GE EWA4600G0, WCSR4170G0, GJRR4170H0, GJSR4160H0, WHDRR418G0 Technical Service Manual
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GE Consumer & Industrial
Technical Service Guide
November 2006
GE Washers With
Electromechanical Controls
and Mode Shifter Assembly
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31-9146
GJRR4170H0
GJSR4160H0
WCSR4170G0
WHDRR418G0
WJRR4170G0
WJSR4160G0
WLRR4500G0
GE Appliances
General Electric Company
Louisville, Kentucky 40225
IMPORTANT SAFETY NOTICE
The information in this service guide is intended for use by
individuals possessing adequate backgrounds of electrical,
electronic, and mechanical experience. Any attempt to repair a
major ap pli ance may result in personal injury and property
damage. The man u fac tur er or seller cannot be responsible for the
in ter pre ta tion of this in for ma tion, nor can it assume any liability in
connection with its use.
WARNING
To avoid personal injury, disconnect power before servicing
this prod uct. 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.
GE Consumer & Industrial
Technical Service Guide
Copyright © 2006
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.
– 2 –
Table of Contents
AC Line Filter ........................................................................................................................................................................ 17
Agitator .................................................................................................................................................................................. 13
Belt ........................................................................................................................................................................................... 20
Brake Test .............................................................................................................................................................................36
Component Locator Views ........................................................................................................................................... 12
Control Panel ......................................................................................................................................................................14
Control Timer ......................................................................................................................................................................14
Control Features ...............................................................................................................................................................10
Cover/Lid Assembly .........................................................................................................................................................19
Diagnostics and Service Information ...................................................................................................................... 30
Drain Pump ..........................................................................................................................................................................20
Front Panel ........................................................................................................................................................................... 19
Harness Fuse ......................................................................................................................................................................23
Inverter/Motor .................................................................................................................................................................... 22
Inverter/Motor Error Codes .......................................................................................................................................... 33
Inverter/Motor Test .......................................................................................................................................................... 35
Leveling Legs ...................................................................................................................................................................... 13
Lid Switch .............................................................................................................................................................................18
Mode Shifter Coil Test .....................................................................................................................................................35
Motor and Drive System ................................................................................................................................................ 5
Nomenclature .................................................................................................................................................................... 4
Schematic ............................................................................................................................................................................ 37
Shaft and Mode Shifter Assembly ............................................................................................................................26
Shaft and Mode Shifter Overview ............................................................................................................................. 6
Shipping Rod ....................................................................................................................................................................... 13
Suspension .......................................................................................................................................................................... 23
Temperature Selector and Options Switches ......................................................................................................16
Tub Assembly .....................................................................................................................................................................24
Tub Cover .............................................................................................................................................................................. 24
Warranty .............................................................................................................................................................................. 38
Washer Components ...................................................................................................................................................... 13
Water Level Switch .......................................................................................................................................................... 15
Water Valve ......................................................................................................................................................................... 17
– 3 –
Nomenclature
The nomenclature tag is lo cat ed under
the lid in the right rear corner.
The mini-manual is located inside the
control panel.
Nomenclature
Serial Number
The fi rst two characters of the serial number
identify the month and year of manufacture.
Example: AL123456S = January, 2006
A - JAN 2006 - L
D - FEB 2005 - H
F - MAR 2004 - G
G - APR 2003 - F
H - MAY 2002 - D
L - JUN 2001 - A
M - JUL 2000 - Z
R - AUG 1999 - V
S - SEP 1998 - T
T - OCT 1997 - S
V - NOV 1996 - R
Z - DEC 1995 - M
The letter des ig nat ing
the year re peats every
12 years.
Example:
T - 1974
T - 1986
T - 1998
– 4 –
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 bidirectional, 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 fl ash 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
– 5 –
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 fi xed 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 fi xed to the
platform and the agitator shaft rotates freely. In spin mode, the agitator shaft is fi xed to the tube and both
rotate together.
Basket
Agitator
Tub
Inverter
Motor Pulley
Motor
Drive Belt
Tube
Agitator Shaft
Platform
Mode Shifter
Drive Pulley
View from Right Side
(Continued next page)
– 6 –
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
Note: Mode shifter coil de-energized for spin/idle mode; cam teeth engaged in drive pulley.
Mode
Shifter
Cam
Drive Pulley
(Continued next page)
– 7 –
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.
MODE SHIFTER
AGITATE
PROGRAM
RUNS
(18 SEC)
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.
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
MODE SHIFTER
SPIN
PROGRAM RUNS
(30 SEC
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.
Notes:
If the washer is paused while in agitation, it is NORMAL to hear sounds for an additional 30 seconds as
the inverter control runs the Mode Shifter Spin Program to de-energize the coil and enter a pause state.
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)
– 8 –
END
CYCLE
COMPLETED
SPIN BASKET
BEGINS
SPIN CYCLE
STOP
COASTS TO A
USER PRESSES
LID SWITCH
TIMER KNOB IN
OPENS
STOP
SPIN BASKET
COASTS TO A
STOPS
(7 SEC)
SPIN BASKET
USER
PULLS
KNOB
TIMER
CLOSED
LID SWITCH
OUT
SPIN
CYCLE
CONTINUES
SPIN
MODE SHIFTER
PROGRAM RUNS
CYCLE
AGITATION
CYCLE
AGITATION
(30 SEC
ENDS
BEGINS
POWER IS
LOST
USER
PRESSES
LID SWITCH
(7 SEC
STOPS
SPIN BASKET
TIMER
KNOB IN
OPENS
POWER IS
RESTORED
SPIN
MODE SHIFTER
PROGRAM RUNS
STOPS
MOTOR
MOTOR STOPS
(30 SEC
SPIN
MODE SHIFTER
PROGRAM RUNS
USER
PULLS
TIMER
CLOSED
LID SWITCH
(30 SEC)
KNOB OUT
AGITATE
PROGRAM
MODE SHIFTER
CYCLE
AGITATION
RUNS
(18 SEC)
CONTINUES
RUNS
(18 SEC)
AGITATE
PROGRAM
MODE SHIFTER
CYCLE
START
TUB FILLS
SELECTED
PRESSURE
SWITCH
Control Logic Flowchart
OPENS
POWER IS
LOST
– 9 –
POWER IS
RESTORED
AGITATE
PROGRAM
MODE SHIFTER
RUNS
(18 SEC)
Control Features
• Add detergent
• Add diluted fabric
softener (on models
with a fabric
softener dispenser)
• Add clothes
• Select load size and
other wash options
• Select wash cycle
• Close lid
• Pull knob
Quick Start Guide
Load Size
Loosely load clothes no higher than the top row of holes in the washer basket. The water level should just cover
the clothes. Adjust the load size accordingly.
Temperature (on some models)
Select the water temperature for the wash and rinse cycles. Always follow fabric manufacturer’s care label or
instructions when laundering.
Options (on some models)
2nd Rinse Option
When you use extra detergent or bleach to clean heavily soiled clothes, you may want to use the 2nd Rinse
option. It provides a second deep cold rinse.
A
A
B
B
C
C
D
Step 1
Step 2
Step 3
Step 4
Controls
Features and appearance may vary between models.
GE Models
(Continued next page)
– 10 –
Wash Cycle—Cycle Selector Knob
The chart below will help you match the wash cycle setting with your clothing. The chart is ranked from longest to
shortest cycle time and wash intensity.
Your washer may not have all these cycles. (Cycles vary by model.)
PREWASH For removing surface dirt from heavily soiled clothes. Make sure to follow with a
regular wash cycle.
D
COTTONS For heavy to lightly soiled cottons, household linens, work and play clothes.
or WHITES
EASY CARE For wrinkle-free and permanent press items, and knits.
DELICATES For lingerie and special-care fabrics with light to normal soil.
SPIN For draining the tub and spinning water out of the clothes.
RINSE SPIN For quickly rinsing chlorine, perspiration, stains, etc., out of clothes.
15 MIN/30 MIN For very soiled clothes. Begins with agitation, soaks for a specified period of time, then moves
AUTO SOAK through the rest of the cycle automatically.
2nd RINSE Provides an automatic, second deep rinse to thoroughly remove detergent or bleach from
your clothes.
– 11 –
Front View
Component Locator Views
Pressure Hose
Suspension Rod
Inverter
Platform
Motor
Drive Pulley
Control Panel (in service position)
Water Level Switch
Drain Pump
Belt
Motor Pulley
Water Valve
AC Line Filter
Temperature
Selection
Switch
Options Switch
Timer
– 12 –
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