Page 1
GE Consumer & Industrial
Technical Service Guide
August 2007
GE Coin-Operated Washers
WCCB1030HWC
WCCB2050HWC
WCRD2050HWC
WMCD2050HWC
31-9165
Page 2
IMPORTANT SAFETY NOTICE
The information in this service guide is intended for use by
individuals pos sessing adequat e ba ckgrounds of electric al,
electronic, and mechanical experience. Any attempt to repair a
major appliance may result in personal injury and proper ty
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.
CAUTION
To 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 and properly fastened.
All rights reserved. This service guide may not be reproduced in whole or in part
in any form without written permission from the General Electric Company.
GE Consumer & Industrial
Technical Service Guide
Copyright © 2006
– 2 –
Page 3
Table of Contents
Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Brake Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Cabinet/Front Panel/Cover-Lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Control Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Control Panel Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Dimensions/Water Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Drain Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Harness Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Inverter/Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Inverter/Motor Signal LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Inverter/Motor Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Mode Shifter Coil Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Motor and Drive System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Rating Plate/Mini-Manual Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Shaft and Mode Shifter Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Shaft and Mode Shifter Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Spin Basket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Tub Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Tub Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Water Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
– 3 –
Page 4
MINI MANUAL LOCATION
Rating Plate
at rear of
backsplash
Rating Plate and Mini-Manual Location
The rating plate containing model and serial number is located on the rear of the control panel in the center.
If you lean over the washer you can see the rating plate without moving the unit.
The washer incorporates optimum washability, capacity, quiet operation, and ease of service. The washer
is 100 percent front serviceable, with 40% fewer parts. It features an Auto Balance suspension system, that
allows greater out of balance capacity.
All washers are manufactured and supplied with provisions for proper grounding. The installation instructions
advise on proper grounding. Safety devices should never be removed unless for servicing, and must always
be replaced prior to placing the washer back in active service.
The mini manual is located in the backsplash, and contains service information
Suggested Tool List:
#2 Phillips, small slot blade screwdriver
1/4", 3/8", 7/16", nutdrivers
3/8", 3/4" open-end wrench
1/2" socket and rachet
Pliers
Special agitator puller WX5X1326
Special hub nut tool WX5X1325
Special belt installation tool WX05X10102
Hammer
T20H Torx head security screwdriver
Locking pliers
Wire tie to reattach overflow tube
– 4 –
Page 5
Control Panels
HOT WASH
OPERATIN
G
1. Read instructions under lid.
2. For your saftey, washer will not run with lid open.
Cycle is not complete until ALL lights go out.
RINSING FINAL SPIN
WARM WASH
COLD WASH
COLORED COTTONS
& REGULAR PERM PRESS
WHITE COTTONS
COMMERCIAL
WASHER
DELICATES PERM PRESS
& MIXED LOADS
HOT WASH
NORMAL/FAS
T
1. Read instructions under lid.
2. For your saftey, washer will not run with lid open
.
Cycle is not complete until ALL lights go out
.
FILLING WASHINGTIME REMAINING
RINSIN
G
FINAL SPI
N
WA
RM WASH
NORMAL/FAS
T
WA
RM WASH
GENTLE/FAS
T
COLD WASH
GENTLE/FAS
T
COLD WASH
NORMAL/FAS
T
PERMANENT PRESS
COLORED COTTONS
WHITE COTTON
S
COMMERCIAL
WA
SHER
DELICATES
BRIGHT COLORS
WCCB1030HWC
WCCD2050HWC / WMCD2050HWC / WCRD050HWC
– 5 –
Page 6
Fill
42"
25-1/2"
27"
36"
Dimensions/Water Consumption
Approximate water consumption – Actual usage may be slightly higher or lower.
HOT COLD TOTAL
Cycle Selection F Models H Models F Models H Models F Models H Models
Standard HOT Wash 16 15 22 14 38 29
Standard WARM wash 8 5 31 24 39 29
Economy HOT wash 14 14 20 13 35 27
Economy WARM wash 7 5 30 22 36 27
Energy Saving
All wash cycles include energy-saving cold water
rinse.
Total cycle time --- 27 minutes plus fill times.
Actual wash time is 9 minutes with final spin
speed of approximately 630 RPM. The washer will
automatically turn itself off upon completion of the
cycle.
Electrical Requirement: 115 Volts, 60 Hertz. A
properly grounded, 15- or 20 amp individual branch
circuit is required.
– 6 –
Page 7
Prepare Washer for Installation
Move Washer Close
to Final Position
Shipping
Rod
Remove
and Discard
Tag or
Strap
BOTTOM OF
WA
SHER
LEVELING
LEGS
Drain
Hose
Secure to
Drain Hose
Cable Tie
Fill Hoses
Drain
Nozzle
Standpipe
Wire
Wrap
Remove
Screws
Rotate
Clockwis
e
Install Drain Nozzle
1. Remove cardboard inner pack and installation accessories from under lid. Drain hose is in
washer basket.
2. Grasp retainer rod
on lower right side
(has a tag on strap),
and pull rod straight
out and discard.
3. Be sure water supply lines have been
thoroughly flushed.
4. Move washer to final
location. DO NOT let fill or drain hoses drag and
get under washer.
5. Adjust front leveling legs as necessary to level
washer. Front leveling legs are adjustable; if
adjustment is
necessary, relevel. The washer
must rest firmly
on all four legs.
To “set” rear selfleveling system,
tip washer forward so that rear
base is about 4"
off the floor, then lower.
6. Install drain hose in drain facility and secure with
plastic tie strap provided or tape as illustrated.
Note: Drain hose nozzle may be shortened if original
length prevents full insertion into drain facility.
1. Insert one end of aluminum drain nozzle into
standpipe.
2. Slip or cut wire wrap back approximately 2" below
top of standpipe.
3. Cut drain hose just below standpipe. Place silver
hose clamp over black drain hose end.
4. Insert drain nozzle
into end of drain
hose, and
position clamp to
secure drain nozzle
to drain hose.
CAUTION: Be sure drain hose is taped or secured to
standpipe or other drain facility.
Note: Water may be drained into a standpipe. The
discharge height must not be less than 30 inches, nor
more than 6 feet above base of washer. Standpipe
must be 1-1/2" minimum inside diameter and must
be open to atmosphere.
Economy Water Usage
The pressure switch is set in the factory for the
medium water level and usage.
To change setting from medium water level to high
or low:
1. Make sure washer is unplugged from electrical
outlet.
2. Remove 4 torx screws from back of control panel
and lay control panel front on cover.
CAUTION: Be sure drain hose is firmly secured to
drain facility.
7. Determine which is HOT water line before
attaching fill hoses to faucets. Traditionally, HOT
faucet is on the left. Be sure rubber washers are
in end of both washer fill hoses and connect
hose from right inlet valve on washer (marked
HOT) to HOT faucet and left hose to COLD faucet.
Couplings should be hand-tightened plus 1/2
turn with pliers.
3. Locate pressure switch in backsplash, and per
illustration move white plastic cam on pressure
switch to the clockwise position with your finger,
until it clicks into position, to select the economy
water saver (low water level). To select high
water level, move the white plastic cam counterclockwise until it clicks into position. Pressure
switch does not have to be removed to change
the setting.
– 7 –
Page 8
Washer Electrical Preparation
Attach Ground
(Obtain Locally)
5/16" - 18 Thread
3/4"
Rear View
1-1/16"
5/8"
9/32"
Width
Cam Lock Available
From Greenwald
Part #8-1222
Wood
Block
Nut
Nut
Cam
Lock Washer
Spring Washe
r
Insure Proper Ground
Exists Before Use
Electrical and Plumbing Requirements
If required, an external
ground wire (not provided)
which meets local codes may
be added. Attach to washer
cabinet with sheet metal
screw (not provided) to rear
of washer as illustrated. The
screw required is a #8 sheet
metal screw, 18 threads per
inch, 1/2 inch long. It can
be obtained locally at any
hardware store.
SPECAL INSTRUCTIONS
Cover Security Lock Installation
Washer cover is designed to accept stud type lock
as shown below.
CAUTION: For personal safety do not use an
extension cord or adapter plug with this appliance.
Do not, under any circumstances, cut or remove the
third grounding prong from the power cord.
Follow national electrical code ANSI/NFPA 70 or
local codes and ordinances.
• No other electrical device should be operated on
the same circuit while washer is operating.
• This appliance must be supplied with 115V, 60 Hz
and connected to an individual properly grounded
branch circuit protected by a 15 or 20 amp circuit
breaker or time-delay fuse.
• If the electric supply provided does not meet the
above specifications, call a licensed electrician.
• Water pressure – 20 psi
minimum.
• Water temperature from
water heater 120° to
150°F (50° to 66°C).
To install lock:
1. Remove plastic insert in front of cover.
2. Install the lock washer on the lock shaft and
locate so that the lock can be engaged in a
counterclockwise direction.
3. Insert lock mechanism into cover opening and
tighten until snug. (Overtightening may damage
painted surfaces.)
4. Install cam and tighten until snug.
Access Door Lock Installation
To remove the access door retainer before installing
a lock, place the door over a wood block with a 1/2"
hole drilled in it and tap end of screw lightly with a
hammer.
Note to Installer
After Installation check the following:
• Drain Hose must be pulled tight and secured to
drain facility to prevent lifting out of drain facility
during discharge. Nozzle clamp must be securely
tightened to prevent leaks. Make sure drain hose
is not rubbing against concrete or block wall.
Rubbing may wear holes in hose.
• Hose Washers–Rubber washers in both ends of
fill hoses.
• Hose Connections–Hot side (right valve)
connected to hot water supply, cold side (left
valve) to cold water supply. All connections should
be hand-tightened plus 1/2 turn with pliers.
• Grounding–Must be properly grounded to
conform to local codes and ordinances.
• Leveling–Adjust front leveling legs as necessary
(preleveled from the factory at 1"). Check side to
side and front to back. Tilt forward approximately
4" and then lower to adjust rear self-leveling legs.
Specifications subject to change without notice.
• Operation–Turn on faucets and run washer
through complete cycle by hand. Check for leaks,
noise, vibration, correct water temperatures and
proper operation in wash and spin. While washer
is in spin, raise lid and check lid switch and brake
operation
– 8 –
Page 9
Lint Removal System
The lint filtering system consist of the turbo pump,
agitator, air bell, and self cleaning filter at bottom of
spin basket. During agitate water moves through
the sides and up from the bottom through the self
cleaning filters.
During pump down, prior to spin, the turbo pump
is energized, and water is drawn out the sides and
down through the self cleaning filter to clean and
remove lint from the bottom side of the filter area,
and flush lint down the drain.
Energy Saving
All wash cycles include energy-saving cold water
rinse.
Total Cycle Time
27 minute wash cycle, plus fill time. Wash time is
9 minutes with a final spin speed of approximately
630 RPM. Washer will automatically shut off at end
of cycle.
Dual Action Agitator
– 9 –
Page 10
REMOVE
4 SCREWS
!
Control Panel
DEPRESS THE SIX TABS
SHOWN TO RELEASE
PC BOARD FROM PCB COVER
DEPRESS THE
FOUR TABS SHOWN
TO RELEASE PC BOARD
COVER FROM CONTROL PANEL ASSEMBLY
M
IN
I-
M
A
N
U
A
L
The control panel is designed with ease of service
being the major consideration. The switches are tab
interlock, and harness connectors are designed to
only fit the correct mating connector. Control panel
is galvanized, with three tabs designed to allow the
switchtrim to be supported during service. MiniManual is located in the control panel.
1. Remove four (4) T20H Torx screws from the top
of control panel as shown. (Mini-Manual can be
accessed from this position as illustrated.)
2. Water valve is serviceable by removing the (4)
T20H Torx screws from the top of the control
panel, and rotating the switchtrim forward. Two
1/4" hex screws mount the water valve to the
console. The water valve can be changed from
the front by first “pinching off” the inlet hoses
and pulling through back of control panel to
remove.
To Replace Countback Display PC Board:
(Some Models)
WARNING! THE STEP DOWN CAPACITOR
ON PC BOARD IS 120 VOLTS, AND
POWER MUST BE REMOVED PRIOR TO SERVICING,
THE TRACES ON THE BOARD RUNNING TO THE
CAPACITOR ARE HOT!
1. Remove the four screws in the top of the control
panel as shown in instruction #1 above.
2. Disconnect harness connector to pc board.
3. Pull 6 tabs as shown in illustration, one at a time,
starting at connector end, while applying slight
upward pressure, until all tabs are released.
Remove pc board.
4. With pc board cover exposed, lift up on either
end of cover and release the four tabs, one at
a time until the cover is released and remove.
5. To reinstall, align the pc board cover and
press carefully. The tabs are beveled to make
installation easy.
6. Align pc board, by inserting the counter end
under the tab in plastic pc board cover at the
counter opening, and moving towards the connector end, carefully press into place, so that
each tab snaps into place. Reconnect harness
connector, and reinstall control panel and four
screws.
Note: Use care not to overflex the pc board, to
prevent breakage.
– 10 –
Page 11
Timer
NOTE: LID SWITCH CAN BE ACCESSED BY
REMOVING DOOR AND LATCH ASSEMBLY
ON METER CASE AS SHOWN. USING A
PLASTIC PEN TO PREVENT SHOCK HAZARD,
HOLD DOWN LID SWITCH ACTIVATOR AND
THIS WILL ALLOW YOU TO RUN THE MACHINE
WITH LID UP FOR SERVICE.
WARNING! TAKE NECESSARY PERSONAL SAFETY
PRECAUTIONS TO AVOID PERSONAL INJURY DUE
TO SPIN BASKET RUNNING WITH LID UP.
DUST
COVER
MOTOR
SWITCH
LOCATING BOSS
TIMER IN
COIN BOX
The timer is a double switch bank, with polarized
harness connectors. This insures that the correct
harness connector will only fit the mating switch
bank.
Some models have only one switch bank, check
mini-manual.
Timer motor and timer are NOT interchangeable
with the other timers. It is stocked as one com–
ponent, and repair parts are not available. The
mounting bracket is stocked as a separate part
and can be reused to install the replacement timer.
Timer cam charts and schematics are shown in
mini-manual located in the backsplash.
Note: Lid switch can be accessed by removing
door and latch assembly on meter case as
shown in illustration. Use a plastic pen to
prevent shock hazard. Hold down lid switch
activator and this will allow you to run the
machine with lid up for service.
WARNING! Take necessary personal safety
precautions to avoid personal injury due to spin
basket running with lid up.
– 11 –
Page 12
BOTTOM
TABS
ROTATE FRONT PANEL
OUT AND LIFT OFF TABS
TO REMOVE
LOCATE SPRING CLIPS
ON EITHER
SIDE AND RELEASE
WITH PUTTY KNIFE
LOCATE AND RELEASE
TWO SPRING CLIPS
Cabinet
Cabinet is galvanized sheet metal, with powdered
paint coating and is rust resistant. It has a fully
enclosed bottom, and is 3 sided with a front panel.
The lid has patented colored lid instructions. The
levelling legs are installed from the factory, and are
Polypropylene with Santoprene non-skid base. Base
of leveling legs have a 1" hex nut design to allow
easy adjustment if necessary. Rear is self leveling,
and is accomplished by lifting the rear legs 4" off the
floor and lowering the washer.
To Service Front Panel:
1. Locate the two spring clips between cover and
front panel and cover.
2. Insert putty knife and push to release clips.
3. Rotate front panel forward and lift off cabinet
base locating tabs.
4. To reassemble, place front panel on washer base
locating tabs, rotate up into place and press top
of panel at clips, until panel snaps into place.
To Service Cover/Lid Assembly:
1. Remove front panel.
2. Remove two 1/4" hex screws front left and right
side of cabinet top support.
3. Pull cover/lid assembly towards you and up
about 2".
4. Release lid switch wire connector, wires are
orange/orange white. Connector is located in
right rear corner of cover, you may need to press
down on wiring to allow clearance to remove
connectors.
5. Remove cover/lid assembly, taking care not to
allow lid to swing out and be damaged.
6. Reverse steps to reassemble.
– 12 –
Page 13
Water Pressure Switch
MINI-
MANUAL
PRESSURE
SWITCH
The water pressure is sensed through pressure from
the take off at the lower portion of the tub. Terminal
connectors are marked (NC) normally closed and
(NO) normally open, and (C) common terminal on the
switch.
Tech Tip Before disconnecting hose from water
level Switch, be sure water level in machine is below
bottom of wash basket. After reconnecting hose,
put machine in spin for at least one minute before
checking operation of switch.
1. If water level is below basket, remove control
panel, and pressure switch hose.
2. Disconnect terminal connectors note (NC) Violet,
(NO) Brown, (CO) Yellow- Black.
3. Check terminals for continuity.
4. If defective replace by inserting a small screwdriver under locking tab, rotating the switch
counterclockwise, and lifting switch out of switch
bracket to remove.
WATER LEVELS
L – 21 Gallons
M – 23 Gallons
H – 25 Gallons
Washers are shipped from the
factory pre-set to 23 gallons,
the middle setting.
5. Reverse steps to reassemble, put machine in spin
for at least one minute before checking operation
of switch.
ECONOMY WATER SAVER SETTING
The pressure switch is set in the factory for the
medium water level and usage.
To Change setting from medium water level to high
or low:
1. Make sure washer is unplugged from electrical
outlet.
2. Remove 4 screws from top of control panel, and
lay control panel front on cover.
3. Locate pressure switch in backsplash, and per
illustration move white plastic cam on pressure switch to the clockwise position with your
finger, until it clicks into position, to select the
economy water saver (low water level). To
select high water level, move the white plastic
cam counter-clockwise until it clicks into
position. Pressure switch does not have to be
removed to change the setting.
– 13 –
Page 14
REMOVE HUB NUT
(4) 5/16"
DAMPENER
SCREWS
DAMPENER
SCREWS
REMOVE AIR BELL
COUPLING
AIR BEL
L
Spin Basket
To Service Spin Basket
1. Remove front panel and cover/lid.
2. Disconnect (4) dampening straps from tub,
attached by 5/16" hex head screws.
3. Remove tub cover by lifting out 8 tabs on tub
cover, and pulling cover off.
4. Remove agitator by grasping bottom and sharply
pulling up, or use agitator removal strap as
shown.
5. Remove 7/16" hex bolt attaching air bell coupling
to transmission spline shaft.
Tech Tip: The 7/16" bolt has an “O” ring and should
be replaced every time it is removed to maintain air
bell seal.
6. Remove left-handed 1- 11/16" transmission hub
nut. This nut is aluminum, take care not to round
the edges when removing or replacing. (Note
that the word “LOOSEN” with an arrow showing turn to the LEFT appears on the nut.
7. Lift tub / basket / platform forward to allow clearance to remove basket.
8. Lift basket out and set it aside.
Note: You may hear water in balance ring. This is
sealed and is normal.
9. Replace the basket by reversing procedure.
Tech Tip: The hub nut must be torqued to 110 ft-lbs.
To ensure the hub nut is tightened sufficiently, use
an impact wrench.
REMOVE AGITATOR
– 14 –
Page 15
Motor and Drive System
The new GE washers incorporate a new motor and drive system. The 120 VAC input powers a three phase
induction inverter/motor assembly. The inverter produces approximately 340 VDC, which is pulse width
modulated (PWM) to control motor speed. There is no location to check inverter output voltage to the motor.
Voltage given is for information only. The motor is bi-directional, constantly reversing it’s direction to provide
agitation. The motor is connected by a belt to the shaft and mode shifter assembly. By energizing or deenergizing a coil, the mode shifter assembly engages or disengages the shaft and tube. This allows for
agitation and spin cycle modes.
Motor status is displayed through a series of flash codes from a green LED located on the front side of the
inverter just above the motor. These codes are stored in memory until cleared.
Green LED
Inverter/Motor
– 15 –
Page 16
Shaft and Mode Shifter Overview
The shaft and mode shifter assembly consists of the shaft and tube, mode shifter cam, and mode shifter coil.
It operates in 2 distinct modes, spin and agitation.
The shaft and tube transfers power to the wash system. Motor power is transmitted to the shaft and tube
from the drive belt to the drive pulley. The drive pulley is attached to one end of the agitator shaft and the
agitator is attached to the other. The tube is fixed to the washer basket at all times.
The mode shifter changes the shaft and tube from spin to agitation. In agitation mode, the tube is fixed to the
platform and the agitator shaft rotates freely. In spin mode, the agitator shaft is fixed to the tube and both
rotate together.
Basket
Agitator
Tub
Inverter
Motor
Motor Pulley
Drive Belt
Tube
Agitator Shaft
Platform
Mode Shifter
Drive Pulley
View from Right Side
(Continued next page)
– 16 –
Page 17
Shaft and Mode Shifter Assembly
Mode Shifter Coil
Mode Shifter Cam
Drive Shaft
Agitate Position
Mode Shifter Coil
Mode
Shifter
Cam
Drive Pulley
Note: Mode shifter coil energized for agitate mode; cam teeth disengaged from drive pulley.
Spin/Idle Position
Mode Shifter Coil
Mode
Shifter
Cam
Note: Mode shifter coil de-energized for spin/idle mode; cam teeth engaged in drive pulley.
Drive Pulley
(Continued next page)
– 17 –
Page 18
MODE SHIFTER
AGITATE
PROGRAM
RUNS
(18 SEC)
Mode Shifter Operation - Agitation
The mode shifter is controlled by the motor inverter circuit. When the washer starts the agitation
cycle, the inverter energizes the mode shifter coil. The magnetic field of the coil lifts the mode shifter
cam, disengaging it from the drive pulley. Without the cam engaged, the drive pulley rotates only
the agitator shaft.
At the beginning of the agitation cycle, the inverter energizes the mode shifter coil with
135 VDC (PWM) for approximately 18 seconds. This high voltage pulls the mode shifter
cam up from the drive pulley. During this time, the motor also rotates clockwise and
counterclockwise in short strokes to ensure the mode shifter cam has been released
from the drive pulley. This operation is called the
Mode Shifter Agitate Program. It is
normal to hear metal-to-metal "clunking" sounds during this time as the cam and drive
pulley disengage. The washer runs this program when the agitation cycle first starts,
when power is restored if lost during agitation or when the user restarts the washer if
paused. during agitation.
Once the Mode Shifter Agitate Program has completed (18 seconds), agitation begins. During
agitation, the inverter continues to supply 30 VDC (PWM) to the mode shifter coil. This voltage is
sufficient to hold the mode shifter cam away from the drive pulley throughout the remainder of the
agitation cycle.
The inverter motor controls the speed of agitation. The agitator stroke rate is approximately 30
strokes per minute. This rate is the same for all cycles. The speed of the motor controls the arc. At
fast speed, the arc is approximately 360 degrees. At slower speeds, the arc is substantially less. It is
the distance of the arc that determines normal or gentle wash cycles.
Mode Shifter Operation - Spin
At the beginning of the spin cycle, the inverter runs a short sequence (approximately
30 seconds) to make certain the mode shifter cam is engaged with the drive pulley. The
inverter does not supply voltage to the mode shifter coil during this sequence. Since
the coil is not energized, the spring loaded cam drops down into the teeth of the drive
pulley. During this time, the motor also rotates clockwise and counterclockwise in
short strokes to ensure the cam has engaged with the drive pulley. This 30 second
operation is called the Mode Shifter Spin Program. It is normal to hear metal-to-metal
"clunking" sounds during this time as the cam and drive pulley engage.
MODE SHIFTER
SPIN
PROGRAM RUNS
(30 SEC
Notes:
If the washer is in agitation and power is lost, the inverter control will run the Mode Shifter Agitate
Program when power is restored.
If the washer is in spin and power is lost, the inverter control will run the Mode Shifter Spin Program
when power is restored.
To help prevent out-of-balance conditions, the last 10 seconds of agitation on certain cycles will be
short, fast strokes to help redistribute the clothes load prior to entering the spin cycle.
(Continued next page)
– 18 –
Page 19
Drain Pump
Belt
The drain pump is coupled to a 120 VAC, 60 Hz, 85
watt motor. The pump motor has an approximate
resistance value of 12Ω.
To remove the pump:
Note: Water will remain in hoses even when the tub
appears empty. Use care to avoid water spills.
1. Disconnect power to the machine.
2. Lower the drain hose into a small bucket to
remove any water remaining in hose.
3. Remove the front panel. (See Front Panel.)
4. Disconnect the pump wires.
5. Pinch off the black sump hose to prevent water
spills.
6. Remove hose clamps and hoses from the pump.
7. Remove two 3/8" hex-head screws.
• Since the belt provides constant tension, there is
no need for adjustments (an adjustment method
is not provided).
• A worn or damaged belt can result in excessive
brake time and will initiate a motor inverter slipping belt error code. This code will prevent the
motor/inverter from operating.
• To replace the drive belt it may be helpful to use
the belt install tool (part number WX05X10102).
Belt Install Tool Kit
Sump Hose
Drain Pump
Pump Wires
To replace the drive belt using the tool kit:
Note: If not using the belt install tool, follow steps 1
through 3, and 6 through 7. Remove wire tie after
step 7.
Disconnect power.
1.
Remove the front panel. (See Front Panel.)
2.
Center belt on drive pulley and secure tightly
3.
with wire tie as shown on following page. Align
wire tie as shown.
Stretch the belt install tool to fit over the end of
4.
the motor shaft. (See Figure A.)
Slide belt install tool upward until it snaps into
5.
the first groove of the motor shaft. (See Figure B.)
Center belt on motor shaft grooves and slowly
6.
turn drive pulley clockwise.
Continue rotating drive pulley until belt is fully
7.
engaged.
– 19 –
Remove wire tie and belt install tool.
8.
(Continued next page)
Page 20
Note:
• A new belt will be slightly smaller than the drive pulley.
• A belt that has been installed on the drive pulley will
stretch to the diameter of the pulley over time. This is
normal and does not indicate a bad belt.
New Belt on Pulley
– 20 –
Page 21
Inverter/Motor
The inverter/motor assembly receives 120 VAC,
which the inverter converts to approximately 340
VDC. The inverter then uses pulse width modulation
(PWM) to supply the motor with an AC varying
frequency to control speed.
Note: There is no location to check inverter output
voltage to the motor. Voltage given is for information
only.
The inverter/motor assembly consists of a motor
and inverter board. A brake resistor is molded into
the underside of the inverter cover and absorbs
energy from the reversing of the motor during the
braking cycle. A Hall effect sensor mounted on the
inverter board measures motor speed (RPM).
The motor and inverter are available only as an
assembly.
WARNING: Do not attempt to remove the inverter
cover to service the board or brake resistor.
Note:
• There is a non-resettable fuse, located in the
motor harness along the right side of the cabinet.
If the fuse is open, agitate, spin and mode shifting
will not occur. LED will not light .
• If the motor speed sensor fails, the motor will not
run. LED will flash.
To remove the inverter/motor:
Disconnect power.
1.
WARNING: Exposed terminals, PC board, and
rotating parts may cause injury and/or electrical
shock. To reduce the risk of electrical shock,
disconnect power and allow at least 5 minutes for
capacitors to discharge before servicing motor.
An audible clicking sound will be heard when the
inverter capacitor discharges (in-rush relay closing).
Remove the front panel. (See Front Panel.)
2.
Disconnect 3 wire harnesses from the motor.
3.
Release the compression tabs that attach the
4.
wire retainer to the front of the platform.
Remove the belt by rolling it off the bottom of the
5.
motor pulley.
Remove the front two 3/8" motor nuts and loosen
6.
the rear 2 nuts.
Cover
Inverter
Disconnect
• Since the timer receives no feedback from the
inverter motor assembly and if the motor is not
operating, the washer will still fill with water, count
down on the display and drain.
• If during an agitation cycle, water leaks from the
tub and resets the pressure switch, the inverter
control stops agitation and goes through the
mode shifter spin program to de-energize the
cam and the washer starts to refill with water. The
motor will not run again until the pressure switch
is satisfied, at which time the inverter control will
run the mode shifter agitate program.
• If the mode shifter circuit fails or the coil opens,
the tub will move back and forth with the agitator
during the wash cycle.
Motor
Wire Retainer
Drive
Pully
Belt
(Continued next page)
– 21 –
Page 22
Note: Minimal clearance exits between the 2 rear
INVERTER
N
WR
MODE
SHIFTER
FUSE
C7
1
2
2
1
4
3
3/8" motor nuts, isolators, and the drive pulley.
Raise the front of the motor high enough to
7.
disengage the motor alignment pin from the pin
locator hole then slide the motor forward so that
the 2 rear spacers clear the drive pulley.
Remove the rear two 3/8" motor nuts.
8.
Tilt the top of the motor towards the shaft
9.
and tube. Lift and remove the motor from the
platform.
WARNING: The motor casing is NOT at chassis
ground potential. Voltage may be present on the
motor casing. To prevent electrical shock, do not
touch the motor when connected to power.
CAUTION: To prevent motor, inverter, or main control
board damage, make certain all isolators are in
place when reinstalling motor to platform.
Note: When replacing the motor, ensure the motor
alignment pin is fully inserted in the pin locator hole
in the platform before tightening motor nuts. There
could be one or two alignment pins.
Harness Fuse
A non-resettable 10-amp fuse is wired in the neutral
side of the line. The fuse is wrapped in the motor
harness located along the right side of the cabinet.
If the fuse is open, agitate, spin, and mode shifting
do not occur. Motor LED will not light . Check the fuse
connections and wiring harness.
Alignment Pin
Pin Locator Hole
Note: When replacing a motor, check its brake
operation. Place washer in a spin cycle and lift the
lid after it has reached full speed. The basket should
stop within 7 seconds. If time exceeds 7 seconds
check the lid switch operation, and check the belt
for worn ribs or slippage due to residue on the belt
or pulleys.
CAUTION: Bending the harness can damage the
fuse.
If the harness is OK, check the inverter/motor; a
shorted brake resistor or internal motor problem
can cause fuse failure.
Note: If the fuse is open, use harness fuse kit (part
number WH49X10041). Instructions are included
with the kit.
– 22 –
Page 23
Tub Cover
Tub Assembly
Note: The tub cover can be replaced without
removing the tub.
To remove the tub cover:
Remove the front panel. (See Front Panel.)
1.
Remove the cover/lid assembly. (See Cover/Lid
2.
Assembly.)
Disconnect 4 dampening straps from the tub
3.
cover by removing four 5/16" hex-head screws.
Tub Cover
Note: The motor can be replaced without removing
the tub. (See Inverter/Motor.) The tub assembly must
be removed when replacing the spin basket, outer
tub, or certain speed drive components.
To remove the tub assembly:
Disconnect power.
1.
Lower the drain hose into a small bucket to
2.
remove any water remaining in the tub.
Remove the front panel. (See Front Panel.)
3.
Remove the cover/lid assembly. (See Cover/Lid
4.
Assembly.)
Remove the tub cover. (See Tub Cover.)
5.
Remove the agitator. (See Agitator.)
6.
Remove the 7/16" hex-head bolt and air bell
7.
coupling from the agitator shaft.
Remove the air bell.
8.
Release the cover from the outer tub by lifting
4.
the 8 tabs.
Raise the front of the cover to clear the front
5.
cabinet brace and tilt the tub forward.
Carefully lift and remove the cover from the tub.
6.
Tab (1 of 8)
Note: When replacing air bell, tighten the 7/16" hexhead bolt to 90 in. lbs. of torque.
(Continued next page)
– 23 –
Page 24
CAUTION: Use only a rubber mallet, dead blow
hammer, or impact wrench to remove the hub nut.
Use of a steel head hammer may result in damage
to the spin basket.
Note: The word “LOOSEN” and an arrow appear on
the hub nut. Turn clockwise to remove.
Remove the left-hand thread, 1-11/16" nut
9.
using an impact wrench or a hub nut wrench
(WX5X1325) and rubber mallet or dead blow
hammer.
WARNING
: Exposed terminals, inverter board and
rotating parts may cause injury and/or electrical
shock. To reduce the risk of electrical shock,
disconnect power and allow at least 30 seconds
for capacitors to discharge before servicing motor.
A distinct click can be heard from the relay on the
inverter when the capacitor is discharged.
Disconnect the 2 outer motor harness
10.
connectors, and the 1/4" hex-head screw that
attaches the platform ground wire.
Release the compression tabs that attach the 3
11.
motor wire harness retainers to the front of the
platform.
Disconnect
The hub nut must be torqued to 110 ft.-lbs. To
ensure the hub nut is tightened sufficiently, use an
impact wrench.
Platform Ground Wire
Wire Retainer (1 of 3)
Remove the water pressure switch hose from
12.
the outer tub.
Pinch off the black sump hose to prevent water
13.
spills.
Loosen the 5/16" screw-type hose clamp and
14.
remove the sump hose at the tub.
(Continued next page)
– 24 –
Page 25
Note: The front and rear rod and spring assemblies
have different spring compressions and should not
be interchanged. The rods are color-coded to ensure
they are replaced in the correct position. Note the
color location before removing.
Disengage the front rod and spring assemblies
15.
by raising the tub and removing the spring
assemblies from the platform.
Rod and Spring
Assembly
Shaft and Mode Shifter Assembly
The shaft and mode shifter assembly consists of the
shaft and tube, mode shifter cam, and mode shifter
coil. These parts come only as an assembly.
WARNING: Do not attempt to disassemble the shaft
and mode shifter assembly.
To remove the shaft and mode shifter assembly:
Remove the tub assembly from the cabinet.
1.
(See Tub Assembly.)
Remove the split ring and flat washer from the
2.
drive assembly.
Note: The tub assembly will now lean forward.
This allows clearance to reach behind the tub and
access the rear rod and spring assemblies.
Disengage the rear rod and spring assemblies
16.
by raising the rear of the tub and removing the
spring assemblies from the platform.
Pull the top of the tub assembly toward the
17.
front of the cabinet, then remove the basket
from the tub.
Split Ring
Flat Washer
Note: A new seal (part number WH02X10032) is
included with a replacement tub or shaft and mode
shifter assembly. Replace the seal when the tub has
been separated from the shaft and mode shifter
assembly.
Remove the tub assembly from the cabinet and
18.
place it on a protected surface.
(Continued next page)
– 25 –
Page 26
Invert the tub assembly on a protected surface
3.
and remove the plastic tie that holds the flood
hose to the platform.
Plastic Tie
Disconnect the mode shifter coil wire harness
4.
from the motor.
Release the compression tab that attaches the
5.
mode shifter coil wire harness retainer to the
front of the platform.
Run the belt off the drive pulley and remove the
6.
3/4" pulley nut.
Pulley Nut
Note: When replacing pulley, tighten pulley nut to
275 in. lbs. of torque.
Note: In the following step, after removing the pulley
nut, it may be helpful to grab the center core of the
drive pulley with one hand and gently tap one of the
drive pulley arms with a hammer. The drive pulley
will “pop” off the tapered shaft.
Retainer
Coil Wire Harness
Remove the drive pulley from the shaft and mode
7.
shifter assembly.
Center Core of
Pulley
(Continued next page)
– 26 –
Page 27
Remove the three 3/8" hex-head bolts from the
8.
bottom of the platform.
9.
Remove the four 1/2" hex-head bolts that attach
the platform to the tub.
Lift the platform from the tub.10.
11.
Place the platform upright on a protected
surface and remove the tub bearing washer
from the tube.
Tub Bearing Washer
(Continued next page)
– 27 –
Page 28
Remove the inverted single 3/8" hex-head bolt
LED is
green
light
12.
from the top of the platform.
Note: Torque the four 3/8" hex-head bolts to 90 in.
lbs. when reinstalling.
Inverted Bolt
Inverter/Motor Signal LED
• An LED beneath the inverter cover can be viewed
for diagnostic testing. (It is best viewed from the
right side of the motor.)
• When Motor is operating normally, and running,
the LED blinks at a constant rate of 1/2 second
on and 1/2 second off.
• When Motor is operating normally, and idle, the
LED blinks at a constant rate of 1 second on and
1 second off.
• Motor/control error condition – LED is on for .25
seconds and off for .25 seconds for a specified
number of times, during a 6-second period. The
6-second cycle repeats continuously.
Lift the shaft and mode shifter assembly from
13.
the platform.
Shaft and Mode
Shifter Assembly
(Continued next page)
– 28 –
Page 29
Inverter / Motor Test
C2
C7
C4
C7
Voltage readings:
C2 Pin 1 = Gnd
C2 Pin 3 = N
C2 Pin 5 to Pin 3 = 120 VAC
C2 Pin 6 to Pin 3 = 120 VAC with lid switch closed
C7 Pin 1 to Pin 2 = 135 VDC**
C7 Pin 1 to Pin 2 = 30 VDC**
** 135 VDC is present for approximately 15 seconds
at the beginning of the agitate program. 30 VDC is
present during the remainder of the agitate cycle.
Note: All electrical testing is done at harness plug.
Mode Shifter Coil Test
Note: The mode shift coil connects to C7
connector on inverter/motor assembly. Unplug C7
connector and check continuity. Mode shift coil
resistance value is approximately 98Ω @ room
temperature (77° F).
– 29 –
Page 30
NUMBER OF FLASHES DESCRIPTION ACTION
1 second ON Normal standby Normal
1 second OFF
.5 second ON Normal running Normal
.5 second OFF
1 FLASH Long stop time Replace motor
2 FLASH Slipping belt or hub nut/nasket loose Check belt and tighten hub
nut with impact wrench*
3 FLASH Corrupted software Replace motor
4 FLASH Mode shifter circuit failed Check mode shifter coil*
5 FLASH Not used Replace motor
6 FLASH Locked motor Make sure system is free*
7 FLASH Lid switch did not open Check lid switch*
8 FLASH Motor overheated Make sure system is free*
9 FLASH Brake resistor open Replace Motor
On 2, 4, 6, 7 & 8 FLAsh errors, if no system failures are found, replace motor.
• When excessive stop time is encountered, more than 25 seconds, the LED blinks once for ¼ second and
the off for the remainder of the 6 second period.
• When a broken coupling or slipping belt or loose hub nut/basket is detected, the LED blinks twice at a rate
of ¼ second on and ¼ second off for the remainder of the 6 second period.
• When an inverter ROM checksum error is detected, the LED blinks 3 times at a rate of ¼ second on and ¼
second off for the remainder of the 6 second period.
• When a mode shifter error occurs, the LED blinks 4 times at a rate of ¼ second on and ¼ second off for
the remainder of the 6 second period. The motor continues to operate with this error.
• When a locked rotor is detected, the washer will sit idle for 15 seconds and retry. If the motor does not
operate after 3 tries, the LED will blink 6 times at a rate of ¼ second on and ¼ second off for the remainder of the 6 second period.
• When a lid switch error is detected by the lid switch counter, 3 agitate/spin pairs with no change in state
of the lid switch, the LED will blink 7 times at a rate of ¼ second on and ¼ second off for the remainder of
the 6 second period.
• When an over temperature condition is detected in the motor, the LED will blink 8 times at a rate of ¼
second on and ¼ second off for the remainder of the 6 second period. The motor continues to operate at
reduced performance levels.
• When a brake resistor circuit error is detected in motor, the LED blinks 9 times at a rate of ¼ second on
and ¼ second off for the remainder of the 6 second period. Maximum spin speed is limited to 50 RPM.
• Critical errors will prevent the inverter/motor from operating.
To clear errors, disconnect power until an audible clicking sound is heard when the inverter capacitor
discharges (approximately 15 seconds). Open and close the lid 5 or more times in any 12 second period
within the first 30 seconds of power-up. Errors will not clear if washer is in either agitate or spin mode.
– 30 –
Page 31
Brake Test
The brake resistor is
permanently molded
into the underside of
the inverter cover.
• Tub should stop spinning 7 seconds after lid is lifted.
• If the tub takes approximately 10 seconds to stop, check drive belt for wear.
• If tub coasts to stop, brake resistor has failed and inverter/motor assembly must be replaced.
• If the tub takes longer than 25 seconds to stop, the inverter will initiate a long brake time error code.
(See Inverter/Motor Error Codes.)
– 31 –
Page 32
GE Consumer & Industrial
Appliances
General Electric Company
Louisville, KY 40225
ge.com
N.D. 07E-2227
– 32 –
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