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GE WCVH4800K, Technical Service Manual

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GE WCVH4800K Technical Service Manual Download Page 42

– 42 –

(Continued Next Page)

Motor Assembly

•  The washer has a direct-drive, pulse-width 

modulation motor that does not utilize a belt, 
transmission, or mechanical brake.  

•  The motor assembly is composed of a coil-

wound stator, Hall sensor, and permanent-
magnet rotor.

•  The motor speed and torque varies when the 

pulse width modulated voltage from the inverter 
changes frequency.  

•  The motor turns in the opposite direction when 

the main PCB reverses electrical polarity to the 
motor.

To remove the motor assembly:

WARNING: The rotor is not grounded. Unplug the 
washer before servicing to avoid electrical shock.

Remove the back cover. (See 

1. 

Back Cover

.)

Disconnect the wiring to the stator and the Hall 

2. 

sensor.

Remove the 19-mm (3/4-in. SAE equivalent) rotor 

3. 

bolt with a socket wrench. (Rotate rotor bolt 
counterclockwise to remove.) 

Note:

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.

Use a rubber mallet, if needed, to tap the 

• 

wrench to break the bolt free. 

Rotor

Hall Sensor Connector

Stator Connecter

Resistance can be measured at the stator wire 
connector. The stator windings have an approximate 
resistance value of 9.5 

Ω 

between any two of the 

three wires:

•  Red to white - 9.5 

Ω

 

•  Red to blue - 9.5 

Ω

•  White to blue - 9.5 

Ω

Rotor Nut

Note: When re-tightening, the bolt should be snug 
plus a quarter of a turn.

 

4.  Pull the rotor away from the drive shaft. 

Summary of Contents for WCVH4800K

Page 1: ...00K WCVH4815K Technical Service Guide November 2009 GE Consumer Industrial WRINKLE FREE COLORS NORMAL WHITES HEAVY DUTY TEMP BASKETCLEAN ACTIVE WEAR DELICATES HAND WASH SPEED WASH RINSE SPIN DRAIN SPIN SPIN DELAY START EXTRA RINSE MY CYCLE PAUSE SIGNAL POWER START SOIL HYDROHEATER TM ENERGY STAR ...

Page 2: ... 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 an...

Page 3: ...5 Error Codes 54 Front Panel 29 Heater Assembly 38 Introduction 5 Line Filter 30 Main PCB 40 Motor Assembly 42 Nomenclature 4 Outer Tub Assembly and Suspension 47 Out of Balance Mode 17 Schematic 56 Service Mode 52 Stacking Instructions 18 Thermistor 39 Top Cover 25 Tub Gasket 45 Using the Washer 11 Warranty 57 Wash Basket 50 Wash Cycle Defaults 14 Wash Cycle Options 15 Washer Components 25 Washer...

Page 4: ...ts every 12 years Example T 1974 T 1986 T 1998 Serial Number The first two numbers of the serial number identify the month and year of manufacture Example AS123456S January 2009 A JAN 2009 S D FEB 2008 R F MAR 2007 M G APR 2006 L H MAY 2005 H L JUN 2004 G M JUL 2003 F R AUG 2002 D S SEP 2001 A T OCT 2000 Z V NOV 1999 V Z DEC 1998 T Nomenclature The nomenclature tag is located behind the door on th...

Page 5: ...or the really tough stains 5 Wash Spin Speed Combinations Washer alternates speeds for great clothes care Multiple Wash Cycles Choose from various wash actions for optimal cleaning and clothes care 5 Wash Rinse Temperatures with Sanitize Multiple settings and a Sanitize wash offer a greater degree of control over fabric cleaning and care Automatic Water Levels Reduce water waste per cycle by filli...

Page 6: ...educe the risk of fire electric shock or injury to persons read the IMPORTANT SAFETY INSTRUCTIONS before operating this appliance Quick Start If the screen is dark press the POWER button to wake up the display Press the POWER button Select a wash cycle Defaults are set for each wash cycle These default settings can be changed See Control settings for more information If you selected a wash cycle p...

Page 7: ...ghtly soiled items that are needed in a hurry Cycle time is approximately 30 minutes depending on selected options RINSE SPIN To quickly rinse out any items at any time DRAIN SPIN Drain and spin at any time 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 ...

Page 8: ... change the wash temperature press the TEMP button until you have reached the desired setting You can choose between Tap Cold Cold Warm Hot or Sanitize The Sanitized wash temperature is not available on certain cycles such as Delicates When selecting the Sanitize wash temperature the washer increases the water temperature to sanitize and kill more than 99 of many common bacteria found in home laun...

Page 9: ...ou can lock the controls to prevent any selections from being made Or you can lock or unlock the controls after you have started a cycle Children cannot accidentally start the washer by touching pads with this option selected To lock the washer press and hold the TEMP and SPIN buttons together for 3 seconds To unlock the washer controls press and hold the TEMP and SPIN buttons together for 3 secon...

Page 10: ...in this front load washer Do not exceed the maximum fill line Overfilling can cause early dispensing of the bleach which could result in damaged clothes NOTE Do not use powdered bleach in the dispenser The Detergent Compartment Only use high efficiency detergent in this washer Use the detergent manufacturer s recommended amount DO NOT fill above the MAX line The detergent compartment is in the lef...

Page 11: ...mediately wipe off any spills Wipe with damp cloth Wipe or dust spills or washing compounds with a damp cloth Washer control panel and finishes may be damaged by some laundry pretreatment and stain remover products Apply these products away from the washer The fabric may then be washed and dried normally Damage to your washer caused by these products is not covered by your warranty Do not hit surf...

Page 12: ...a knife or slotted screwdriver pry open the door on the bottom right of the front of the unit 2 Twist the small white cap counterclockwise a quarter turn and unhook the small rubber hose Pull the hose out of the hole and remove the white drain hose plug above a small pan to capture any water that may drain Drain the excess water Replace 3 Unscrew the pump filter Rinse Replace 4 Close the access do...

Page 13: ...move all cups and inserts from the dispenser drawer Rinse the inserts cups and drawer with hot water to remove traces of accumulated laundry products To clean the drawer opening use a small brush to clean the recess Remove all residue from the upper and lower parts of the recess Return inserts to the proper compartments Replace the dispenser drawer To reduce buildup in the Dispenser Drawer area Us...

Page 14: ...yed The following table displays the default selections for each cycle Note Washer incorporates an adaptive fill algorithm which fills with only the amount of water to match the load size To Enter Demo Mode To Exit Demo Mode Unplug the washer 1 Open the door 2 Wait 30 seconds 3 Restore power to washer 4 Press 5 START PAUSE 4 times within 30 seconds of applying power Use same procedure as entering ...

Page 15: ...ncorporates an adaptive fill algorithm which fills with only the amount of water to match the load size The spin cycle is designed to extract as much water and detergent as possible without harming fabrics The available selection of spin speeds is controlled by cycle selection Speed Selected Basket RPM No Spin 0 Low 400 50 RPM Medium 650 50 RPM High 1200 50 RPM Extra High 1400 50 RPM ...

Page 16: ... 16 Cycle Time Chart Note Total cycle times grey shaded areas are cycles times without the second rinse yellow shaded areas ...

Page 17: ... than set limit the control will finish out the spin cycle at this speed If it is within limits it will accelerate to 1150 RPM 7 At 1150 RPM if OoB phase is greater than set limit the control will finish out the spin cycle at this speed If it is within limits it will accelerate to 1350 RPM 8 At 1350 RPM if the OoB phase is above the set limit it will de accelerate to 1150 RPM and continue at that ...

Page 18: ... installed in a location other than an alcove or closet the minimal clearances to combustible surfaces and for air opening are 0 inches on both sides and 3 inches front and rear Consideration must be given to provide adequate clearance for installation and service Note If your dryer is approved for installation in an alcove or a closet it will be stated on a label on the back When installed in an ...

Page 19: ...ay the dryer down on its side Continue using the carton to protect the finished floor in front of the installation location Carefully lay the dryer on its side Use the 1 packing material so you don t scratch the finish on the dryer 2 Remove the dryer leveling legs Unscrew and remove all 4 leveling legs 3 Locate the 4 rubber pads in the parts package Insert rubber pads into the leveling leg holes 4...

Page 20: ...n because of its weight and size Failure to do so could result in personal injury or death 9 Align the holes in the bracket with the holes in the back of the dryer Using a Phillips screwdriver attach the 2 8 x 1 2 inch tapping screws 10 Tighten the dryer bracket screws then tighten all stacking kit screws 11 Refer to the washer Installation Instructions to complete the washer installation 12 Refer...

Page 21: ...Locator Views Continued Next Page Top View Front View Water Level Sensor Dispenser Assembly Dispenser Vent Hose Water Valve Cold Water Valve Hot Line Filter Drain Pump Main PCB Damper Pump Filter Pump Drain Hose Cap ...

Page 22: ... 22 Component Locator Views Con t Thermistor Heating Element Motor Rear View Shown with back cover removed Dispenser View Dispenser Drawer Detergent Compartment Bleach Compartment Softener Compartment ...

Page 23: ... 23 Control Board Sub PCB Control Board Connections CN1 Input to Main PCB Continued Next Page ...

Page 24: ...ne Filter Reactor CN2 Door Lock Switches CN3 Door Lock Solenoids Drain Pump Water Valves CN4 Control Board CN8 Motor Power CN9 Hall Sensor CN10 Door Sensing Switch Control Board CN11 Thermistor Water Level Sensor CN12 L1 Input RY1 Heater Neutral RY2 Heater L1 CN3 ...

Page 25: ...r and line filter Two Phillips head screws are located at the rear of the top cover 4 Remove the 2 Phillips head screws from the control panel dispenser recess Top View Lock Tab Continued Next Page Control Panel The control panel is held in place with 4 Phillips head screws and 4 tabs Two tabs engage the front brace and 2 tabs engage the cabinet front To remove the control panel Remove the top pan...

Page 26: ...ntrol Panel Pull the cycle knob off 2 Place the control panel face down on a 3 protective surface Remove the 4 Phillips head screws that attach 4 the control board assembly to the control panel Release the control board assembly from the 5 dispenser side tab Lift the dispenser side of the control board 6 assembly then disengage the assembly from the opposite tab on the control panel Tab Tab Contro...

Page 27: ... Page Specific failures associated with the door lock can initiate error codes dE dE1 dE3 and DE3 See Error Codes The door lock is attached to the front panel with 2 Phillips head screws The door lock is accessed from the front of the washer when the right side of the gasket is partially pulled back To remove the door lock Use a long nose pliers to grasp the wire loop at 1 the spring location and ...

Page 28: ...Phillips head 10 mm hex head screws 1 on each side that attach the top of the front panel to the cabinet See Front Panel 4 Tilt the top of the front panel out approximately 3 inches Note The door lock release is located on the front of the door lock above the white wire harness White Wire Harness Front View of Door Lock Removed Lock Release 5 Reach down from the top with the back of your hand agai...

Page 29: ...ttach the front panel to the right and left side hooks 3 Lower the front of the washer to floor level 4 Remove the control panel See Control Panel 5 Disconnect the wire harness from the door sensing switch See Door Sensing Switch 6 Remove the door lock See Door Lock Door Sensing Switch The door sensing switch provides feedback to the main control board as to the status of the washer door If the sw...

Page 30: ...e line filter Remove the top panel See 1 Top Cover Remove the 1 2 in hex nut that attaches the 2 line filter to the right side cabinet brace Note A lockwasher is located on top of the filter 3 Lower the line filter from the brace and remove the lockwasher 4 Disconnect the input and output wire harness Note Install both wire harnesses with the triangular indicator facing outward from the filter 7 P...

Page 31: ... head screw attaches the dispenser to the front brace To remove the dispenser assembly Remove the top and control panels See 1 Top Cover and Control Panel Remove the inlet and the dispenser vent hoses 2 from the dispenser a Squeeze each clamp and slide it back b If necessary carefully break each hose loose by inserting a small flat blade screwdriver under the hose to break the seal c Remove the ho...

Page 32: ...in the air chamber As the water level rises the air pressure in the air chamber increases The pressure is translated into an electrical signal frequency by the water level sensor The frequency will vary depending upon water level from approximately 26 kHz empty tub 25 3 kHz reset level 24 8 kHz heater safety level 24 2 kHz wash level to 22 kHz overflow level This frequency can be measured at the w...

Page 33: ...ic failures associated with the water level sensor can initiate error codes OE and 1E See Error Codes The wash water level is approximately 1 inches deep at the bottom center of the wash basket The overflow water level is approximately 10 inches above the bottom of the door opening Overflow protection will occur at this water level The reset water level is approximately 3 16 inches deep at the bot...

Page 34: ...inute Each solenoid coil has an approximate resistance value of 1 2K Ω Operation of the water valves can be checked by using service test modes t04 See Service Mode Specific failures associated with the water valves can initiate error code 4E See Error Codes 4 Reach up behind the cabinet brace with a pair of needle nose pliers 5 Squeeze the 2 tabs holding the sensor to the brace and simultaneously...

Page 35: ...valve screws Drain Pump The pump consists of a 120 VAC 60 Hz motor impeller impeller housing and a removable strainer that helps prevent foreign objects from entering the pump impeller and drain outlet The pump runs whenever the washer is in the spin function of a cycle The pump runs if the water level sensor detects frequency under 22KHz overflow level and the washer is plugged in See Water Level...

Page 36: ... that may drain 5 Drain the excess water 6 Push the hose back inside the frame 7 Turn the drain pump filter counterclockwise approximately 2 turns then pull it out 8 Remove any debris or foreign objects from the filter and interior of the drain pump Drain Hose Cap Continued Next Page 9 Lift right side of pump cover top then disconnect wire harness 10 Release the compression tab that attaches the a...

Page 37: ...n the pump body before fastening the clamp Notch Tab Front Gasket Bottom Insert One way Check Valve Air Inlet Port One way check valve prevents drain water from reentering pump from drain hose or house drain system Air inlet port helps reduce cavitation noise Back Cover The back cover must be removed to access the heater thermistor main PCB and motor The back cover is attached to the washer with 4...

Page 38: ...ness from the hole in the shield 10 Grasp and pull the heater straight out from the outer tub Disconnect Disconnect Disconnect Heater Shield Wire Guide Target Temperature Reached Start Washing Wash Time 3 Min Heater On Heater Off END Yes No Yes The heater assembly is located below the motor and is accessed from the rear of the washer The heater assembly is held in place by a bracket attached to th...

Page 39: ...of the incoming water the washer control measures the difference between the voltage sent and the voltage returned from the water temperature sensor The washer control then makes temperature adjustments by activating the appropriate water valve Temperature Setting Water Temperature Tap Cold No control Cold 60 F 5 F Warm 90 F 5 F Hot 110 F 5 F Sanitize 153 F 5 F TEMP F MIN K AVG K MAX K 14 54 874 5...

Page 40: ...ctive housing and cover located inside the cabinet under the left side of the outer tub The bottom of the protective housing has a post that is inserted in a cutout in the bottom of the chassis The right side of the protective housing is attached to the rear of the cabinet with 2 hooks and 4 Phillips head screws A line filter reactor is attached to the protective housing cover with 2 Phillips head...

Page 41: ...cutout in the bottom of the chassis 5 Rotate the main PCB 90 clockwise and maneuver it out from the cabinet Tab Tab Tab Note The protective housing cover is attached to the main PCB housing with 3 recessed tabs located across the top 3 tabs on the right side 3 tabs on the left side and 1 tab on the bottom 6 Release the tabs and remove the protective housing cover 7 Note wire routing then remove th...

Page 42: ...See 1 Back Cover Disconnect the wiring to the stator and the Hall 2 sensor Remove the 19 mm 3 4 in SAE equivalent rotor 3 bolt with a socket wrench Rotate rotor bolt counterclockwise to remove Note 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 Use a rubber mallet if needed to tap the wre...

Page 43: ...and blue wires and the pink and red wires and 9 4K Ω between the blue and red wires If the sensor has failed the motor will not operate The Hall sensor is part of the stator assembly It is available as a separate part Operation of the motor assembly can be checked by using service test modes t08 and t09 See Service Mode Specific failures associated with the motor assembly can initiate error codes ...

Page 44: ...the 11 Phillips head screws that hold the glass holder to the door frame Glass Holder 4 Grasp and unsnap the glass holder and glass from the door frame 5 Turn the door over so that the door handle and door cover face up Note The glass is inserted underneath the door handle cover and held in place with 4 tabs that are equally spaced along the inner circumference of the glass holder To provide corre...

Page 45: ...anel and the outer tub The front of the tub gasket is secured to the front panel flange by a spring and wire located in the fold of the gasket The back of the tub gasket is attached to the outer tub lip with a wire and bolt gasket clamp To remove the tub gasket Remove the front panel See 1 Front Panel Note The 7 mm gasket clamp bolt uses reverse rotation to tighten or loosen the gasket Turn the 7 ...

Page 46: ...are attached to the outer tub with a 10 mm hex head screw and secured to 2 flanges in the bottom of the chassis with a 13 mm hex head bolt To remove the dampers Remove the back cover See 1 Back Cover Remove the front panel See 2 Front Panel Note Before removing the right side damper to gain extra clearance it may be necessary to remove the drain pump See Drain Pump 3 Remove the 13 mm hex head bolt...

Page 47: ...eved by the use of 2 dampers that are located between the bottom of the tub assembly and chassis 1 on each side To remove the outer tub assembly 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 Drain the washer using the pump drain hose 1 See Using The Washer Remove the fron...

Page 48: ...ose to break the seal c Remove the hose Note When installing the dispenser vent hose ensure the notch cutout is engaged with the right side tab on the tub inlet 10 Remove the dispenser from the front and left side braces then remove the dispenser outlet hose from the dispenser See Dispenser Assembly 11 Place the dispenser assembly over the left rear corner of the washer 12 Remove the three 10 mm h...

Page 49: ...fore fastening the clamp When installing the air chamber inlet hose engage the tab on the hose with the notch on the air chamber before fastening the clamp Tub Outlet Hose Air Chamber Inlet Hose Air Chamber Notch Tab Notch Tab 16 Remove the 10 mm hex head screw and washer from the top of each damper See Dampers 17 Lift the rear of the tub assembly to maintain a level position then pull each damper...

Page 50: ...e necessary to separate the outer tub halves To remove the wash basket Remove the outer tub assembly See 1 Outer Tub Assembly and Suspension Remove the suspension springs from the tub 2 front Remove the tub gasket See 3 Tub Gasket Remove the motor rotor See 4 Motor Assembly Carefully position the tub assembly motor side 5 down on a clean protective surface Remove the single 10 mm hex head screw 6 ...

Page 51: ... assembly 9 Pull the wash basket out from the tub rear assembly Tub Rear Wash Basket Note The basket can be ordered as a complete assembly The bearing and seal assembly is part of the tub rear assembly and is not available separately Bearing and Seal Assembly ...

Page 52: ...t01 Rotating the knob counterclockwise CCW decrements the test number in the display Rotating the knob clockwise CW increments the test numbers in the display Once the test number is selected pressing START PAUSE begins the selected test Service Mode Description t01 Software version number test UI MC Check the software version t02 Error codes Check for any error codes reported by the controls t03 ...

Page 53: ...bleach valve cold valve together and signal LED turns on Signal Button Off Turns off bleach valve cold valve together and Signal LED turns off Power Returns to service mode screen t05 Water level sensor test Enter Turns on the cold water valve the water level frequency continue updating on SSD Power Drains and returns to service mode screen t06 Drain Pump test Enter Turns on the drain pump Power R...

Page 54: ...ter level sensor error Check integrity of the water level sensor Replace if necessary LE Leakage error Check integrity of the tub 9E1 Under voltage error Measure AC outlet voltage ensure the correct range 120 to 132 VAC Check electrical connections at the motor Check harness integrity between the main control and motor drive Unplug the unit wait 30 seconds and restart the unit If the fault persist...

Page 55: ...f the fault persists and re appears replace the main PCB bE2 Button error Check button operation If the fault persists and re appears replace the sub PCB AE Communication error between Main and Sub PBA Check the integrity of the wiring between the main PCB and sub PCB Clear the fault and run the cycle If fault persists and reappears replace the main PCB SF System Failure error Replace the main PBA...

Page 56: ... 56 Schematic WIRE DRAWING ...

Page 57: ... Service trips to your home to teach 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 Damage after delivery Replacement of house fuses or resetting of circuit breakers Damage to the product caused by accident fire floods or acts of God Incidental or consequential ...

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