TECHNICAL SERVICE GUIDE

C
GE Consumer Home Services Training
TECHNICAL SERVICE GUIDE
“CustomCoolTM”
MODEL SERIES:
Arctica Side by Side
PSS 23, 25, 27,
29 Cu. Ft.
PUB # 31-9075
06/01
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 appliance may result in personal injury and 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.
WARNING
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.
GE Consumer Home Services Training
Technical Service Guide
Copyright © 2001
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.
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Use and Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Mechanical Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Diagnosis Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10
Temperature Resistance Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Strip Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Control Board Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Schematic Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-15
Illustrated Parts/Exploded Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-20
–1–
Introduction
2001 Arctica SxS models are being introduced in
response to the requirement for more energy-efficient
refrigerators by mid year 2001, along with having
feature and operation enhancements.
TM
One of the innovative features is the “CustomCool ”
bin. The system will provide optimum rapid cooling,
TM
(ExpressChill ) , and safely thaw frozen foods
(ExpressThawTM).
The main system components consist of two air
dampers, a DC exhaust fan, reed switch, control
board with buzzer, 3 color light diodes, a heater, and
a thermistor. These components provide feedback
to the main refrigerator processor board, and control
the temperature and air flow in the “CustomCoolTM ”
pan at the bottom of the fresh food compartment. A
tray, which has a metal surface on one side is
provided to place the foods on for chill or thaw.
The consumer sets the temperature from the
touchpad controls at the top of the fresh food
compartment, and selects mode of operation, and
length of cycle. Air circulates from the freezer and is
heated or maintained by the thermistor and control
settings.
Three selection choices are provided for the
consumer:
•
TM
ExpressThaw Selection in lbs.
(maintains 410)
.5 lbs.(4 hours)
1.5 lbs.(8 hours)
3.0 lbs.(12 hours)
•
TM
ExpressChill Selection in 15 minute
increments
15 Minutes
30 Minutes
45 Minutes
•
TM
The CustomCool pan is tightly sealed and has a
tray which when placed in the metal plate facing
down position, helps provide the chill, and in the metal
plate up position helps to provide thaw. It also
provides a method of catching liquid when thawing
and defrosting. The seals in their orginal position are
extremely important in maintaining fresh food and
feature temperatures.
TM
SelectTemp Selection in preset
temperatures
Citrus (430F) (Heater/Fan on to maintain
430)
Produce (340F)(Double damper open, no
fan)
Meat (300F) (Double damper open, no fan)
–2–
Customer Use and Care
–3–
–4–
Operation
Operation is initated by the consumer when the
selection is made using the touch control at the top
of the fresh food section. The user will have placed
the chill/thaw tray in the proper position, metal
plate facing down for chill, and up for thaw, and
pan closed. A reed switch is mounted on the right
side of the pan to provide a completed circuit when
the pan is tightly closed. Open reed switch
initiates a “beep” from the processor located in the
CustomCoolTM pan assembly.
The warmed air is circulated through the pan to
satisfy the temperature setting. Response to drastic
temperature change is limited between two and ten
minutes. The main control board located in the rear
of the refrigerator will only respond to 8 degrees of
temperature change per minute as determined by
the resistance of the thermistor.
NOTE: DO NOT MANUALLY FORCE DAMPER
DOORS OPEN, IT WILL DAMAGE THE ASSEMBLY
Based on users input one of the three selections is
selected, with multiple inputs indexing to provide
TIME, WEIGHT, or TEMPERATURE and
countdown LED. One of three leds will light the
selection portion of the touchpad to provide
feedback and selection information to the user.
The signal is then sent to the main processor and
uses preset software parameters to provide DC
inputs to the CustomCoolTM processor board
mounted in the cover assembly.
A double door damper 12VDC operates in the
ExpressChillTM mode, and both sides open to allow
cold air to be drawn in and circulated within the lower
cover. The single damper door is also closed to
prevent loss of cold air and it is returned through the
other side of the diverter back to the freezer
compartment. The double door is cycled open and
shut to maintain the temperature selection selected
by the user, based on thermistor resistance
feedback to the main processor board.
When the selection is made a thermistor located in
the side of the lower cover sends temperature
information (resistance) to the main processor. The
processor software determines what combination
of dampers or heater need to be used to achieve
the desired setting. (See thermistor temp chart on
page 8).
Airflow is directed from a diverter in the freezer
side wall to provide cold air or drawn from fresh
food compartment, and is circulated by a 12VDC
fan in the front of the lower cover. When the
thermistor is calling for warmer air the single
damper motor is energized (12VDC) to open and
the 30 watt strip heater is turned on.
–5–
TM
CustomCoolTM feature has a third temperature preset selection which is SelectTempTM. It shows on the
control panel as Citrus (430 F), Produce (340 F) and Meat (300 F). Note airflow, damper, and fan
operation as described below.
SelectTempTM-Citrus Setting
SelectTempTM-Produce Setting
SelectTempTM-Meat Setting
NOTE: After
ExpressThawTM
cycle is complete,
the pan will reset to
the MEAT setting
(300 F) to help
preserve thawed
items until they are
used.
–6–
Mechanical Assembly and Disassembly
To Service complete
CustomCoolTM pan and
Component access.
WARNING: MAKE SURE POWER IS
DISCONNECTED!
7. Remove the freezer grill mullion (must be
removed prior to CustomCoolTM service),
(WR02X10829) from the freezer side, by
inserting a #2 Phillips screwdriver into the
center of the diverter and turning the screw
counterclockwise. (See illustration below)
To Service Components:
1. Remove 1st and 2nd bin from bottom of
fresh food section.
2. Lift up and out to remove the CustomCoolTM
front chill cover (WR17X10915).
3. Remove two screws in front of CustomCoolTM
lower cover (WR31X10006), two screws on
either side of the pan, and one screw in the
back of the housing.
4. Remove two screws holding chill water
reservoir assembly to back of refrigerator, and
plastic deflector cover.
5. In the freezer compartment lift up on freezer
baskets to remove (no need to remove rails),
to completely provide access to the lower air
duct cover.
8. The CustomCoolTM assembly is now free, slide
assembly to the right to free from refrigerator
wall. A large StyrofoamTM insert is located in
the raised end of the upper cover housing,
note position for replacement, it must be
repositioned correctly to reassemble. The
upper cover can be removed, components
exposed.
9. Slots molded into the lower pan hold the fan,
single damper assembly, and dual damper
assembly. Pull up to release and push back
into slot to reassemble.
6. Push in on the plastic lower freezer air tower,
and then push up to remove. It is attached by
two tabs one located on the backside of the
freezer and the other rest on the air diverter
asm.
–7–
NOTE: It is critical that all seals be replaced to
maintain proper temperatures in the
CustomCoolTM pan and in the refrigerator.
Several variations in the lighting components at
the CustomCoolTM bin have been used in limited
numbers. You may encounter a version that has
light tubes, colored diodes on the pan PC board,
or a colored insert. Service is obvious on each
system. The terms CustomCoolTM has been
referred to as QuickChillTM on some models.
–8–
Diagnostics and Problem Solving
PROBLEM
SOLUTION
CustomCoolTM not w orking.
1.Check customer inputs to make sure correct
function and time has been set.
2.Check installation date-need 24 hours for entire
unit to stabilize, will affect CustomCoolTM
performance.
3. With power disconnected remove top cover as
described on page 6 and check, seals, and
harness connections at CustomCoolTM bin.
ExpressThaw TM doesn't thaw.
1. Packaging-Increase time or re-package in
plastic.
2. Wrong weight selected for product-select
correct weight.
3. Item has high fat content-select a larger weight.
4. Not using the Thaw tray with metal side up.
5.Check seals on both sides of CustomCoolTM bin
and look for air leakage.
6.Check heater resistance at pin connector,
harness resistance indicates okay, open replace.
7. Check 12VCD fan in CustomCoolTM, if it shows
resistance readings replace, should show open.
ExpressChillTM doesn't chill.
1. Packaging-Increase time or re-package in
plastic.
2. Wrong weight selected for product-select
correct weight.
3. Item has high fat content-select a larger weight.
4. Not using the Thaw tray with metal sidedown.
5.Check seals on both sides of CustomCoolTM bin
and look for air leakage.
6. Make sure customer is using proper spacing
for airflow.
7.Check customer inputs to make sure correct
function and time has been set.
8.Check installation date-need 24 hours for entire
unit to stabilize, will affect CustomCoolTM
performance.
9. With power disconnected remove top cover as
described on page7 and check, seals, and
harness connections at CustomCoolTM bin.
10. Check that damper assembly is showing open
with minimal resistance readings (12VDC), if
showing resistance replace damper.
–9–
PROBLEM
SOLUTION
1. C heck that pan i s fully closed, that reed
Beeping w on't stop
switch and magnet are correctly positioned
and working.
Light in pan doesn't w ork
1. Check the bulb, check harness connection
to socket. Bulb is a screw on base, replace
with WR02X10812.
Fan is noisy in CustomCoolTM pan
1. Listen and determine if it is noisy when
running.
2. Following instructions on page 6 remove
and reseat Fan, look for loose wiring and
redress if necessary.
– 10 –
Thermistor Temperature/Resistance Chart
NOTE: The thermistor’s resistance has a negative coefficient. As the temperature
increases the thermistor’s resistance decreases.
– 11 –
Strip Circuits
– 12 –
Control Board Connections/Location
– 13 –
Schematic Wiring Diagram
NOTE: The feature named CustomCoolTM is
called QuickChillTM on some diagrams.
– 14 –
NOTE: The feature named CustomCoolTM is
called QuickChillTM on some schematics.
– 15 –
Illustrated Parts Catalog
– 16 –
920
927
945
915
925
926
947
929
943
924
928
923
946
930
932
931
937
938
940
921
944
941
933
935
934
939
– 17 –
936
View #
Cat#
Description
Usage
216
WR32X10150
BUCKET EGG
1
400
WR01X10209
WHEEL PAN COVER
6
401
WRO1X10214
SCR 10-16 PL PNP 5/8 SZN
6
407
WR32X10190
PAN MIDDLE CHILL ASM
1
409
WR32X10156
GLASS PAN COVR
1
410
WR32X10151
COVER MIDDLE PAN
1
411
GFSFR02
FRESHSAVER FILTER 2PK
1
412
WR02X10684
HOLDER FRESHSAVER
1
413
WR02X10650
HUMIDITY CONTROL
1
414
WR14X10059
GASKET PAN CRV FRONT
1
417
WR021X10633
SLIDE MIDDLE PAN COVER
1
440
WWR17X10793
WINE RACK
1
470
WR32X10149
COVER TOP PAN ASM
1
471
WR32X10147
PAN ASM TOP
1
477
WR17X10921
TRAY DRIP CHILL
1
478
WR17X10922
RACK CHILL
1
487
WR32X10189
PAN ASM CHILL
1
488
WR02X10815
BOSS SPACER
1
489
WR04X10084
NAME PLATE CHILL
1
490
WR17X10914
FRAME CHILL
1
491
WR17X10915
COVER FRONT CHILL
1
492
WR14X10101
SEAL FRONT CHILL
1
493
WR02X10807
WHEEL AND RING ASM
4
– 18 –
View #
Cat#
Description
Usage
494
WR02X10813
MAGNETCHILL
1
495
WR14X10098
SEAL SIDES CHILL
2
496
WR14X10097
SEAL AHU CHILL
1
497
WR14X10100
SEAL FRAME & AHU
1
498
WR14X10099
SEAL REAR CHILL
2
499
WR17X10918
PLATE SEAL CHILL
1
501
WR71X10249
SHELF SLIDEOUT ASM
1
503
WR02X10818
LINKAGE PAN CHILL L.H.
1
504
WR02X10819
LINKAGE PAN CHILL R.H.
1
505
WR02X10662
STOP SHELF
3
530
WR71X10247
SHELF TUCKAWAY ASM
1
915
WR02X10829
GRILL MULLION
1
920
WR31X10008
COVER UPPER
1
921
WR31X10006
COVER LOWER
1
922
1
WR60X10064
FAN CHILL
923
WR60X10063
DAMPER ASM DESUPPLY
1
924
WR60X10062
DAMPER ASM SUPPLY
1
925
WR31X10007
PLENUM TOP
1
926
WR31X10009
DUCT CAVITY CHILL
1
927
WR14X10095
GASKET MULLION DUCT
1
928
WR31X10011
GRILL VANES CHILL
1
929
WR02X10820
COVER LED CHILL
1
930
WR51X10049
HEATER THAW
1
931
WR02X10809
RELECTOR
1
932
WR14X10096
GASKET DAMPER CHILL
1
933
WR31X10012
LIGHT SOCKET CHILL
1
– 19 –
VIEW # Cat#
Description
Usage
934
WR02X10812
LAMP 40W CHILL
1
935
WR31X10010
GRILL BULB CHILL
1
936
WR14X10092
SEAL AHU CHILL
1
937
WR23X10203
HARNESS CHILL AC
1
938
WR23X10202
HARNESS CHILL AC
1
939
WR14X10090
SEAL AHU CHILL
1
940
WR23X10204
SWITCH REED CHILL
1
941
WR14X10091
SEAL AHU CHILL
1
942
WR01X10239
WASHER RETAINER CHILL
4
943
WR55X10066
BOARD ASM PAN LED
2
944
WR14X10093
GASKET LC
1
945
WR14X10094
GASKET UC
1
946
WR31X10013
NOISE WALL CHILL
1
947
WR55X10030
SENSOR TEMPERATURE
1
– 20 –