
  • Page 72 Thermistor Temperature / Resistance Chart TEMP (°F) MIN (KΩ) AVG (KΩ) MAX (KΩ) 54.874 58.722 62.57 42.961 45.778 48.596 33.9 35.975 38.05 26.977 28.516 30.055 21.616 22.763 23.91 17.421 18.279 19.137 14.128 14.772 15.417 11.497 11.981 12.464 9.421 9.786 10.15 7.772 8.047 8.322...
  • Page 73 Main PC Board Hook Cover Filter Hook • The main PCB receives commands from the control board and controls washer operation. • The main PCB is enclosed in a protective housing and cover, located inside the cabinet, under the left side of the outer tub. •...
  • Page 74 Main PC Board To remove the Main PCB: • Remove the 4 Phillips-head screws that attach the main PCB to the rear of the cabinet. • Lift up the main PCB to unhook it from the rear of the cabinet and to clear the post from the cutout in the bottom of the cabinet.
  • Page 75 Main PC Board • Rotate the main PCB 90° clockwise and maneuver it out from the cabinet. Copyright 2009...
  • Page 76 Main PC Board • Pry open cover to access components and plug connections. Copyright 2009...
  • Page 77 Main PC Board CN10 Door Sensing Switch Hall Sensor Control Board CN11 Thermistor Pressure Sensor Control Board Motor Power Door Lock Solenoids Drain Pump CN12 Water Valves L1 In Door Lock Reactor Switches Heater / L1 Heater / Neutral Copyright 2009...

  • Page 78: Tub Gasket

    Tub Gasket • The front of the tub gasket is secured to the front panel flange by a spring and wire located in the lower fold of the gasket. • The back of the tub gasket is attached to the outer tub lip with a wire and bolt gasket clamp.
  • Page 79 Tub Gasket • After removing clamps, pull the tub gasket from the outer tub lip. Note: When installing the tub gasket on the outer tub, align the tab on the gasket with the arrow located on the front of the outer tub before installing and tightening the clamp bolt.

  • Page 80: Outer Tub Assembly

    Outer Tub Assembly • The outer tub assembly is constructed in two halves and contains the wash basket. • The bearing and seal assembly is part of the outer tub rear half. • The outer tub assembly is supported by 2 suspension springs and 2 dampers.
  • Page 81 Outer Tub Assembly Removal Disconnect Disconnect WARNING: The outer tub assembly is heavy and requires two people to remove it from the washer cabinet. Care should be taken when removing and installing the outer tub assembly. • After removing the top cover, control panel, front panel and back cover, drain the washer using the pump drain hose.
  • Page 82 Outer Tub Assembly Removal Disconnect Remove Disconnect Disconnect Remove • Disconnect the thermistor wire harness. • Disconnect the stator and Hall sensor wire harnesses from the motor. • Remove the Phillips-head screw that attaches the ground screw to the motor cover. •...
  • Page 83 Outer Tub Assembly Removal Notch • Remove the dispenser vent hose from the outer tub: a. Squeeze the clamp and slide it back. b. Carefully break the vent hose loose by inserting a small flat-blade screwdriver under the hose to break the seal. c.
  • Page 84 Outer Tub Assembly Removal Remove Hose • Remove the dispenser from the front and left side braces, then remove the • Remove the pressure sensor dispenser outlet hose from the hose from the pressure sensor. dispenser. • Place the dispenser assembly over the left rear corner of the washer.
  • Page 85 Outer Tub Assembly Removal Remove Remove the three 10-mm hex head bolts and washers that attach each of the 2 counterweights to the front of the outer tub. Copyright 2009...
  • Page 86 Outer Tub Assembly Removal Turn Clockwise to Loosen Air Chamber Inlet Hose Tub Outlet Hose Pump Air Inlet Hose • Turn the Phillips-head clamp screw clockwise to loosen the clamp that secures the tub outlet hose to the outer tub. •...
  • Page 87 Outer Tub Assembly Removal • Remove the 10-mm hex head screw and washer from the top of each Damper Upper Screw damper. • Lift the rear of the tub assembly to maintain a level position, then pull each damper straight out from the outer tub.
  • Page 88 Outer Tub Assembly Removal • Lift the outer tub assembly up, then release the 2 suspension springs from the slotted plastic inserts in the cabinet top braces. • Carefully remove the tub assembly out the front of the cabinet, then place the tub assembly on a protective surface with the air chamber at the 2 o'clock position, as shown below.
  • Page 89 Outer Tub Assembly Removal Note: When re-installing the outer tub assembly, install each suspension spring with the red paint facing toward the front of the washer. Copyright 2009...

  • Page 90: Wash Basket

    Wash Basket • The wash basket is contained inside the outer tub. • To remove the wash basket it will become necessary to separate the outer tub halves. Copyright 2009...
  • Page 91 Wash Basket To remove the wash basket: • After removing the motor assembly, suspension components, counter weights and gasket, remove the tub assembly from the washer cabinet. • Carefully position the tub assembly, motor side down, on a clean, protective surface.
  • Page 92 Wash Basket • Separate and remove the tub front from the tub rear. • Pull the wash basket out from the tub rear. • Wash basket can be ordered as a complete assembly. Copyright 2009...

  • Page 93: Service Mode

    Service Mode TO ENTER SERVICE MODE: Press (while unit is in idle): Signal – Extra Rinse – Signal – Extra Rinse TO EXIT SERVICE MODE: Press Power Button or no button pressed for 15 minutes. General Navigation - Upon entering the service mode, the SSD shall display the first test number t01.
  • Page 94 Service Mode Selections Verifies operation of the individual water valves Copyright 2009...
  • Page 95 Service Mode Sequences Copyright 2009...

  • Page 96: Error Codes

    Error Codes • Out of Machine was unsuccessful in recovering from Balance an out of balance condition during the final spin error and 34 minutes was added to the cycle timer. Copyright 2009...
  • Page 97 Schematic Copyright 2009...
  • Page 98 Copyright 2009...
  • Page 99 END OF PRESENTATION THANK YOU FOR YOUR ATTENTION ……. Copyright 2009...

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