GE Consumer & Industrial PGSS5NFXSS Technical Service Manual

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GE Consumer & Industrial PGSS5NFXSS Technical Service Manual | Manualzz
GE Consumer & Industrial
Technical Service Guide
March 2008
Profile Bottom Mount
Double Drawer
Refrigerators
PGCS1NFXSS
PGCS1PJXSS
PGSS5NFXSS
PGSS5PJXSS
31-9166
9166
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 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 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 © 2008
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
Airflow .................................................................................................................................................................................32
Anti-Tip Floor Bracket (on 21 ft. models) .............................................................................................................20
Articulating Door Mullion .........................................................................................................................................49
Components .....................................................................................................................................................................34
Components Locator Views ......................................................................................................................................29
Condenser Fan ................................................................................................................................................................37
Control Board Connector Locator ..........................................................................................................................60
Control Diagnostics Using LCD Screen ................................................................................................................55
Control Diagnostics Using the Temperature Display On Non-Dispenser Models............................58
Control Features ............................................................................................................................................................. 7
Defrost Heater .................................................................................................................................................................44
Deli Pan Removal ...........................................................................................................................................................46
Door Closure Mechanisms .........................................................................................................................................18
EMI Filter .............................................................................................................................................................................52
Evacuation and Charging Procedure....................................................................................................................33
Evaporator.........................................................................................................................................................................41
Evaporator Fan ...............................................................................................................................................................35
Freezer Basket Removal .............................................................................................................................................24
Freezer Double Drawer (DD) Mullion Assembly ...............................................................................................50
Freezer Drawers .............................................................................................................................................................25
Freezer Drawers Mullion Troubleshooting .........................................................................................................71
Freezer/Fresh Food Mullion Heater .......................................................................................................................50
Fresh Food and Freezer Light Thermostats .......................................................................................................35
Fresh Food Damper ......................................................................................................................................................47
Humidity Sensor .............................................................................................................................................................48
Ice Level Switch .............................................................................................................................................................28
Icemaker ...........................................................................................................................................................................27
Icemaker Fill Tube Heater ..........................................................................................................................................45
Icemaker Service Test Mode .....................................................................................................................................72
Introduction ...................................................................................................................................................................... 4
Inverter................................................................................................................................................................................38
Inverter Compressor .....................................................................................................................................................40
Mullion Heaters ...............................................................................................................................................................48
Nomenclature .................................................................................................................................................................. 6
Precise Fill .........................................................................................................................................................................53
Precise Fill Troubleshooting.......................................................................................................................................70
Refrigeration Components ........................................................................................................................................31
Refrigeration System ...................................................................................................................................................31
Refrigerator Doors .........................................................................................................................................................22
Refrigerator Lights .........................................................................................................................................................17
Replacing Evaporator Using the Brazing Method...........................................................................................43
Replacing Evaporator Using the LOKRING Method........................................................................................44
Return Duct Heaters .....................................................................................................................................................45
Schematic ..........................................................................................................................................................................73
Technical Data................................................................................................................................................................. 5
Thermistors .......................................................................................................................................................................34
Troubleshooting ..............................................................................................................................................................55
Warranty............................................................................................................................................................................74
Water Dispenser and Interface ...............................................................................................................................51
–3–
Introduction
*This new Profile Bottom Mount Double Drawer Refrigerator has the following features:
•
New integrated dispenser with child lock and door alarm, combined with LCD screen, provides customer
control of temperatures and features presented in computer-style menus.
•
Precise Fill technology dispenses fresh, filtered water in accurate measurements.
•
Two coil water tanks provide added storage volume with increased surface area for quick temperature
recovery.
•
Factory installed Icemaker
with Water Filtration System
automatically creates fresh, filtered
ice cubes.
•
ClimateKeeper™ Temperature
Management System, digital
controls, and electronic sensors
give you a greater degree of control
over food preservation. An external
"air" thermistor changes the control
setting based on ambient condition
to keep the fresh food and freezer at
the correct temperature.
•
TurboCoolTM ― Rapidly cools the
refrigerator compartment in order to
more quickly cool foods.
•
Two freezer drawers add
convenience by allowing easy
access and organization of frozen
foods.
•
An articulating door mullion,
attached to the right side door,
provides a movable center mullion that maximizes access to the fresh food compartment.
•
Damper/air inlet assembly, located in the bottom of the fresh food section, creates more usable space on
the top shelf.
•
Secure-Close Door Systems - Securely pulls the doors and drawers shut, even after you release the
handles.
•
Anti-tip kit will be required for 21 cubic foot models.
•
LED Lighting - Casts a clean, beautiful light throughout the fresh food area of the refrigerator. (GE
Reveal™ Lighting in freezer.)
•
The 3-speed compressor is controlled by an inverter that receives input from the low voltage DC side
of the main control board. The inverter always has 120 VAC applied when the refrigerator is connected
to power. The main control board still makes compressor decisions based on the input of thermistors,
door-open time, and input from the LCD display. The main control also operates all other electrical
components in the refrigerator such as the water valve, fan motors, lights, etc.
* Features may vary by model.
–4–
Technical Data
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–5–
Nomenclature
PGCS1PJXSS
Exterior Color
SS - Stainless/Stainless
Brand/Product
P - Profile
Configuration
G - French Door w/Double FZ Drawer
Model Year
X - 2008
Style
C - Counter Depth
S - Standard Depth
Ice/Water
F - 1 Year Filter/Icemaker
J - External Water Dispenser, 1 Year
Filter/Icemaker
Exterior
S - Stainless Steel
Capacity
1 - 21 Cubic Foot
5 - 25 Cubic Foot
Feature Pack
N - Non-Dispenser
P - LED Lighting
The nomenclature plate is located on the upper
left wall of the fresh food compartment. It
contains the following information:
Nomenclature
•
•
•
•
•
Model and Serial
Number
Minimum Installation
Clearances
Electrical Voltage,
Frequency
Maximum Amperage
Rating
Refrigerant Charge
and Type
Mini-Manual Location
–6–
Serial Number
The first two numbers of the serial number
identify the month and year of manufacture.
Example:
AR123456S = January, 2008
A - JAN
D - FEB
F - MAR
G - APR
H - MAY
L - JUN
M - JUL
R - AUG
S - SEP
T - OCT
V - NOV
Z - DEC
2008 - R
2007 - M
2006 - L
2005 - H
2004 - G
2003 - F
2002 - D
2001 - A
2000 - Z
1999 - V
1998 - T
1997 - S
The letter designating
the year repeats every
12 years.
Example:
T - 1974
T - 1986
T - 1998
Control Features
About the controls with temperature settings.
(Models with controls inside the refrigerator)
HOME
HELP
LOCK
TURBO
COOL
ENERGY SAVER ON
FREEZER
REFRIGERATOR
PRECISE FILL
OPTIONS
0 F
37 F
ENERGY
SAVER
DOOR
ALARM
Hold for 3 Seconds
to activate Lock
(Models with controls on the door)
NOTE: The refrigerator is shipped with protective film covering the temperature controls.
If this film was not removed during installation, remove it now.
The temperature controls are preset in the factory at 37°F for the refrigerator
compartment and 0°F for the freezer compartment. Allow 24 hours for the temperature
to stabilize to the preset recommended settings.
The temperature controls can display both the SET temperature as well as the actual
temperature in the refrigerator and freezer. The actual temperature may vary slightly
from the SET temperature based on usage and operating environment.
Setting either or both controls to OFF stops cooling in both the freezer and refrigerator
compartments, but does not shut off electrical power to the refrigerator.
Changing the Temperature
For Controls-on-the-Door Models:
Models with External Dispensers:
To change the Refrigerator temperature:
Access By: Home > Refrigerator
Activate By: Using the arrows to select the desired
temperature. You must press ENTER to set the new
temperature.
To change the Freezer temperature:
Access By: Home > Freezer
Activate By: Using the arrows to select the desired
temperature. You must press ENTER to set the new
temperature.
Once the desired temperature has been set, the display will
return to the HOME screen and show the set temperatures
underneath the actual temperature display for several
seconds. Several adjustments may be required. Each time
you adjust the controls, allow 24 hours for the refrigerator
to reach the temperature you have set.
For Controls Inside the Refrigerator:
Opening the door displays the actual temperature. To
change the temperature, press either the WARMER or
COLDER touch pads until the desired temperature is
displayed.
–7–
Once the desired temperature has been set, the
temperature display will return to the actual refrigerator
and freezer temperatures after 5 seconds. Several
adjustments may be required.
Each time you adjust controls, allow 24 hours for the
refrigerator to reach the temperature you have set.
To turn the cooling system off, tap the WARMER pad for
either the refrigerator or the freezer until the display shows
OFF. To turn the unit back on, press the COLDER pad for
either the refrigerator or freezer. Then press the COLDER
pad again and it will go to the preset points of 0°F for the
freezer and 37°F for the refrigerator. Setting either or both
controls to OFF stops cooling in both the freezer and
refrigerator compartments, but does not shut off electrical
power to the refrigerator.
Models with External Dispensers:
AccessThe
By:following
Home > procedure
Options > Information
and Settings
Note:
is the only method
to turn>
the
cooling
system
Cooling
System
Offoff.
Access
By:cooling
Home >system
Options
> Information
Settings
To turn the
back
on, press theand
touch
screen>
Cooling
System
and press
the ONOff
button.
Activate
By:cooling
Pressing
ENTER.back on, press the touch
To
turn the
system
screen and press the ON button.
Activate By: Pressing ENTER.
About the home screen
The home screen is the initial screen presented after
power-up. The status bar at the top displays the status
of many of the refrigerator features. Freezer and
Refrigerator sections display present compartment
temperatures.
•
Press displayed set temperatures. Set temperatures
then can be changed.
•
Press Precise Fill for fill options.
•
Press Options to provide access to Screen
Appearance, Metric/English units, Button Beep on/off,
and Water Filter Instructions.
About the temperature controls
The temperature controls are preset in the factory at
37°F (3°C) for the refrigerator compartment and 0°F
(-18°C) for the freezer compartment. Allow 24 hours for
the temperature to stabilize to the preset recommended
settings.
Refrigerator temperatures can be adjusted between 34°F
and 43°F (1°C to 6°C), and the freezer temperatures can
be adjusted between –6°F and +7°F (–21°C to –14°C).
The temperature controls can display both the SET
temperature as well as the actual temperature in the
refrigerator and freezer. The actual temperature may
vary slightly from the SET temperature based on usage
and operating environment.
Once the desired temperature has been set, the
display will return to the HOME screen and show the
set temperatures underneath the actual temperature
display for several seconds. Several adjustments may
be required. Each time you adjust the controls, allow 24
hours for the refrigerator to reach the temperature you
have set.
Reset Attempt Above 43°F (6°C)
To change the Refrigerator temperature:
Access By: Home > Refrigerator
Activate By: Using the arrows to select the desired
temperature. You must press ENTER to set the new
temperature.
Reset Attempt Below 34°F (1°C)
Note: If an attempt is made to adjust the refrigerator set
temperature above 43°F (6°C) or below 34°F (1°C), the
+ or - arrow will disappear. If ENTER is not pressed, the
last refrigerator temperature entered will remain the set
temperature shown underneath the actual temperature
display. If ENTER is pressed, the set temperature
displayed will be the maximum of 43°F (6°C) or the
minimum of 34°F (1°C).
–8–
(Continued next page)
To change the Freezer temperature:
Access By: Home > Freezer
Activate By: Using the arrows to select the desired
temperature. You must press ENTER to set the new
temperature.
Reset Attempt Above +7°F (-14°C)
Note: If an attempt is made to adjust the freezer set
temperature above +7°F (-14°C) or below -6°F (-21°C),
the + or - arrow will disappear. If ENTER is not pressed,
the last freezer temperature entered will remain the set
temperature shown underneath the actual temperature
display. If ENTER is pressed, the set temperature
displayed will be the maximum of +7°F (-14°C) or the
minimum of -6°F (-21°C).
Reset Attempt Below -6°F (-21°C)
Options
Use Options to access Settings, Water Filter Reset, and
Cooling System Off. Access by: Home> Options.
• Press Settings to access Screen Appearance, Metric/
English units, and Button Beep on/off.
• Press Cooling System Off to turn off refrigerator.
• Press Reset Water Filter to display percent of
filter life expectancy used, replacement and order
instructions.
–9–
About TurboCoolTM
How it Works
How to Use
TurboCool™ rapidly cools the refrigerator compartment
in order to more quickly cool foods. Use TurboCool
when adding a large amount of food to the refrigerator
compartment, putting away foods after they have been
sitting out at room temperature or when putting away
warm leftovers. It can also be used if the refrigerator has
been without power for an extended period.
Press the TurboCool pad. TurboCool activated will be
indicated by an illuminated LED next to the pad. The
status bar section of the LCD will indicate TurboCool ON.
The displayed refrigerator temperature will be replaced
with TurboCool.
TurboCool LED
Once activated, the compressor will turn on immediately
and the fans will cycle on and off at high speed as
needed for eight hours. The compressor will continue
to run until the refrigerator compartment cools to
approximately 34°F (1°C), then it will cycle on and off
to maintain this setting. After 8 hours, or if TurboCool is
pressed again, the refrigerator compartment will return
to the original setting.
Note:
•
On dispenser models, the refrigerator temperature
can be changed during TurboCool, but when
attempting to change refrigerator temperature with
TurboCool on, the LED will go out and TurboCool will
be cancelled.
•
The freezer temperature is not affected and can be
changed during TurboCool.
•
When opening the refrigerator door during
TurboCool, the fans will continue to run if they have
cycled on.
– 10 –
Precise Fill (on some models)
This water dispenser is equipped with a feature called
“precise fill.” This feature allows you to choose a precise
amount of water (cups, ounces, pints, or liters) that you
would like dispensed. Access by pressing: Home > Precise
Fill > Set Amount. Activate by using the arrow buttons to
select the desired amount. Press MORE UNITS to select
between CUPS, OUNCES, LITERS or PINTS.
Select the precise amount of water you would like
dispensed. If you selected OUNCES, press the arrowpads
on either side of the display to select the number of
ounces you would like to have dispensed between
2–128 ounces. If you selected LITERS you can dispense
between 0-4 liters. If you selected PINTS you can
dispense between 0-8 pints.
If you selected CUPS, you can dispense between whole
cups (1–16 cups) or fractions of a cup (1/4–3/4 cups).
Press GO TO FAVORITES for a commonly used or saved amount. Use the arrows to select the desired amount.
Press the cup against the cradle and water will begin dispensing. It will automatically stop when the amount set has
been dispensed. The display will show there is no water left to dispense, then reset.
Note: Do not leave the dispenser unattended when water is being dispensed.
If you would like to stop dispensing water before the specified amount has been dispensed, just remove the cup from
the cradle. The display will show the amount left to dispense.
About the water filter.
Water Filter Cartridge
The water filter cartridge is located in the back upper
right corner of the refrigerator compartment.
When to Replace the Filter
On models with controls inside refrigerator, there is a
replacement indicator light for the water filter cartridge
on the temperature display. This light will turn orange
to tell you that you need to replace the filter soon. The
filter cartridge should be replaced when the replacement
indicator light turns red or if the flow of water to the
dispenser or icemaker decreases.
MODELS WITH CONTROLS INSIDE REFRIGERATOR
On models with external dispensers, the top of the
LCD screen will display, "Replace Water Filter". You can
check the status of the water filter manually and obtain
replacement instructions. Access by pressing: Home >
Options > Reset Water Filter.
Filter Bypass Plug
You must use the filter bypass plug when a replacement
filter cartridge is not available. The dispenser and the
icemaker will not operate without the filter or filter bypass
plug.
MODELS WITH EXTERNAL DISPENSERS
Note: To activate filter alerts, the main control board
monitors the accumulated time the dispenser is
used. On models with precise fill, both accumulated
time and the volume of water dispensed are used.
– 11 –
Settings
Use Settings to access Screen Appearances, Button Beep,
and Units Metric/English. Access by: Home> Options>
Settings.
• Press Screen Appearance to access Color Options,
Brightness, and Screen Saver.
• Press Button Beep to turn beep on or off.
• Press Units Metric/English to change temperature
presentation.
Cooling System Off
Access by: Home> Options> Cooling System Off. Press
Enter to turn the cooling system off. To turn the cooling
system back on, press the touch screen and press the ON
button.
Activate By: Pressing ENTER.
Note
•
Turning the cooling system OFF stops cooling in
both the freezer and refrigerator compartments, but
does not shut off electrical power to the refrigerator.
•
When the unit is turned back on, it will be set to the
standard settings and will take up to 24 hours to
stabilize.
Screen Appearance
Access by: Home> Options> Settings > Screen
Appearance.
• Press Color Options to select the color theme of the
touch screen.
• Press Brightness to adjust the brightness of the
touch screen.
• Press Screen Saver to turn on or off the screen saver
display.
– 12 –
About the help screen
The Help screen provides general information and
guidance to certain features of the refrigerator. The
help screen can also provide help regarding the Current
screen displayed. To access Help, press the Help pad.
General
Access by: Help> General.
Scroll to select help on:
Refrigerator
Freezer
Precise Fill
Reset Water Filter
Settings
Cooling System Off
Energy Saver
TurboCoolTM
Door Alarm
Status Bar
Lock
Current
Access by: Help> Current. Press Status Bar, Freezer,
Refrigerator, Precise Fill, or Options to receive help on
selected item.
– 13 –
Dispensing Functions
Defrost Cycle
The water function is controlled by the main control
board. To select this function, press the cradle on
the dispenser.
Dispenser Lock
The refrigerator utilizes an adaptive defrost cycle
that operates a glass enclosed heater to remove
frost from the evaporator. The defrost cycle has
changed from 60 hours adaptive defrost to 96 hours
adaptive defrost.
When the dispenser system is locked, no dispenser
command will be accepted. This includes the
dispenser cradle and will prevent accidental
dispensing that may be caused by children or pets.
If the touch screen, pad, or the cradle is depressed
with the system locked, it will be acknowledged with
three pulses of the LOCK LED accompanied by an
audible tone.
The control board determines the length of time the
heater is energized. It does this by monitoring the
freezer evaporator thermistor. Once the temperature
of the thermistor reaches 50°F, the control cycles
the defrost heater off. A bi-metal safety thermostat
provides a backup in the event the evaporator
thermistor fails. The safety thermostat prevents the
temperature from exceeding 140°F.
To lock or unlock communication between the
dispenser and main control board, press the LOCK
pad and hold it for 3 seconds. The LOCK LED will
flash while the LOCK pad is pressed. When the
communication is locked, the LOCK LED will be
illuminated.
Note: Refer to Pub# 31-9062 for information about
basic adaptive defrost.
Liner Protection Mode
The refrigerator incorporates a liner protection
mode for the freezer section. The freezer evaporator
fan will start and run on high speed if any door
or drawer has been open for 3 minutes. Air will
circulate into the fresh food section if the damper is
in the open position.
Lock LED
On some models, the status of other functions
selected prior to the initiation of the lock feature will
be displayed. If the lock is engaged while a mode is
active, the LED will remain on until that mode times
out.
If the lock is engaged when the filter timer expires,
the LED will come on but cannot be reset until the
lock is turned off.
The lock feature will be restored in the event of a
power disruption.
This mode is controlled by 2 timers. Timer #1
monitors door/drawer-open time. A 3-minute door/
drawer-open count begins when a door/drawer is
opened. If 3 minutes elapse before the door/drawer
is closed, the liner protection mode will become
active. Once the door/drawer is closed, timer #1
resets and liner protection mode goes into standby.
In standby, normal fan operation resumes and timer
#2 begins a 3-minute door/drawer-closed count. If
3 minutes elapse without a door/drawer opening,
liner protection mode will completely deactivate. If
a door/drawer is opened within the timer #2 door/
drawer-closed count, the remaining time in the
door/drawer-closed count will be deducted from the
timer #1 door/drawer-open count.
Automatic Quick Ice Feature
When the main board senses icemaker water valve
operation, a timer in the main board will run the
evaporator fan (when the sealed system is off) for
120 minutes and then return to normal operation.
At every water valve cycle the timer is reset to zero
and counts to 120 minutes. Increased evaporator
fan operation provides approximately even ice
production in 90° (longer compressor on-time) to 70°
(longer compressor off-time) ambients.
– 14 –
Door Alarm (non-dispenser models)
Energy Saver (on some models)
The door alarm will sound if any door/drawer is
open for more than 2 minutes. When you close the
door/drawer, the beeping stops.
This product is equipped with an energy saver
feature. The refrigerator is shipped with the energy
saver feature enabled.
Over time, moisture can form on the front surface of
the refrigerator cabinet and cause rust. If moisture
does appear on the front surface of the refrigerator
cabinet, turn off the energy saver feature by
pressing and releasing the ENERGY SAVER pad on
the control panel.
Door Alarm (dispenser models)
The door alarm will sound and the door alarm LED
will be flashing if any door/drawer is open for more
than 2 minutes. When you close the door/drawer,
the beeping stops and the LED will reset to full on.
MODELS WITH CONTROLS INSIDE REFRIGERATOR
Door Alarm LED
Energy Saver LED
When any refrigerator door/freezer drawer is left
open, the LCD screen presents information that
allows the consumer to silence the alarm without
closing the door/drawer. After pressing SILENCE
ALARM, the beeping will stop and the door alarm
LED will continue blinking until the door/drawer is
closed. If the door/drawer is left open after silencing
the alarm, periodic 5-minute reminders will occur.
The door/drawer open information reappears on the
LCD and the beeping alarm comes on again. When
the door/drawer is closed, the reminders stop and
the LED returns to full non-blinking on.
– 15 –
MODELS WITH EXTERNAL DISPENSERS
Demo Mode
The LCD screen has a DEMO MODE that can be accessed. To enter the DEMO Mode, press the HOME and
HELP pads simultaneously for 3 seconds. Upon entering, the cooling system will turn off.
The VIEW FEATURE selection provides a description and instructions on how to use 6 features of the
refrigerator. The 6 features presented are Precise Fill, LCD Screen Colors, Temperature Set, TurboCoolTM,
Energy Saver, and Door Alarm.
DEMO SCREEN allows consumer to select and change compartment temperatures and operate Precise Fill
while in the DEMO MODE. An OPTIONS setting will display Settings, Water Filter Reset, and Cooling System
Off.
To exit the DEMO MODE, press the HOME and HELP pads simultaneously for 3 seconds. Upon exiting,
the cooling system will turn on and the DEMO MODE temperature settings will be used to operate the
refrigerator. Unplugging the refrigerator does not escape the demo mode.
– 16 –
The fixture is connected to the refrigerator with a
wire harness. After removing the screws, the wire
harness can be disconnected.
Refrigerator Lights
Incandescent Lights
CAUTION: Light bulbs may be hot.
Note: Setting the controls to OFF does not remove
power to the light circuit. Reveal® appliance bulbs
are used on some models. They can be identified by
their blue color when they are not illuminated.
Disconnect
The 2 refrigerator bulbs and the single freezer bulb
are located inside light shields. Each light shield
is located at the top of the freezer or refrigerator
compartment.
To remove the bulb:
The LED light fixture is powered by a transformer
assembly that is located behind the water valve
in the machine compartment. The assembly
consists of a bracket, transformer, circuit board, and
replaceable fuse.
1. Unplug the refrigerator.
2. Grasp the shield at the back and pull out to
release the tabs at the back.
3. Rotate the shield down and then forward to
release the tabs at the front of the shield.
Note
4. After replacing light bulb with an appliance bulb
of the same or lower wattage, replace the shield.
•
Determine and correct the cause of fuse
failure when replacing the 3-amp fuse (part #
WR55X10766).
•
The replacement transformer assembly is
supplied as a complete unit. The bracket,
transformer, and circuit board cannot be
ordered separately.
•
On later production models, the fuse is
eliminated in the LED transformer assembly.
5. Plug the refrigerator back in.
Transformer Assembly Removed
Refrigerator LED Lights
Note: Setting the controls to OFF does not remove
power to the LED light circuit.
Bracket
The refrigerator utilizes 12 LED lights that are
permanently contained in a fixture and cannot be
replaced separately. The fixture is attached to the
ceiling of the fresh food section with 3 Phillips-head
screws.
Fuse
– 17 –
(Continued next page)
The transformer assembly converts 120 VAC to
approximately 36 VDC to power the LED lights. The
transformer primary winding has an approximate
resistance value of 9.9 Ω. The secondary winding
has an approximate resistance value of .9 Ω.
Transformer Assembly Components
Fuse
Circuit Board
Door Closure Mechanisms
Refrigerator Doors
The closure mechanism for each refrigerator door
consists of a hinge closure assembly attached to
the top of the cabinet, which interacts with a cam
attached to the top of each door.
To access the hinge closure assembly, it is
necessary to remove the Phillips-head screw
and the cover from the top of the hinge closure
assembly.
Transformer
To remove the LED transformer assembly:
Cover
1. Unplug the refrigerator.
2. Remove the Inverter. (See Inverter.)
3. Disconnect the 2 transformer wire harnesses.
The hinge closure assembly is held to the top of the
cabinet with two 5/16-in. hex-head screws. The cam
is attached to the top of the door with two T-20 Torx
screws.
4. Remove the two 1/4-in. hex-head screws
that attach the transformer assembly to the
machine compartment.
5/16-in. Hex-head Screws
5. Lift up and carefully remove the transformer
assembly from the machine compartment.
T-20 Torx Screw
T-20 Torx Screw
– 18 –
(Continued next page)
Door Alignment
Lower Freezer Drawer Closure Mechanisms
If the top of the doors are uneven, first try to raise
the lowest door by turning the leveling leg on the
same side as the door until the doors are even. If the
unit rocks, re-adjust the leveling legs until the unit is
stable.
Two self-closing freezer drawer cam and lever
mechanisms automatically pull the lower freezer
drawer shut when it is within 1 inch of the closed
position. The closure mechanisms are located on
the lower corner areas of the drawer and cabinet.
Each closure mechanism consists of a lever, spring,
and cam. The lever is attached with a spring to a
hook in the base channel. The cam is attached to
the bottom of the drawer with two T-20 Torx screws.
The lever interacts with the cam to complete the
closing of the drawer.
A pair of pliers can be used to remove the spring
from the hook. The spring and lever can then be
pulled out through the hole in the base channel.
If the doors remain uneven, turn the adjustable pin
to raise or lower the left door to match the right
door. Use a 1/4-in. Allen wrench to turn the pin.
Bottom of Drawer
Hook
Adjustable Pin
Cam
Lever
Spring
Roller
Upper Freezer Drawer Closure Mechanisms
The upper freezer drawer utilizes 2 closure
mechanisms that automatically pull the drawer shut
when it is within 1 inch of the closed position. The
mechanisms are built into the 2 upper drawer rail
assemblies and are not replaceable as a separate
part.
Note: Each door closer cam can be installed
incorrectly. Ensure each cam is installed on the
bottom of the drawer with the hooked end towards
the center of the drawer.
Bottom View of Drawer and Right Side Cam
Upper Drawer Closure Mechanism
– 19 –
Anti-Tip Floor Bracket (on 21 ft. models)
2 LOCATING THE ANTI-TIP
MATERIALS YOU MAY NEED (not included)
Lag Bolts
FLOOR BRACKET
A Place the anti-tip floor bracket locator template
(included inside the anti-tip kit) onto the floor
up against the rear wall, within W, and in line
with the desired location of the RH side of the
refrigerator (see Figure 1).
Anchor Sleeves
Drill Bit Appropriate for Anchors
Figure 1 – Installation Overview
For Anti-Tip Bracket Mounted on CONCRETE Floors Only
Floor – Concrete
(2 Holes)
2 Wall Holes
Floor – Wood
(2 Holes)
WARNING
Floor Bracket
to Install
RH Holes
71⁄ 4”
Base
Bracket
on the
Refrigerator
Under certain circumstances, this refrigerator
can tip forward.
Injury to persons can result.
Install Anti-Tip Bracket packed with this
refrigerator.
AVAILABLE VS. REFRIGERATOR WIDTH
Measure width of cabinet opening where
refrigerator will be placed, W.
Be sure to account for any countertop
overhang, baseboard thickness and any
clearance desired. Width, W, should not be less
than 36 inches. The refrigerator will be placed
approximately in the middle of this opening.
W
REFRIGERATOR
RH Side of
Refrigerator
Locator Template
Sheet
B Place the anti-tip floor bracket onto the locator
template with its RH floor holes lined up with
the floor holes indicated on the template sheet,
approximately 71⁄ 4” from the edge of the sheet
or the RH side of the refrigerator.
C Hold down in position and use the anti-tip floor
bracket as a template for marking the holes
based upon your configuration and type of
construction as shown in Step 3. Mark the hole
locations with a pencil, nail or awl.
NOTE:
• It is REQUIRED to use at least 2 screws to
mount the floor bracket (one on each side of
the anti-tip floor bracket). Both must be into
either the wall or the floor. Figure 2 indicates
all the acceptable mounting configurations
for screws. Identify the screw holes on the
anti-tip floor bracket for your configuration.
1 MEASURE CABINET OPENING
Rear Wall
Rear RH
Corner of
Cabinet Wall
Baseboard
Thickness
or Countertop
Overhang
(Whichever
Is Greater) Plus
Any Desired
Clearance
RH Side
Front
– 20 –
(Continued next page)
2 LOCATING THE ANTI-TIP
B CONCRETE Wall and Floor Construction:
• Anchors required (not provided):
4 each 1/4” x 1 1/2” lag bolts
4 each 1/2” O.D. sleeve anchors
• Drill the recommended size holes for the
anchors into the concrete at the center of
the holes marked in Step 2.
• Install the sleeve anchors into the drilled
holes. Place the anti-tip floor bracket as
indicated in Step 2. Remove the locator
template from the floor.
• Install the lag bolts through the anti-tip floor
bracket and tighten appropriately.
FLOOR BRACKET (cont.)
Figure 2 – Acceptable Screw
Placement Locations
Preferred Installation –
Wood
Preferred Installation –
Concrete
Minimum Acceptable #1 –
Wall Plate Stud
Minimum Acceptable #2 –
Wood Floor
C WOOD Wall and TILE Floor Construction:
• For this special case, locate the 2 wall holes
identified in Fig. 1. Drill an angled 1/8” pilot
hole (approx. as shown in Fig. 3) in the center
of each hole.
• Mount the anti-tip floor bracket using the
Minimum Acceptable Installation #1, as
illustrated in Fig. 2.
Minimum Acceptable #3 –
Concrete Floor
4 POSITIONING THE REFRIGERATOR
TO ENGAGE THE ANTI-TIP FLOOR
AND BASE BRACKETS
A Before pushing the refrigerator into the
opening, plug the power cord into the
receptacle and connect waterline (if equipped).
Check for leaks.
B Locate the refrigerator’s RH side and move
back approximately in line with the RH side of
the cabinet opening, W. This should position the
anti-tip floor bracket to engage the anti-tip
base bracket on the refrigerator.
C Gently roll the refrigerator back into the
cabinet opening until it comes to a complete
stop. Check to see if the refrigerator front lines
up with the cabinet front face. If not, carefully
rock the refrigerator forward and backward
until engagement occurs and you notice that
the refrigerator is fully pushed up against the
rear wall.
D OPTIONAL: Adjust the rear (and front) wheel
height settings to fully engage the rear anti-tip
brackets, while also aligning the refrigerator
front with the cabinet front face.
3 ANTI-TIP BRACKET INSTALLATION
A WOOD Wall and Floor Construction:
• Drill the appropriate number of 1/8” pilot
holes in the center of each floor bracket hole
being used (a nail or awl may be used if a drill
is not available) AND remove the locator
template from the floor.
• Mount the anti-tip floor bracket by fastening
the 2, or preferably 4, #10-16 hex-head
screws tightly into place as illustrated in
Figure 3.
Figure 3 – Attachment to
Wall and Floor
Rear RH Corner
of the
Refrigerator
2 Screws
Must Enter
Wood or
Metal Stud
Floor
Bracket
Wall
Wall
Plate
Stud
NOTE:
If you pull the refrigerator out and away from the
wall for any reason, make sure the anti-tip floor
bracket is engaged when the refrigerator is pushed
back against the rear wall.
Floor
– 21 –
Refrigerator Doors
Refrigerator Door Handle Removal
Note: Each refrigerator door handle is held in place
by an upper and lower fastener and locked in
position by 2 recessed 3/32-in. Allen screws. Each
fastener is located behind the handle and attached
to the door panel.
Using a 3/32-in. Allen wrench, the 2 recessed screws
can be loosened, then the handle can be pulled
straight out from the door.
Note: The following procedure applies to removing
the right-side door with dispenser. On non-dispenser
models, follow this same procedure for removing
the right-or left-side doors. There are no wires,
water lines, or center hinge covers on non-dispenser
doors.
2. Remove the screw securing the center hinge
cover.
3. Pull the left side of the hinge cover out and
remove the cover from the hinge.
Note: If the handle mounting fasteners need to be
tightened or removed, use a 3/16-in. Allen wrench.
Cover
Fastener
3/16-in.
Allen
Wrench
4. Using a flat blade screwdriver, push down and
remove the metallic water line support.
5. Using a flat blade screwdriver, push the red
plastic locking clip down and off.
3/32-in.
Allen
Wrench
Fastener
Clip
Support
(Appearance may vary)
Refrigerator Door Removal
1. Tape the doors shut with masking tape.
6. Carefully push the red collar in while pulling the
water line out from the coupling.
Water Line
*Collar
*Replacement collar unavailable
– 22 –
(Continued next page)
7. Disconnect the door wire harness.
10. Remove the tape and tilt the door away from
the cabinet. Lift the door off the center hinge
pin.
Note: Ensure that the plastic hinge pin thimble
remains on the hinge pin or inside door hinge pin
hole located in the bottom of the door.
Door Wire
Harness
8. Remove the hinge cover on top of the
refrigerator door by removing the Phillips-head
screws and pulling it up.
9. Using a 5/16-in. socket ratchet/driver, remove
the bolts securing the top hinge to the cabinet.
Then lift the hinge straight up to free the hinge
pin from the socket in the top of the door.
Cover
11. Set the door on a non-scratching surface with
the handle side up.
12. Using a 5/16-in. socket ratchet/driver, remove
the bolts securing the center hinge to the
cabinet. Set the hinge and bolts aside.
Hinge
– 23 –
Freezer Basket Removal
Basket Removal (Top Drawer)
To remove the full-width basket on top
freezer drawer models:
Open the top freezer drawer until it stops.
The freezer basket rests on the inside
tabs on the drawer slides.
Appearance may vary
Tab
Lift the front end of the basket so that the
front two alignment tabs come out of the
slide bracket first. Then rotate the front
edge of the basket up while lifting the
remaining two rear alignment tabs out
of the slide bracket.
Make sure the plastic sleeves remain
attached to the 4 slots on the slide
brackets.
When replacing the full-width basket:
Tilt the basket back and lower it down into
the drawer. Rotate the basket to a horizontal
position and press it down into the
4 alignment tabs.
NOTE: Always be sure that all 4 basket slots
are engaged in the slide brackets before
sliding back into the freezer.
Basket Removal (Bottom Drawer)
To remove the full-width upper basket:
Open the bottom freezer drawer until
it stops.
Pull the basket out to the stop location.
Lift the basket up at the front to release it
from the slides.
When replacing the full-width upper basket:
Drop the upper rear wire rail of the basket
into place behind the plastic tabs. Then drop
the front end of the basket into place and
slide the basket back into the closed position.
NOTE: Always be sure to fully close this
basket.
Lift the back up and out of the slide.
Appearance may vary
To remove the deep full-width lower basket:
Open the bottom freezer drawer until
it stops.
Lift the rear of the basket up so the two
rear alignment tabs are pulled out of the
slide bracket.
Appearance may vary
Rotate the basket up and out of the
drawer.
– 24 –
When replacing the deep full-width lower
basket:
Lower the front end of the basket into
position so that the two front alignment tabs
enter the slide bracket. Then lower the rear of
the basket into place, ensuring the two rear
alignment tabs are pressed into place in the
slide bracket.
NOTE: Always be sure that all 4 basket slots
are engaged in the slide brackets before
sliding back into the freezer.
Upper Drawer Front Vertical Adjustment
Freezer Drawers
Freezer Drawer Handle Removal
Note: Each freezer drawer handle is held in place
by a left and a right fastener, and locked in position
by 2 recessed 1/8-in. Allen screws. Each fastener
is located behind the handle and attached to the
drawer panel.
Using a 1/8-in. Allen wrench, loosen the 2 recessed
screws, then pull the handle straight out from the
door.
Note: If the handle mounting fasteners need to be
tightened or removed, use a 3/16-in. Allen wrench.
Fastener
3/16-in. Allen Wrench
Note: This following instruction is for adjusting the
upper drawer front vertically to meet appearance
needs of the customer. Both the right and left side of
the drawer front can be adjusted independently.
To adjust the upper drawer front vertically:
1. Remove the full-width basket. (See Freezer
Basket Removal.)
2. Remove the pilot screw on the side of the
drawer front that needs to be adjusted. Do one
side at a time if both need adjustment.
3. Loosen the remaining three 10-mm hex-head
screws, on the side that needs to be adjusted, 3
full turns.
4. Raise or lower the side of the drawer front,
requiring adjustment to the desired position.
Once positioned, tighten the 3 screws.
Note: Do not replace the pilot screw once the
drawer front is adjusted. It is no longer needed.
1/8-in. Allen Wrench
Loosen
Loosen
Do Not
Remove
Loosen
Pilot Screw
Remove
Left Side Bracket Shown
Upper Drawer Front Removal
To remove the upper drawer front:
1. Remove the full-width basket. (See Freezer
Basket Removal.)
– 25 –
(Continued next page)
2. Loosen (do not remove) the T-30 Torx screw at
the top of the left side door bracket.
2. Remove the pilot screw (center screw) on
the side of the drawer front that needs to be
adjusted. Do one side at a time if both need
adjustment.
3. Remove the two T-30 Torx screws from the
bottom of each door bracket.
3. Loosen the remaining four 10-mm hex-head
screws, on the side that needs to be adjusted, 3
full turns.
4. Raise or lower the side of the drawer front
to be adjusted to the desired position. Once
positioned, tighten the 4 screws.
Loosen
Note: Do not replace the pilot screw once the
drawer front is adjusted. It is no longer needed.
Remove
Lower Drawer Front Removal
To remove the lower drawer front:
1. Remove the upper and lower full-width baskets.
(See Freezer Basket Removal.)
Left Side Bracket Shown
2. Loosen (do not remove) the two 10-mm hexhead screws (1 on each side), at the top of each
door bracket.
4. Tilt the drawer front 45° out from the bottom,
then lift up and remove the drawer front from
the rail assemblies.
3. Remove the three 10-mm hex-head screws and
the 10-mm hex-head pilot screw (on each side),
located under the top screw loosened in step 2.
Note: Do not remove the Torx screws.
Loosen
Remove
Do Not Remove
Pilot Screw
Remove
Remove
5. Push the rail assemblies back into the cabinet.
Remove
Lower Drawer Front Vertical Adjustment
Note: This following instruction is for adjusting the
lower drawer front vertically to meet appearance
needs of the customer. Both the right and left side of
the drawer front can be adjusted independently.
To adjust the lower drawer front vertically:
1. Remove the upper and lower full-width baskets.
(See Freezer Basket Removal.)
Left Side Bracket Shown
4. Lift the drawer front from the rail assemblies.
5. Push the rail assemblies back into the cabinet.
Note: The pilot screw location helps to provide
proper drawer-to-rail alignment. When installing
the drawer front, lower the drawer front on the rail
assemblies, then insert the pilot screw first.
– 26 –
Icemaker
A newly installed refrigerator may take 12 to 24 hours to begin making ice.
Automatic Icemaker (on some models)
Power
Switch
Green
Power Light
Icemaker
Feeler Arm
The icemaker will produce seven cubes
per cycle―approximately 100–130 cubes
in a 24-hour period, depending on freezer
compartment temperature, room
temperature, number of door openings
and other use conditions.
See below for how to access ice and reach
the power switch.
If the refrigerator is operated before the
water connection is made to the icemaker,
set the power switch in the O (off) position.
When the refrigerator has been connected to
the water supply, set the power switch to the
l (on) position. The icemaker power light will
turn green
greenwhen
whenthe
thefreezer
lower light
freezer
drawer
switch
is
light
switch
pressed
in or when
lower
pressed
in oriswhen
the freezer
doorthe
is closed.
freezer drawer is closed.
The icemaker will fill with water when it cools
The
icemaker
fill with
water
when it
to 15°F
(–10°C). will
A newly
installed
refrigerator
cools
to 15°F
A newly
may take
12 to(-10°C).
24 hours
to begininstalled
making
refrigerator
ice cubes. may take 12 to 24 hours to
begin making ice cubes.
Accessing Ice and Reaching the
Power Switch
You will hear a buzzing sound each time the
icemaker fills with water.
Be sure nothing interferes with the sweep of
the feeler arm or the movement of the ice
level switch verticle actuator. (See Ice Level
Switch.)
When the bin fills to the level of the verticle
actuator, the icemaker will stop producing ice.
It is normal for several cubes to be joined
together.
NOTE: Each time the icemaker calls for
water the evaporator fan motor will operate
for 2 hours, resulting in increased ice
production.
NOTE: In homes with lower-than-average
water pressure, you may hear the icemaker
cycle multiple times when making one batch
of ice.
NOTE: Set the power switch to the O (off)
position if the water supply is shut off.
Ice
Bucket
To reach the icemaker power switch, open
the top freezer drawer and remove the fullwidth basket. Always be sure to replace
the basket.
To reach the power switch.
To access ice, simply open the bottom
freezer drawer and slide out the full-width
basket to expose the ice bucket.
– 27 –
To access ice.
Ice Level Switch
The ice level switch utilizes a vertical actuator to
prevent too high of an ice level in the bucket that
would interfere with lower drawer opening or
closing. The horizontal feeler arm attached to the
bottom of the icemaker now acts as a backup in
case the extra ice switch or mechanism fails to
disconnect power to the icemaker with a full bucket
of ice. It is necessary to remove the icemaker cover
and the icemaker bucket cover to remove the ice
level switch. (See Evaporator, steps 1-12.)
Ice Level Switch
Vertical Actuator
BIN NOT FULL CONDITION
BIN NOT FULL - SWITCH CLOSED POSITION
BIN FULL CONDITION
BIN FULL - SWITCH OPEN POSITION
– 28 –
Components Locator Views
Fresh Food Compartment
Non-Dispenser Model
Control Panel
Lights
Articulating
Mullion Track
Dispenser Model
Water Filter
Lights
Light Switch
Note: On non-dispenser
models, the control
panel is located in front
of the light housing at
the top of fresh food
compartment.
Light Switch
Thermistor Location
Water Line Coil
Water Line Coil
Damper
– 29 –
(Continued next page)
Freezer Compartment
Icemaker Fill Tube and Heater
Evaporator Thermistor
Over-temperature Thermostat
Evaporator Fan
Light Switch
Evaporator
Thermistor Location
Defrost Heater (recessed in bottom of evaporator)
Light Switch
Ambient Thermistor
Humidity Sensor Location
Rear View
Main Control Board
Compressor
EMI Filter
Drier
Water Valve
Condenser Fan
Inverter
Flowmeter
– 30 –
Condenser
Refrigeration System
Refrigeration Components
Capillary Tube
Evaporator
Condenser Loop
*Dryer
Compressor
Inverter
Condenser
* The dryer (not shown), is vertically positioned between the compressor and the condenser fan motor.
– 31 –
Airflow
The evaporator fan forces air through the evaporator into the freezer compartment.
Air from the evaporator can also pass through the electronic damper to the air tunnel outlet, through the
fresh food compartment, and return to the evaporator.
The damper is controlled by the main control board. When open, the damper allows the chilled air from the
freezer to move into the fresh food compartment.
Air returns from the fresh food compartment to the freezer compartment via two vents located to the left
and right of the electronic damper.
Fresh Food
Cold Air
Mixed Air
Air Return To
Evaporator
*Return Duct (1 of 2)
Evaporator
Freezer
* Return air ducts are located in the
freezer liner behind the evaporator and
are not replaceable.
– 32 –
Evacuation and Charging Procedure
WARNING:
•
•
Be careful when using a torch inside the
plastic cabinet. Use approved safety
equipment and protect the liner from
damage with the heat shield kit (part
#WX5X8926) which includes the heat shield
and thermal paste. The thermal paste is
available separately (part #WX5X8927).
Before cutting or using a torch on
refrigerant tubes, recover the refrigerant
from the system, using approved recovery
equipment.
•
Never charge new refrigerant through the
purge valve. This valve is always located on
the high-pressure side of the system.
•
Never apply heat from any source to a
container of refrigerant. Such action will
cause excessive pressure in the container.
•
Always wear goggles when working with
refrigerants and nitrogen holding charge in
some replacement parts. Contact with these
gases may cause injury.
4. Open the ball valve. Recover the purge/sweep
charge using the recovery pump and the
refrigerator compressor until a 20-in. vacuum
is attained. Close the ball valve and remove the
recovery hose.
5. Charge the system with the exact amount of R134a refrigerant specified.
6. Disconnect the power cord to the refrigerator.
This allows the pressure to equalize. After 3 to 5
minutes, the low-pressure side will be positive
and then, the hose-to-charging port can be
disconnected.
7. Using an electronic leak detector, check all
brazed joints and both schrader ports. Reinstall
caps to schrader ports.
1. Attach the hose from the R-134a charging
cylinder to the process tube port on the
compressor.
2. Evacuate the system to a minimum 20-in.
vacuum using the refrigerator compressor and
recovery pump, which is attached to the new
drier assembly.
3. Turn off the recovery pump. Close the ball valve
on the hose connected to the high-pressure
side port connection. Add 3 ounces of R-134a
refrigerant to the system. Let the refrigerator
operate and circulate the refrigerant for 5
minutes.
– 33 –
Components
At lower room temperatures, the ambient thermistor
alters the main control board’s calculations for the
target temperature. The main control board then
runs the compressor at higher speeds to get the
freezer, as well as the fresh food, to an acceptable
temperature.
Thermistors
Thermistor Values
Temperature
Degrees (F)
Temperature
Degrees (C)
Resistance in
Kilo-Ohms
-40
-40
166.8 kΩ
-31
-35
120.5 kΩ
-22
-30
88 kΩ
-13
-25
65 kΩ
-4
-20
48.4 kΩ
5
-15
36.4 kΩ
14
-10
27.6 kΩ
23
-5
21 kΩ
32
0
16.3 kΩ
41
5
12.7 kΩ
50
10
10 kΩ
59
15
7.8 kΩ
68
20
6.2 kΩ
77
25
5 kΩ
86
30
4 kΩ
95
35
3.2 kΩ
104
40
2.6 kΩ
113
45
2.2 kΩ
122
50
1.8 kΩ
131
55
1.5 kΩ
140
60
1.2 kΩ
If the external thermistor is not functioning, the
main control board default will assume the ambient
temperature is 90°F (32°C) and there will be no
adjustment to the fresh food or freezer set point.
The ambient thermistor is attached to the front
of the base (under the left side of the freezer
compartment) with a plastic wire tie.
Ambient
Thermistor
Wire Tie
Fresh Food and Freezer Thermistors
The fresh food thermistor is located in the left
wall of the fresh food compartment. The freezer
thermistor is located in the right wall of the freezer
compartment.
Note: The fresh food and freezer thermistors are
removed in the same manner.
Note: To accurately test a thermistor, place
the thermistor in a glass of ice and water
(approximately 33°F (0.5°C)) for several minutes and
check for approximately 16K Ω.
To remove the thermistor cover, insert a flat blade
screwdriver under the front of the cover and gently
lift the bottom edge until it releases from the
compartment wall.
Ambient Thermistor
Insert
– 34 –
ft
For example, in ambient below 60°F (15°C), the fresh
food temperature control will shut down properly. The
cooler room ambient assists in keeping fresh food
temperature at the preset temperature. However, the
compressor does not get enough run time to bring
the freezer down to 0°F (-18°C).
Thermistor Cover
Li
The ambient thermistor is located under the freezer
compartment and connected at J1-2 on the main
control board. (See Component Locator Views.) It
assists the main control board in compensating for
room ambient that is higher or lower than 60°F (15°C).
(Continued next page)
Evaporator Thermistor
Evaporator Fan
The evaporator thermistor is clipped to the suction
tube line of the evaporator. See Evaporator for
accessing instructions.
The position of the fan blade in relation to the
shroud is important.
Orifice
Air Flow
Motor
Evaporator Thermistor
Replacement
Should a thermistor require replacement, use
plastic bell connectors (part # WR01X10466). Fill
each connector with RTV102 silicone, then splice
a new thermistor into the harness as shown in the
illustration.
Blade tip
1.0" ± 0.05 Target
RTV102
5/16" ± 0.03
Fresh Food and Freezer Light Thermostats
Incandescent fresh food light and freezer light
housings have thermostats that interrupt power to
the lights when the thermostat temperature reaches
175°F. Power is restored when the thermostat
temperature cools to 155°F.
Each thermostat is attached to the back of each
light housing with an 11/32-in. nut.
To access each thermostat, remove the light cover
and light housing. The fresh food light housing is
held in place by 3 Phillips-head screws. The freezer
light housing is held in place by a single Phillipshead screw.
The evaporator fan is the same fan used on previous
models; however, a significant difference is that the
main control board neither requires nor receives
input from the fan feedback/rpm (blue) wire. The fan
utilizes a permanent magnet, 4-pole, DC motor that
operates at three different speeds: high, medium,
and low.
The speed of the fan is controlled by the voltage
output from the main control board (J2 pin 4 to J2
pin 3). Voltage output from the main control board
to the fan is 13.6 VDC; however, to regulate the
speed of the fan, the main control board uses pulse
width modulation (PWM).
Note: It is necessary to remove the freezer light bulb
to access the freezer light housing screw.
Replacement
Should a thermostat require replacement, use
plastic bell connectors (part # WR01X10466). Fill
each connector with RTV102 silicone, then splice a
new thermostat into the harness.
– 35 –
(Continued next page)
When operating, voltage is sent in pulses (much like
a duty cycle) as opposed to an uninterrupted flow.
This pulsing of 13.6 VDC produces effective voltage
being received at the motor, which is equivalent to a
reduction in voltage.
Note: When testing these motors:
•
You cannot test with an ohmmeter.
•
DC common is not AC common.
•
Verify 2 voltage potentials:
a. Red to white - power for internal controller
b. Yellow to white - power for fan
•
Observe circuit polarity.
•
Motors can be run for short periods using a
9 volt battery. Connect the white wire to the
negative (-) battery terminal only. Connect the
red and yellow wires to the positive (+) battery
terminal.
13.6 VDC
12.3 VDC
0 VDC
High Speed (9.5 VDC measured)
13.6 VDC
11.5 VDC
0 VDC
Medium Speed (8 VDC measured)
13.6 VDC
8.2 VDC
0 VDC
Low Speed (6.5 VDC measured)
Note: Depending on speed, the effective voltage
may range from 6.5 - 13.6 VDC.
The evaporator fan motor is positioned between the
front and rear fan motor brackets that are located
behind the evaporator cover. The evaporator cover
must be removed to access the fan motor brackets.
(See Evaporator.)
Fan speed is selected and maintained by the main
control board regulating the length and frequency
of the 13.6 VDC pulse. Temperature can cause
some fan speed variation. Fan speed can vary +/5%, depending on the temperature, with higher
temperatures causing slightly higher speeds.
Note the position of the fan blade on the motor
shaft and the locations of the fan motor mounting
grommets.
It is necessary to pull the fan blade off the motor
shaft to remove the two 1/4-in. hex head screws
that hold the front bracket to the rear bracket. A
single wire harness is connected to the fan motor.
The evaporator fan has a 4-wire connection:
White Wire - DC Common (J2 pin 3)
The white wire is the DC common wire used
for testing. During repairs, DC polarity must be
observed. Reversing the DC polarity causes a
shorted motor and/or board.
Red Wire - Supply (J2 pin 8)
Each motor uses an internal electronic controller to
operate the motor. Supply voltage from the main
control board remains at a constant 13.6 VDC.
Rear
Bracket
Blue Wire - Feedback/RPM (J2 pin 1)
On previous Arctica models, the blue wire reported
rpm (speed) information to the main control board
for speed control purposes. On this model, the board
does not require or read any feedback information
from the fan motor.
Yellow Wire - Signal (J2 pin 4)
The yellow wire is the input wire from the main
control board. The main control board provides
8.2 VDC effective voltage for low speed, 11.5 VDC
effective voltage for medium speed, and 12.3 VDC
effective voltage for high speed. The fan operates
in low speed only when the fresh food thermistor is
satisfied.
Front
Bracket
Note: To prevent excessive vibration and noise,
be sure to install the fan motor grommets in their
original positions.
– 36 –
Condenser Fan
The fan is mounted in the machine compartment
with the no-clean condenser. The fan and fan
shroud are mounted on one end of the condenser,
and the other end of the condenser is blocked.
When the fan is operating, air is pulled from the
center of the condenser, drawing air in through the
coils. The air is then exhausted over the compressor
and out the right side of the refrigerator.
Inlet air is available through the left front and left
rear of the machine compartment. A rubber divider
strip underneath the refrigerator divides the inlet
and outlet sides of the machine compartment.
The condenser fan is mounted with screws to a fan
shroud and mounting bracket that is attached to
the condenser. To access the condenser fan motor,
disconnect power from the refrigerator and remove
the machine compartment cover.
Use one of the two following methods to remove the
condenser fan motor from the refrigerator:
Method #1
1. Disconnect the condenser fan harness, then
remove the 1/4-in. hex-head screw from the
upper corner (closest to you).
2. Pull the shroud assembly slightly to disengage
from the mounting tab.
Note: In the following step, adequate clearance may
not exist to easily pull the assembly out. It may be
necessary to reverse steps 1 and 2, then proceed to
method #2.
3. Tilt the shroud assembly towards the
compressor and gently pull the assembly out.
Rear
Divider Strip
Method #2
1. Pull the condenser fan blade off the motor shaft.
Front
1/2"
2. Remove the two 1/4-in. hex-head screws that
hold the mounting bracket together.
3. Remove the front mounting bracket and note
the position of the grommet.
Housing
4. Disconnect the condenser fan harness, remove
the wire harness from the fan shroud clips, then
remove the fan motor.
Fan
Disconnect
0.375"
Motor
Air Flow
Bracket
0.50" ± 0.05
The rear access cover must be tightly fitted to
prevent air from being exhausted directly out of the
rear of the machine compartment, bypassing the
compressor.
Condenser fan speed corresponds with compressor
speed (low, medium, high) to minimize pressure
variations in the sealed system except when the
freezer temperature is 20°F above the set point. If
this condition exists (such as during initial startup),
the condenser fan operates at super high speed
while the compressor operates at medium speed.
(Continued next page)
– 37 –
COND FAN
BLUE
WHITE
RED
YELLOW
WHITE
RED
YELLOW
BLUE
The inverter is accessed from the back of the
refrigerator and is located on the left side of the
compressor behind the water valve. The water valve
and the EMI filter must be removed to access the
inverter.
To remove the inverter:
1. Remove the 1/4-in. hex-head screw that holds
the water valve and the 5/16-in. hex-head screw
that holds the EMI filter to the cabinet.
MAIN CONTROL BOARD
WHITE/SILVER (COMM)
J2-3 J2-4 J2-5
YELLOW
YELLOW/BLACK
J2-1
+12V RED
Inverter
J2-8
The speed of the fan is controlled by the voltage
output from the main control board (J2 pin 5 to J2
pin 3). Voltage output from the control board to the
fan is 13.6 VDC; however, to regulate the speed of
the fan, the main control board uses pulse width
modulation (PWM).
When operating, voltage is sent in pulses (much like
a duty cycle) as opposed to an uninterrupted flow.
This pulsing of 13.6 VDC produces effective voltage
being received at the motor, which is equivalent to a
reduction in voltage.
Fan speed is selected and maintained by the main
control board regulating the length and frequency
of the 13.6 VDC pulse.
Water
Valve
EMI Filter
EVAP FAN
2. Carefully pull the water valve and the EMI filter
out from the cabinet.
Temperature can cause some fan speed variation.
Fan speed can vary +/- 5%, depending on the
temperature, with higher temperatures causing
slightly higher speeds.
3. Disconnect the 2 wire harnesses to the inverter.
Condenser fan speed is controlled by Pulse Width
Modulation (PWM), the same method used to control
fan speed for the evaporator.
4. Remove the 1/4-in. hex-head screw and the
inverter ground wire from the cabinet.
13.6 VDC
12.0 VDC
0 VDC
Super High Speed (12.0 VDC measured)
Disconnect
13.6 VDC
Disconnect
10.5 VDC
0 VDC
Inverter
Ground Wire
High Speed (10.5 VDC measured)
13.6 VDC
7.5 VDC
0 VDC
Medium Speed (7.5 VDC measured)
13.6 VDC
5.5 VDC
0 VDC
Low Speed (5.5 VDC measured)
Note: The inverter is attached to the compressor by
a lip above the compressor terminals, a tab (located
at the bottom rear corner), and a Phillips-head
screw.
(Continued next page)
– 38 –
When checking inverter voltage output, connect
the test-meter leads to any 2 of the 3 compressor
lead wires at the inverter plug (plug should be
connected). The same reading should be measured
between any 2 of the 3 wires.
5. Remove the Phillips-head screw from the
inverter.
The inverter controls compressor speed by
frequency variation and by Pulse Width Modulation
(PWM). Changing frequency and PWM will cause
an effective voltage between 80 and 240 VAC to be
received at the compressor.
6. Lift and rotate the inverter counterclockwise.
7.
Disconnect the compressor harness from the
compressor terminals.
Lip
Disconnect
Tab
WARNING: When the refrigerator is plugged in, 120
VAC is always present at the inverter.
Note: Certain voltmeters will not be able to read
voltage output from the inverter. If no voltage or
erratic voltage is measured, it does not necessarily
indicate a faulty inverter.
The inverter receives 120 VAC line-in from the power
supply. The inverter converts this single-phase, 60
Hz, 120 VAC into 3-phase, 240 VAC, with frequency
variations between 57 Hz and 104 Hz. This voltage
is delivered to the compressor through 3 lead wires.
Each wire will carry identical voltage and frequency.
Note: The compressor leads must be connected to
measure voltage output. If the compressor wires are
not connected, or if an open occurs in one of the 3
lead wires or in the compressor, the inverter will stop
voltage output.
•
Low speed (1710 rpm) - 57 Hz
•
Medium speed (2100 rpm) - 70 Hz
•
High speed (3120 rpm) - 104 Hz
The inverter receives commands from the main
control board. The main control board will send
a PWM run signal from the J15 connector of 4-6
VDC effective voltage to the inverter (all wires must
be connected). The inverter will select compressor
speed (voltage output) based on this signal.
The main control board will only send a run signal to
the inverter when the compressor should be on.
Note: When measuring signal voltage (from the
main control board) at the inverter, a reading of 4-6
VDC will be measured with all wires connected. If the
inverter wiring is disconnected, the board output will
measure between 10-12 VDC.
The inverter will monitor compressor operation and
if the compressor fails to start or excessive current
draw (4 amps maximum) is detected, the inverter
will briefly stop voltage output. The inverter will then
make 12 consecutive compressor start attempts
(once every 12 seconds). After 12 attempts, if the
compressor has not started, an 8-minute count
will initiate. After the 8-minute count, the inverter
will attempt to start the compressor again. If the
compressor starts, normal operation will resume.
If the compressor fails to start, this process will be
repeated. Removing power to the unit will reset
the inverter count. When power is restored, the
inverter will attempt to start the compressor within
8 minutes.
The inverter has a built-in circuit protection to
guard against damage from a failed or shorted
compressor. However, if a failed compressor is
diagnosed, order a new compressor and inverter.
If the compressor fails to start after replacement,
replace the inverter.
– 39 –
•
3°F to 5°F above refrigerator set point - medium
speed.
Caution: Do not attempt to direct-start the
compressor. The compressor operates on a 3-phase
power supply. Applying 120 VAC to the compressor
will permanently damage the unit. It is not possible
to start the compressor without an inverter.
•
5.5°F to 7°F above refrigerator set point - high
speed.
The compressor is a reciprocating, variable speed,
4-pole type. It operates on 3-phase, 80 to 240 VAC
within a range of 57 to 104 Hz.
The use of 3-phase power eliminates the need for
the relay, capacitor, and individual start and run
windings; therefore, the start, run, and common
pins found on conventional compressors are not
applicable on this 3-phase model. Compressor pin
functions are identical and compressor lead wire
configuration is of no importance. A resistance of
9 Ω to 11 Ω should be read between any 2 of the
3 pins. Should an opening occur in the compressor
winding or should one of the compressor lead wires
become open or disconnected, the inverter will stop
voltage output to the compressor.
Inverter Compressor
Note: Certain voltmeters will not be able to read
voltage output or frequency from the inverter.
Compressor wattages at various speeds are:
•
LOW - 65 watts
•
MED - 100 watts
•
HIGH - 150 watts
The compressor is controlled by the inverter, which
receives its signal from the main control board.
Varying the frequency to the inverter changes the
compressor speed.
Note: The compressor will run at medium speed if
the freezer temperature is 20°F or more above the
setpoint.
Compressor operation is extremely smooth and
cool. The compressor exterior may be slightly higher
than room temperature while operating; therefore, it
may be difficult to detect a running unit.
To verify that the compressor is running:
TAB 1
J15-1 J15-2
Main Control
Board
BROWN
ORANGE
BLACK
BROWN
ORANGE
BLACK
BLUE
RED
10
BROWN
Note:
WHITE
10
10
WHITE
RED
AC
Disconnect power from the unit and place a hand
on the compressor. Reconnect power and feel for
a vibration when the compressor tries to start. It
may take up to 8 seconds before the compressor
attempts to start.
•
When ordering a replacement compressor, order
both the compressor and inverter. Replace
the compressor first. If, after compressor
installation, the compressor fails to start,
replace the inverter.
•
When servicing the compressor, it is important
to dress the wiring to keep low voltage DC wiring
and 120 VAC wiring separate.
INVERTER
COMPRESSOR
Compressor speed is based on the temperature
set point in conjunction with the specific cabinet
temperature. Speeds are selected according to
the following cabinet temperatures, with freezer
temperature being the primary:
•
7°F to 19.5°F above freezer set point = high
speed.
•
4.5°F to 6.5°F above freezer set point = medium
speed.
•
1°F to 4°F above freezer set point = low speed.
•
1°F to 2.5°F above refrigerator set point = low
speed.
– 40 –
Evaporator
The following components must be removed in the
appropriate order to access the evaporator:
7. Loosen the two 1/4-in. hex-head screws, then
lift and remove the icemaker from the mounting
bracket.
1. Unplug the refrigerator.
2. Remove the freezer baskets. (See Freezer Basket
Removal.)
3. Remove the upper and lower freezer drawer
fronts. (See Freezer Drawers.)
Note
•
•
For added accessibility to freezer components,
it may be necessary to remove the freezer
drawers mullion assembly. (See Freezer Drawers
Mullion Assembly.)
The icemaker cover is held in place with 2
Phillips-head screws and 2 grommets attached
to the evaporator cover.
4. Remove the 2 Phillips-head screws from the
icemaker cover.
Note: The ice bucket cover is held in place with 2
Phillips-head screws and a grommet attached to the
evaporator cover.
8. Remove the 2 Phillips-head screws from the ice
bucket cover.
9. Slide the ice bucket cover to the right and lower
it.
5. Slide the icemaker cover to the right and lower it
away from the icemaker.
Note: The icemaker mounting bracket is held in
place with two 1/4-in. hex-head screws and a
grommet attached to the left side of the freezer.
6. Using a small flat blade screwdriver, expand the
2 clips and disconnect the ice level switch wire
harness from the icemaker harness.
10. Remove the two 1/4-in. hex-head screws, then
slide the bracket towards the front of the freezer.
– 41 –
(Continued next page)
11. Using a small flat blade screwdriver, expand the
2 clips and disconnect the ice level switch wire
harness from the cabinet receptacle.
15. Pull the front of the rail assembly towards the
center of the freezer and unhook the assembly
from the side of the freezer.
16. Remove the Phillips-head screw and the mullion
heater harness cover.
12. Remove the icemaker cover and ice bucket
cover from the freezer.
Note: The ice level switch is held to the icemaker
cover with 2 Phillips-head screws, and the switch
wire harness is attached to the ice bucket cover with
2 plastic ties.
17. Extend both lower drawer rail assemblies to the
open position.
18. Remove the five 1/4-in. Hex-head screws that
attach each lower rail assembly to the freezer
wall.
Ice Level Switch
Plastic Ties
Note: Each upper drawer side rail assembly is held
in place by four 1/4-in. hex-head screws and a hook
that locks into an opening in the side of the freezer.
19. Remove the light shield. (See Refrigerator Lights.)
20. Remove the Philips-head screw and the fan
cover from the evaporator cover.
13. Extend both upper drawer rail assemblies to the
open position.
14. Remove the four 1/4-in. hex-head screws from
each upper rail assembly.
Light Shield
Fan Cover
– 42 –
(Continued next page)
Note: The evaporator cover is attached to the
evaporator compartment with two 1/4-in. hex-head
screws, 3 bottom tabs, and 8 snap tabs located on
the back of the cover.
21. Remove the two 1/4-in. hex-head screws that
attach the evaporator cover to the fan bracket.
Replacing Evaporator Using the Brazing
Method
Parts Needed:
•
•
•
•
Freezer Evaporator
Drier Assembly
Access Tube (part # WJ56X61)
Heat Shield Kit (part # WX5X8926)
Caution: A heat shield kit is required for this
procedure to prevent damage to the plastic interior
(liner) of the freezer compartment.
Bottom Tab
Bottom Tab
Bottom Tab
22. Grasp and pull the right side of the fan opening
towards the front of the freezer to release the
right side snap tabs.
Note: If it is determined that the epoxy joints (the
transition joint between the aluminum and copper
jumper) on the freezer evaporator assembly are
defective, then LOKRING connectors can be used to
repair the joints. Refer to Service Guide #31-9067 for
complete instructions on using the LOKRING method
of installing an evaporator.
1. Unplug the refrigerator.
2. Remove the rear access cover and evacuate the
sealed system.
3. Remove components necessary to expose the
evaporator. (See Evaporator.)
4. Note the location of the thermistor and overtemperature thermostat on top of the old
evaporator and remove.
5. Remove heater from bottom of evaporator.
Bundle remaining wires and tape high on the
back wall of freezer.
6. Apply a liberal amount of thermal paste to
suction line where it enters the rear wall of
freezer.
7. Insert the brazing shield behind the joints of the
evaporator inlet and outlet to protect the liner.
23. Pull out the left side of the cover and carefully
remove it from the evaporator compartment.
8. Use torch to heat the joints of the evaporator
inlet and outlet, separate the joints and clean
the suction line and the capillary surface.
9. Loosen the 2 Phillips-head screws that hold the
evaporator in place. Note locations of the heat
transfer wires at the sides of old evaporator.
These are needed to transfer heat to the turns of
the evaporator during the defrost cycle. Remove
the transfer wires and save for new evaporator
installation. Remove the old evaporator.
10. Install the new evaporator and tighten the 2
Phillips-head screws.
– 43 –
(Continued next page)
11. Connect the evaporator inlet and outlet to the
suction line and capillary tubes.
Defrost Heater
12. Check that the thermal paste is still on the
suction line where it enters the rear wall of the
freezer. If not, apply paste. In addition, apply
thermal paste around epoxy joints on the new
evaporator to prevent the heat from damaging
joint integrity.
13. Move the brazing shield behind the capillary and
suction line joints. Protect the freezer floor from
molten solder during brazing.
14. Angle torch so that flame is directed away from
rear wall when brazing. Braze suction line and
capillary to new evaporator.
The defrost heater is a single-tube, glass-enclosed
radiant heater. It is held in place by 2 tabs on the
evaporator (1 on each side) and by a ceramic
and wire support. The defrost heater has an
approximate resistance value of 31.5 Ω.
To remove the defrost heater:
1. Access the freezer evaporator. (See Evaporator.)
Note:
•
During defrost, the drain probe assists in
preventing the drain from icing closed. During
assembly, the probe must be installed on the
evaporator and inserted in the drain to prevent
drain freeze-up.
•
A ceramic and wire support prevents the heater
from sagging and touching the metal drain
trough if the glass is broken.
15. Remove the brazing shield. Clean and inspect all
joints.
16. Remove the old drier by cutting the halo loop
as close as possible to the drier. Install the
new drier assembly making sure that there is
sufficient space between the tubing.
17. Install the access tube. Clean and inspect joints.
2. Remove the ceramic and wire support and the
drain probe from the evaporator.
18. Replace the heater supplied with the evaporator.
Reinstall the over-temperature thermostat,
thermistor, and heat transfer wires at the sides
of new evaporator. Dress wiring.
19. Evacuate and charge the system. Use original
factory charge quantity of R-134a. (See
Evacuation and Charging Procedure.)
Ceramic and Wire
Support
20. Replace all component parts in the freezer.
21. Reinstall the rear access cover.
Drain Probe
Replacing Evaporator Using the LOKRING
Method
3. Bend the aluminum tabs back (located at each
end of the defrost heater) and lower the heater
out of the evaporator.
Parts Needed:
•
•
•
•
Freezer Evaporator
Drier Assembly
Access Tube (part # WJ56X61).)
LOKRING Connectors (part # WR97X10044)
4. Disconnect 2 lead wires and remove the heater.
Note: If it is determined that the epoxy joints (the
transition joint between the aluminum and copper
jumper) on the freezer evaporator assembly are
defective, then LOKRING connectors can be used to
repair the joints. Refer to Service Guide #31-9067 for
complete instructions on using the LOKRING method
of installing an evaporator.
– 44 –
Return Duct Heaters Test
Icemaker Fill Tube Heater
If open duct heaters are suspected, perform the
following:
The fill tube heater is energized during the
defrost cycle when the defrost thermostat is
closed. Remove the evaporator cover to access
the icemaker fill tube heater. (See Evaporator.)
Disconnect the fill tube heater wire harness. The
resistance of the fill tube heater is approximately
2644 Ω.
1.
Return Duct Heaters
A return duct heater has been added to each of
the 2 fresh food compartment return air ducts. The
heaters prevent water from freezing and blocking
the air flow in the ducts. Restricted ducts can cause
warm fresh food temperatures. (See Airflow.)
With the over-temperature thermostat closed,
test for approximately 27 Ω (the equivalent
resistance of this parallel circuit) between J9
and J7-9 .
2. For a resistance reading other than
approximately 27 Ω, remove the evaporator
cover (See Evaporator.), disconnect the fill tube
heater, and one lead from the defrost heater.
Insert a volt ohm meter into the fill tube heater
receptacle. A reading of approximately 220 Ω
indicates both heaters are good.
Note: The return duct heaters are integral to the
foamed in place internal ductwork of the refrigerator
and are not replaceable.
Return Duct
Outlets
The heaters operate with 120 VAC and each heater
has an approximate resistance value of 440 Ω.
The heaters are in a parallel circuit consisting of
2 duct heaters, icemaker fill tube heater, and the
defrost heater. The line voltage wires of the duct
heaters and the fill tube heater are connected to
the blue wire of the defrost heater. The neutral wires
of the heaters go through the over-temperature
thermostat. The 2 duct heaters and the fill tube
heater are energized (along with the defrost heater)
during the defrost cycle when the over-temperature
thermostat is closed.
– 45 –
Deli Pan Removal
How to Remove and Replace the Deli Pan
To remove:
Remove the fruit and vegetable drawers.
Remove the Deli Pan cover.
Pull the drawer out to the stop position.
Swing Locks
To replace:
Make sure all four swing locks are in the
unlock position.
Place the sides of the drawer into the
drawer supports, making sure the swing
locks fit on the drawer slots.
Lock all four swing locks by rotating them
to the lock position.
Lift the lid to access the 4 swing locks.
Lower the lid and slide in the drawer.
Rotate all four swing locks to the unlock
position.
Lift the front of the drawer up and out.
– 46 –
Replace the fruit and vegetable drawers.
Fresh Food Damper
A damper assembly is used to control airflow
from the freezer into the fresh food compartment.
It is located on the back wall of the fresh food
compartment, behind the deli and crisper drawers.
The damper assembly consists of a 12 VDC
motorized damper (sealed inside a styrofoam air
tower), inlet gasket, and a plastic air tower cover.
The assembly is held in place with one 1/4-in. hexhead screw at the top, and 2 pins at the bottom that
fit into the liner.
5. Pull up on the damper assembly until the pins
are out of the holes in the liner, then tilt it toward
the front of the refrigerator.
To remove the fresh food damper:
1. Remove the fruit and vegetable crisper drawers
and the crisper drawer cover and frame
assembly.
Caution: The glass inserted in the deli pan cover
and frame may easily separate. Care should be
taken when removing the deli pan cover and frame
assembly.
2. Partially open the deli pan, lift and remove the
deli pan cover and frame.
Air Tower Cover
6. Disconnect the damper motor wire harness.
Note: For added accessibility to the fresh food
damper, it may be helpful to remove the Deli Pan
drawer. (See Deli Pan Removal.)
Wire Harness
Inlet Gasket
3. Pull the deli pan out to the fully open position.
4. Remove the 1/4-in. hex-head screw from the top
of the air tower cover.
Air Tower
Air Tower Cover
Note:
Pin
•
The damper assembly (part # WR17X12456)
includes the motorized damper, inlet gasket, air
tower, and the air tower cover.
•
To prevent moisture and ice from accumulating
in the fresh food compartment, ensure the inlet
gasket is seated correctly between the bottom
of the air tower and the liner.
Pin
– 47 –
Humidity Sensor
This device senses the humidity in the kitchen and
assists the control board in adjusting the wattage
outputs of the 3 mullion heaters accordingly.
The humidity sensor receives 5 VDC from the
main control board and sends back 1 to 3.6 VDC,
depending on the relative humidity. There is no
resistance check for the humidity sensor.
The humidity sensor is contained in a housing that
is attached to the front of the base with a Phillipshead screw.
To access the humidity sensor, it is necessary to
remove the 2 Phillips-head screws and the base
grille from the refrigerator.
Mullion Heaters
The refrigerator utilizes 2 AC mullion heaters and
1 DC mullion heater. They are the articulating door
mullion (DC), freezer/fresh food mullion (AC), and
freezer face DD (Double Drawer) mullion heaters
(AC).
The 3 mullion heaters are controlled by the main
board software logic. The main control board takes
into account the percentage of room humidity,
room temperature, and either freezer or fresh food
temperatures. As the room humidity increases,
the amount of voltage supplied to the heaters
is increased to keep the mullion surfaces from
sweating. At lowest humidity, the articulating door
mullion and freezer/fresh food mullion may turn off
completely, but the freezer face DD mullion heater
will always have some voltage present.
If the energy saver is off, all heaters are on.
Humidity Sensor
When the energy saver is on, the articulating door
mullion and the freezer/fresh food mullion are off.
The freezer face mullion heater is on at a lower rate.
The freezer face DD mullion heater will not operate
with either freezer drawer in the open position.
Humidity Sensor-Front View
Every 20 minutes, the main control board utilizes a
"duty cycle" to monitor and react to the condition
of the humidity sensor. Control board corrections, if
needed, are made at a specific time period during
the duty cycle.
If the control detects a failed humidity sensor, and
the energy saver is off, all mullion heaters will be
operated at 100%.
Humidity Sensor-Rear View
If the control detects a failed humidity sensor, and
the energy saver is on, the freezer drawers mullion
heater will be operated and cycle at a rate of 21%
on time and 79% off time. The articulating door and
freezer/fresh food mullion heaters will remain off.
Sweat or frost on mullion surfaces indicate
malfunctioning heaters, wiring, or control board.
– 48 –
(Continued next page)
Note: If the Energy Saver light is on, then the
articulating door mullion heater is disabled.
Articulating Door Mullion
The articulating door mullion consists of the mullion,
heater, internal spring, and 2 hinges. It is available
only as an assembly.
The articulating door mullion is attached to the
right side door, and provides a movable center
mullion that maximizes access to the fresh food
compartment. With both refrigerator doors closed
or only the left side door opened, the mullion stays
in position. When the right side door is opened, the
spring-loaded mullion is activated to fold against
the handle side of the door liner.
The heater operates on DC voltage when both
doors are closed. It is necessary to close the left
side door and close the right side light switch to
test for the operating voltage of 0 to 13.6 VDC. (See
Mullion Heaters.) The resistance of the heater is
approximately 24 Ω.
To replace the articulating door mullion assembly it
is necessary to remove the 2 Phillips-head screws
from the top and bottom hinges. The wire harness
can be pulled out from the recess in the bottom of
the door and disconnected.
The pin on top of the mullion and the track, located
at the top center front of the refrigerator, ensure
proper mullion bar alignment upon closure of the
right side door.
Top Hinge
Door Closed Pin in Track
Door Opening Pin Exiting Track
Bottom Hinge
Wire
Harness
– 49 –
7. Remove the four 3/16-in. Allen-head shoulder
bolts (2 on each side) that attach the mullion to
the freezer walls.
Freezer Double Drawer (DD) Mullion
Assembly
The freezer double drawer mullion assembly
consists of a mullion heater bonded to a mullion
face. The mullion face is attached to the mullion
with 4 Phillips-head screws. The mullion is inserted
in 2 recesses and attached to the freezer walls with
four 3/16-in. Allen-head shoulder bolts.
To remove the freezer double drawer mullion
assembly:
1. Unplug the refrigerator.
2. Remove the freezer baskets. (See Freezer Basket
Removal.)
3. Remove the upper and lower freezer drawer
fronts. (See Freezer Drawers.)
8. Pull out the mullion from the recesses (1 on
each side) in the freezer walls.
4. Remove the 4 Phillips-head screws that attach
the mullion face to the mullion.
9. Disconnect the mullion wire harness.
Wire
Harness
5. Separate the mullion face from the refrigerator
cabinet.
6. Disconnect the mullion face wire harness and
ground wire.
Note: To test the operation of the mullion heater,
disconnect the humidity sensor. Within the next 20
minutes (duty cycle), the control will recognize the
open humidity sensor, the heater will then receive
voltage, and the mullion will get warm.
Wire Harness
Freezer/Fresh Food Mullion Heater
Ground
Wire
The freezer/fresh food mullion heater is foamed in
place and is located behind the cabinet flange and
between the freezer and fresh food compartments.
Note: If the Energy Saver light is on, then the
freezer/fresh food mullion heater is disabled.
The heater is not replaceable.
– 50 –
2. Carefully lower the interface and disconnect the
2 wire harnesses.
Water Dispenser and Interface
The water dispenser assembly incorporates the
interface used for temperature control and features.
The interface has 2 tabs that hold it to the cradle
support. The tabs are located above 2 slots located
behind the bottom of the interface.
3. Remove the 4 Phillips-head screws and the
cradle support from the dispenser recess.
To remove the water dispenser assembly:
1. Using a flat blade screwdriver, push up on each
tab, then pry the bottom of the interface away
from the dispenser recess.
Slot
Slot
Wire Harnesses
4. Lift and remove the drip tray.
Slot
Note: There are 2 plastic wedges that help hold the
top of the trim flush against the door panel. If the
wedges are not installed the trim will fit loosely.
5. Using a pair of long-nose pliers, pull out the 2
plastic wedges.
Wedge (1 of 2)
– 51 –
(Continued next page)
Note: The dispenser trim is held to the dispenser
recess by 5 retaining tabs along each side and 2 at
the top.
6. Using your hands or a plastic putty knife,
carefully lift or pry the dispenser trim away from
the dispenser recess.
EMI Filter
The EMI Filter is accessed from the back of the
refrigerator and is located on the left side of the
compressor.
To remove the EMI filter:
1.
Remove the 5/16-in. hex-head screw that
attaches the bracket to the cabinet.
2. Pull the bracket out and remove the 1/2-in. nut.
5/16-in.Screw
1/2-in. Nut
Dispenser Switch (rear view)
3. Cut the 2 plastic wire ties that hold the EMI filter
to the bracket.
4. Mark and disconnect the wires from the EMI
filter.
Wire Tie
Switch
Wire Tie
– 52 –
Precise Fill
The Precise Fill mode allows the user to select a specific volume to be dispensed in either cups, ounces, pints,
or liters.
Overview
The Precise Fill design places a flowmeter between the water valve and the dispenser to measure water flow
through the system. The flowmeter sends a signal to the main control board. The main control interprets
the signal, turning the water valve off at the appropriate time. The quantity dispensed is displayed on the
dispenser board.
When the dispenser is activated, the flow of water through the meter rotates a paddle. The paddle contains
a magnet which passes by a sensor within the flowmeter. The sensor counts the number of revolutions and
sends that information to the main control board. For example, 1 Cup = Nr (number of revolutions). The main
control board cycles the water valve relay based on the information.
WATER
SOURCE
WATER
FILTER
*Outlet
DISPENSER
SPOUT
*Inlet
WATER
VALVE
USER
DISPENSER
BOARD
FLOWMETER
PADDLE
WATER
TANK COIL
DOOR
CONNECTION
MAIN
BOARD
CUSTOMER INTERFACE
SIGNAL
WATER
* Note directional flow arrows on flowmeter, and
mark tubing and couplers before disassembly.
– 53 –
(Continued next page)
Note: The flowmeter is attached to a mounting
bracket that is held to the cabinet with a 1/4-in.
hex-head screw and 2 tabs. It may be necessary to
use a stubby nutdriver or 1/4-in. ratchet wrench and
socket.
Flowmeter
The flowmeter is located in the machine
compartment behind the water valve. The water
valve must be removed to access the flowmeter.
3. Remove the 1/4-in. hex-head screw from the
flowmeter bracket.
Water Valve
Flow Meter
4. Lift and rotate the flowmeter bracket
counterclockwise to disengage the 2 tabs at the
top of the bracket.
Outlet Tube
Inlet Tube
5. Carefully pull out the bracket and flowmeter.
To remove the flowmeter:
6. Mark and disconnect the inlet and outlet tubes
from the flowmeter connectors.
Caution: It may be necessary to bend the process
tube in order to remove the water valve. If it is
necessary to bend the process tube, use extreme
caution.
7. Disconnect the wire harness from the flowmeter.
8. Remove three 1/4-in. hex-head screws from the
mounting bracket.
1. Remove the 1/4-in. hex-head screw that holds
the water valve to the cabinet.
Outlet Tube
2. Lift and move the valve to the right to disengage
the tab at the top of the valve.
Wire Harness
Connector (1 of 2)
Inlet Tube
Process Tube
Note:
•
When replacing or repairing the water line
tubing, ensure the end of the tubing is cut
square and fully inserted into the water valve
and flowmeter connectors.
•
Do not discard mounting bracket. The mounting
bracket is not available as a replacement part.
•
Connectors are identical (part # WR02X10471).
– 54 –
Troubleshooting
Control Diagnostics Using LCD Screen
The LCD screen has a self-diagnosis mode that can be accessed and will assist the technician to test certain
functions of the LCD screen, dispenser, and freezer fan. This mode can aid the service technician in quickly
identifying failed or improper operation of certain components and systems.
Control diagnostics using the LCD screen do not use error codes to identify problems. Instead, the LCD screen
displays a list of components or systems to be checked if a problem is detected.
To enter the self-diagnosis mode, press and hold in the HOME, TURBO COOL, and ENERGY SAVER pads. The
SELF DIAGNOSIS screen will appear. Press SOFTWARE VERSION, FACTORY TEST, or HMI TEST. Select EXIT to
exit the self diagnosis mode.
Self Diagnosis
SOFTWARE VERSION
FACTORY TEST
Description
Verifies using latest main and HMi board software.
Test EEprom status.
Turns on the freezer fan.
Calibrate - calibrates the touch screen assembly of
LCD screen
Scan Screen - Starts LCD screen quality scan. Operates
the TurboCoolTM, Energy Saver, Door Alarm, and Lock
LEDs.
HMI TEST
EXIT
Returns to Factory Test screen.
Operates all pad LEDs, and screen LCD. Press any pad
or the glass cradle to check switch contact.
Press the LCD screen to return to the Self Diagnosis
screen.
Returns refrigerator back to normal mode.
– 55 –
(Continued next page)
Diagnostics Aid Kit
The diagnostic aid kit may assist the technician to functionally test individual components.
A diagnostic aid kit can be assembled and consists of a key pad temperature control assembly and wire
harness. The parts required are WR55X10390 and WX05X14999.
Using the kit, diagnostics can be performed by accessing the main board on the back of the refrigerator and
plugging into the harness extended from the board.
Note: After plugging in the diagnostic aid kit, if the display is blank, press and release any of the temperature
pads. The display will show actual temperatures.
Diagnostic Aid - Main Board Access
Enter the diagnostic mode by pressing both the freezer temperature (COLDER and WARMER) pads and
the refrigerator temperature (COLDER and WARMER) pads simultaneously. All four pads must be held
for approximately 3 seconds. Blinking "0"s in both displays indicate the refrigerator has entered the test
mode. Remove fingers within 5 seconds and press any middle pad to lock-in the test mode. The blinking
"0"s will change over to solid (non-blinking) "0"s when the test mode is locked in. You can now test specific
components using the chart.
Enter the appropriate display numbers as
shown in the table and press any pad other
than the temperature pads to activate that
test mode.
– 56 –
(Continued next page)
Freezer
Display
Fresh
Food
Display
0
7
Diagnostics
Results
Control and Sensor System Test
Checks each
thermistor in order.
1
0
Damper Test
Damper will open for
10 seconds.
1
1
Fan Test
Cycles through each
fan for 5 seconds.
1
2
100% Run Time
Sealed system on
100% of the time.
Times out after 1
hour.
1
3
Prechill Test
Starts prechill mode.
Unit returns to
normal on its own.
1
4
Defrost Test
Toggles on the
defrost cycle. See
Note 2.
1
5
Main Control Reset/Test Exit
Causes a system
reset and exits test
mode.
Comments
See Note 1.
Test will not start for
approximately 10
seconds after pad is
pressed.
Must press again to
turn heater off. See
Note 2.
Note 1: Display order is #1 = Fresh Food Thermistor, #2 = Ambient Thermistor, #3 = Freezer Thermistor, #4 =
Freezer Evaporator Thermistor, #5 = Invalid (not used).
Thermistor test results are: P = Pass, 0 = Fail, S = Short to 5 VDC, B = Defective board (replace main control).
Note 2: You must enter the defrost test again to toggle the defrost heater off at the end of the test. The
heater will not come on if the evaporator thermistor is above 50°F (21°C).
– 57 –
Control Diagnostics Using the Temperature Display On Non-Dispenser Models
The temperature display has a self-diagnosis mode that can be accessed and will help the technician to test
certain functions of the temperature display, defrost heater, damper, and interior fan. This mode can aid the
service technician in quickly identifying failed or improper operation of certain components and systems.
Control diagnostics using the display does not use error codes to identify problems. Instead, the temperature
display allows access to components or systems to be checked if a problem is detected.
The temperature display must be in an active mode before entering the self-diagnosis test. If the display is
blank, press any temperature button once, then release it. The display will show actual temperatures.
Enter the diagnostic mode by pressing both the freezer temperature (COLDER and WARMER) pads and
the refrigerator temperature (COLDER and WARMER) pads simultaneously. All four pads must be held for
approximately 3 seconds. Blinking "0"s in both the freezer and refrigerator sections of the display indicate
the refrigerator has entered the test mode. Remove fingers within 5 seconds and press any pad to lock-in
the test mode. The blinking "0"s will change over to solid (non-blinking) "0"s when the test mode is lockedin. Failure to lock-in the test mode within 30 seconds will time out the test and return the refrigerator to the
normal cooling mode.
Temperature Display On Non-Dispenser Models
FZ
Display
FF
Display
0
1
Showroom Mode
0
2
Display Combined HMI
Software Version
0
3
Display Main Control
Software Version
0
4
Combined HMI to Main
communications
Mode
Comments
When activated, a tone will sound briefly and the display
will flash 1 time. The cooling system stops operation. All
HMI functions will operate normally.
Temperature to main controls communications test. A
coded software version is displayed. Dispenser model
will show two numbers. See Note 1. Internal display
model will test for Pass/Fail. Should show "P". If the
format is violated, the display will read "99".
Temperature to dispenser communications test. A coded
software version is displayed. Dispenser model will show
two numbers. See Note 1. Internal display model will
show "F" (no dispenser board). If the format is violated,
the display will read "99".
Dispenser to main controls communications test.
Dispenser model will test for Pass/Fail. Should show "P".
Internal display will show "F" (no dispenser board).
– 58 –
(Continued next page)
FZ
Display
FF
Display
0
6
HMI Self Test
0
7
Sensor Self Test
1
1
1
0
1
2
Open Damper
Fan Speed Test
100% Run Time
1
3
Enter Pre-chill
1
4
Toggle the State of
Defrost
1
5
Refrigerator Reset
1
6
Test Mode Exit
1
7
Degree C/F
Mode
Comments
Illuminates all LEDs and numerical segments. FF and FZ
displays will initially display "88". Pressing temperature
pads will change initial display. Remaining pads pressed
will toggle the LED associated with that pad. Filter pad
repeatedly pressed will toggle red, green, and amber
LEDs. To exit HMI Self Test, press and hold both FF
temperature pads simultaneously for 3 seconds, then
release.
Checks each thermistor in order and displays "P" for
pass, "0" for open circuit, or "S" for shorted circuit. See
Note 2.
Damper will open, pause briefly, and then close.
Cycles through each fan for 5 seconds.
This mode runs the sealed system 100% of the time.
This test will automatically time out after 1 hour of run
time. A refrigerator reset may exit this mode.
This places the freezer in pre-chill mode essentially
issuing a “Force Prechill” command to the main control.
It will return to normal operation on its own. This
command will be ignored if the refrigerator is set to OFF/
Standby mode.
Each time any button on the temperature board other
than four temperature adjust buttons is pressed, the
status of the FZ defrost heater will toggle. See Note 3.
Causes a soft reset to occur at both the Combined HMI
and the Main board.
Causes a soft reset to occur at the Combined HMI
board. Note: This will not terminate test modes that the
main board is maintaining as a result of the service
diagnostics mode. To terminate test modes, Refrigerator
Reset should be used.
Internal display model only. Used to set the temperature
unit of measure. The current mode is displayed on the
FF display (“C” of “F”). Use either of the FF slew keys
to adjust the mode. Press any key other than the FF
slew keys to set the unit of measure to the displayed
selection.
Note 1: The first two digits are numbers. The second two digits are numbers that correspond to a letter (01=a,
02=b, 03=c,...26=z). For example, 61 and 9= a software version of 61i. 41 and 10=a software version of 41j.
Note 2: Display order: 1 = Fresh Food Thermistor, 2 = Air Thermistor, 3 = Freezer Thermistor, 4 = Evaporator
Thermistor, 5 displayed = No Thermistor installed at this location.
Note 3: The heater will not come on if the evaporator thermistor is above 50°F.
– 59 –
Control Board Connector Locator
Main Control Board
J13
J10
J4
J15
J14
J9
J3
J11
J2
K4
J18
J7
J12
J5
J1
K3
J10 and J13 - Earth (Ground)
J15 - Inverter
J9 - Defrost Heater, Fill Tube Heater, Return Duct
Heaters
J14 - Flowmeter
J11 - Line (L1)
J7 - FF and FZ Interior Lighting Circuits, Dispenser
Water Valve (Dispenser Models Only)
J12 - FF/FZ Mullion Heater
J18 - Icemaker Water Valve (Automatic Quick Ice)
K3 - Water
K4 - Defrost
J2 - Fan Common, Evaporator Fan, Condenser
Fan, Mullion Bar Heater, Model Selector
J5 - Humidity Sensor
J4 - Display Board
J3 - Damper
J1 - Fresh Food Thermistor, Ambient Thermistor,
Freezer Thermistor, Evaporator
Thermistor, Model Selector
– 60 –
(Continued next page)
– 61 –
Dispenser Water Valve
FZ Light Switches
FF Light Switches
Freezer Drawers Mullion Heater
AC Neutral In
J10
1
J7
Not Used
K2
NOT
USED
K3
WATER
Icemaker
J12
Water Valve
FF/FZ Mullion Heater
K7
NOT
USED
K5
NOT
USED
DEFROST
K4
J9 Defrost Heater, Return Duct Heaters
Fill Tube Heater
J11
Line (L1)
J8
J18
K1
NOT
USED
EARTH
2
J6
1
J19
Humidity Sensor
Humidity Sensor
Fan +12V
Evaporator Fan (RPM)
Model Selector
Fan Common
Evaporator Fan
Condenser Fan
Articulating Door Mullion Htr
Flowmeter
Flowmeter
Inverter Common
Inverter Output
6
1
8
1
5
1
J5
J2
J14
1
J15
J13
9
1
10
1
5
1
J1
J3
J4
EARTH
FF Thermistor
Ambient Thermistor
FZ Thermistor
FZ Evaporator Therm
+5V
Model Selector
Model Selector
Model Selector
Model Selector
Damper
Damper
Damper
Damper
Comm. 2-Way Digita
Comm. +12V
Comm. Common
MAIN CONTROL BOARD TROUBLESHOOTING
The main control board is located at the back of the refrigerator, above the machine compartment on the
right-hand side. (See Control Board Connector Locator.)
CONTROL BOARD PIN DEFINITIONS
CONNECTOR
J1
J1
J1
J1
J1
J1
J1
J1
J1
PIN INPUT OUTPUT
FUNCTION
1
VDC
Feedback of fresh food thermistor value. Thermistor value is NTC
(when temperature drops, resistance value increases), causing
return voltage reduction. This value is used to cycle evaporator
fan, compressor, and condenser fan. Feedback is filtered to
respond to 8 degrees of change per minute.
2
VDC
Feedback of ambient thermistor value. Thermistor value is NTC
(when temperature drops, resistance value increases), causing
return voltage reduction. This value is used to assist the main
control board in compensating for room ambient higher or lower
than 60°F. Feedback is filtered to respond to 8 degrees of change
per minute.
3
VDC
Feedback of freezer thermistor value. Thermistor value is NTC
(when temperature drops, resistance value increases), causing
return voltage reduction. This value is used to cycle evaporator
fan, compressor, and condenser fan. Feedback is filtered to
respond to 8 degrees of change per minute.
4
VDC
Feedback of evaporator thermistor value. Thermistor value is NTC
(when temperature drops, resistance value increases), causing
return voltage reduction. This thermistor value is used to cycle
the defrost heater on during defrost when temperature is below
defrost value and off when the temperature is above defrost value.
This value is also read during power-up to determine if refrigerator
goes into pulldown mode or cycle continuation. Feedback is
unfiltered and responds immediately.
5
VDC
Provides 5 VDC for thermistors.
6
VDC
Model Selector.
7
VDC
Model Selector.
8
VDC
Model Selector.
9
VDC
Model Selector.
– 62 –
(Continued next page)
CONTROL BOARD PIN DEFINITIONS
CONNECTOR
J2
J2
J2
J2
J2
J2
J2
PIN INPUT OUTPUT
FUNCTION
Feedback from evaporator fan. Evaporator fan feedback is not
1
HZ
read for this application.
Model pin selection.
2
VDC
3
VDC
Evaporator fan and condenser fan common.
4
VDC
Output to evaporator fan for motor operation. Effective voltage is
determined by pulse width modulation.
5
VDC
Output to condenser fan for motor operation. Effective voltage is
determined by pulse width modulation.
6
VDC
Output to articulating door mullion heater. Effective voltage is
determined by main control board.
8
VDC
Provides 12 VDC supply voltage to all fans, constant voltage.
CONTROL BOARD PIN DEFINITIONS
CONNECTOR
J3
J3
J3
J3
PIN
1
2
3
4
INPUT OUTPUT
VDC
VDC
VDC
VDC
FUNCTION
Damper-6 VDC
Damper-6 VDC
Damper-6 VDC
Damper-6 VDC
CONTROL BOARD PIN DEFINITIONS
CONNECTOR
J4
PIN
1
J4
J4
2
3
INPUT
Digital
Communication
OUTPUT
Digital
Communication
VDC
VDC
– 63 –
FUNCTION
2-way communication between main control
board and LCD board.
12 VDC supply.
DC common.
(Continued next page)
CONTROL BOARD PIN DEFINITIONSS
CONNECTOR PIN
J5
5
J5
6
INPUT OUTPUT
FUNCTION
VDC
Humidity Sensor - 5 VDC
VDC
Humidity Sensor - 1 to 3.6 VDC. (Proportionate to the relative
humidity at the sensor location.)
CONTROL BOARD PIN DEFINITIONS
CONNECTOR PIN INPUT OUTPUT
FUNCTION
J7
3
VAC
Switched L1 voltage to the dispenser water valve - 120 VAC.
J7
5
VAC
Switched L1 voltage to the freezer drawers mullion heater - 120
VAC.
J7
6
VAC
Receives L1 input from fresh food door switches when either
door is open. This input is used for evaporator fan control, liner
protection mode calculations, door alarm calculations, and
adaptive defrost calculations.
J7
7
VAC
Receives L1 input from freezer drawer switches when either
drawer is open. This input is used for evaporator fan control, liner
protection mode calculations, door alarm calculations, adaptive
defrost calculations and some door interlock functions.
J7
9
VAC
AC neutral in.
– 64 –
(Continued next page)
CONTROL BOARD PIN DEFINITIONS
CONNECTOR
J9
PIN
1
INPUT OUTPUT
FUNCTION
VAC
Switched L1 voltage to the defrost circuit - 120 VAC. A timer (main
control software), counts how long this circuit is energized and
uses this information to determine if the next defrost cycle is
adaptive or nonadaptive.
CONTROL BOARD PIN DEFINITIONS
CONNECTOR PIN
J11
1
INPUT OUTPUT
FUNCTION
VAC
Constant L1 voltage to control board circuits - 120 VAC input
potential for switched L1 terminals.
CONTROL BOARD PIN DEFINITIONS
CONNECTOR
J12
PIN
1
INPUT OUTPUT
FUNCTION
VAC
Switched L1 voltage to the FF/FZ mullion heater - 120 VAC.
CONTROL BOARD PIN DEFINITIONS
CONNECTOR
J14
J14
PIN
2
4
INPUT OUTPUT
FUNCTION
VDC
Flowmeter - 6.5-7 VDC when first activated.
VDC
Flowmeter - 13.6 VDC.
CONTROL BOARD PIN DEFINITIONS
CONNECTOR
J15
J15
PIN
1
2
INPUT OUTPUT
FUNCTION
VDC
Output voltage to the compressor inverter - 4 to 6 VDC from J15
pin 1 to J15 pin 2.
VDC
CONTROL BOARD PIN DEFINITIONS
CONNECTOR
J18
PIN
1
INPUT OUTPUT
FUNCTION
VAC
Voltage from icemaker water valve - 120 VAC.
– 65 –
(Continued next page)
Main Control Board
J2 Connector (Low-Voltage DC Side)
Blue/White
White/Silver
Component
Termination
Evaporator fan
tachometer
Model
Fan Common
Input
Common
4
Yellow/Black
Evaporator fan
Output
5
Yellow
Condenser fan
Output
6
Black/White
Articulating Door
Mullion Heater
Output
8
Red
Fan supply voltage
(12 VDC)
Output
Wire Color
1
Blue
2
3
Input/
Output
Pin-to-Pin Voltage Reading
Input
Not applicable to this model.
J2 pin 2 to pin 3 = 12 VDC
J2 pin 3 to pin 8 = 12 VDC
J2 pin 4 to pin 3 = 12.3 VDC (high), 11.5 VDC
(med), 8.2 (low) Note: (See Evaporator Fan.)
J2 pin 5 to pin 3 = 12 VDC (super high), 10.5
VDC (high), 7.5 VDC (med), 5.5 VDC (low)
J2 pin 6 to pin 8 = 0 to 13.6 VDC (Voltage
varies with room relative humidity, ambient
temperature, and FF/FZ control settings.)
J2 pin 8 to pin 3 = 12 VDC
Main Control Board
J3 Connector (Low-Voltage DC Side)
Pin
Wire Color
1
2
3
4
Yellow
Red/Black
White/Brown
Blue/Yellow
Component
Termination
Damper
Damper
Damper
Damper
Input/
Output
Output
Output
Output
Output
Pin-to-Pin Voltage Reading
J2 pin 3 to J3 pin 1 = 6 VDC
J2 pin 3 to J3 pin 2 = 6 VDC
J2 pin 3 to J3 pin 3 = 6 VDC
J2 pin 3 to J3 pin 4 = 6 VDC
J13
EARTH
J4
Comm. 2-Way Digital
Comm. +12V
Comm. Common
1
J15
Inverter Common
Inverter Output
5
1
J3
J14
Damper
Damper
Damper
Damper
1
1
Flowmeter
Flowmeter
Low Voltage DC
120 VAC
Pin
5
J2
Evaporator Fan (RPM)
Model Selector
Fan Common
Evaporator Fan
Condenser Fan
Articulating Door Mullion Htr
1
Fan +12V
8
10
J1
1
J5
1
Humidity Sensor
Humidity Sensor
9
FF Thermistor
Ambient Thermistor
FZ Thermistor
FZ Evaporator Thermistor
+5V
Model Selector
Model Selector
Model Selector
Model Selector
6
Main Control Board
J1 Connector (Low-Voltage DC Side)
Pin
Wire Color
1
2
3
4
5
Red/Blue
Yellow
Red/White
Blue/White
Blue
Component
Termination
Fresh food thermistor
Ambient thermistor
Freezer thermistor
Freezer evaporator thermistor
Thermistor supply voltage (5 VDC)
– 66 –
Input/
Output
Input
Input
Input
Input
Output
Pin-to-Pin Voltage Reading
N/A
N/A
N/A
N/A
J1 pin 5 to J2 pin 3 = 5 VDC
(Continued next page)
Main Control Board
J4 Connector (Low-Voltage DC Side)
Pin
Wire Color
1
2
3
Black
Red
Blue
Component
Termination
Temperature control
Temperature control
Temperature control
Input/
Output
Communication
Output
Common
Pin-to-Pin Voltage Reading
2-way digital communication
J4 pin 2 to pin 3 = 12 VDC
J4 pin 2 to pin 3 = 12 VDC
J13
EARTH
J4
Comm. 2-Way Digital
Comm. +12V
Comm. Common
1
J15
Inverter Common
Inverter Output
5
1
J3
J14
Damper
Damper
Damper
Damper
1
1
Flowmeter
Low Voltage DC
120 VAC
Flowmeter
5
J2
Evaporator Fan (RPM)
Model Selector
Fan Common
Evaporator Fan
Condenser Fan
Articulating Door Mullion Htr
1
Fan +12V
8
10
J1
1
J5
1
Humidity Sensor
Humidity Sensor
9
FF Thermistor
Ambient Thermistor
FZ Thermistor
FZ Evaporator Thermistor
+5V
Model Selector
Model Selector
Model Selector
Model Selector
6
Main Control Board
J14 Connector (Low-Voltage DC Side)
Pin
Wire Color
2
4
White
Black
Component
Termination
Flowmeter
Flowmeter
Input/
Output
Output
Output
Pin-to-Pin Voltage Reading
J 14 pin 2 to J 4 pin 2 = 6.5 to 7 VDC when first activated
J 14 pin 4 to J 4 pin 2 = 13.6 VDC
Main Control Board
J5 Connector (Low-Voltage DC Side)
Pin
Wire Color
5
6
Blue
Yellow
Component
Termination
Humidity Sensor
Humidity Sensor
Input/
Output
Output
Input
Pin-to-Pin Voltage Reading
J5 pin 5 to J4 pin 3 = 5 VDC
J5 pin 6 to J4 pin 3 = 1 to 3.6 VDC
Main Control Board
J15 Connector (Low-Voltage DC Side)
Pin
Wire Color
1
2
Red
White
Component
Termination
Compressor inverter
Compressor inverter
Input/
Output
Output
Output
– 67 –
Pin-to-Pin Voltage Reading
J 15 pin 1 to J15 pin 2 = 4 to 6 VDC
J 15 pin 2 to J15 pin 1 = 4 to 6 VDC
(Continued next page)
Main Control Board
J7 Connector (High-Voltage Side)
Yellow
Blue/White
Component
Termination
Dispenser Water Valve
Freezer Drawers Mullion Heater
Input/
Output
Output
Output
6
Purple
Fresh Food Door Light Switch
Input
7
Red
Freezer Drawer Light Switches
Input
9
Orange
Neutral
Neutral
Pin
Wire Color
3
5
Pin-to-Pin Voltage Reading
J 7 pin 3 to J7 pin 9 = 120 VAC
J 7 pin 5 to J7 pin 9 = 120 VAC
J 7 pin 6 to J7 pin 9 = 120 VAC
(Fresh food door open)
J 7 pin 7 to J7 pin 9 = 120 VAC
(Freezer drawer open)
Neutral
J10
EARTH
J8
Not Used
J9 Defrost Heater, Return Duct Heaters
Fill Tube Heater
J11
Line (L1)
K4
J7
J18
Icemaker
J12
Water Valve
FF/FZ Mullion Heater
Dispenser Water Valve
Low Voltage DC
FZ Light Switches
FF Light Switches
Freezer Drawers Mullion Heater
120 VAC
AC Neutral In
1
Main Control Board
J9 Connector (High-Voltage Side)
Pin
Wire Color
J9
Blue
Component
Termination
Defrost Heater
Input/
Output
Output
– 68 –
Pin-to-Pin Voltage Reading
J9 to J7 pin 9 = 120 VAC
(Continued next page)
Main Control Board
J11 Connector (High-Voltage Side)
Pin
Wire Color
J11
Brown
Component
Termination
L1 Input
Input/
Output
Input
Pin-to-Pin Voltage Reading
J 11 to J7 pin 9 = 120 VAC
J10
EARTH
J8
Not Used
J9 Defrost Heater, Return Duct Heaters
Fill Tube Heater
J11
Line (L1)
K4
J7
J18
Icemaker
J12
Water Valve
FF/FZ Mullion Heater
Dispenser Water Valve
Low Voltage DC
FZ Light Switches
FF Light Switches
Freezer Drawers Mullion Heater
120 VAC
AC Neutral In
1
Main Control Board
J12 Connector (High-Voltage Side)
Pin
Wire Color
J12
White
Input/
Output
Output
Component
Termination
FF/FZ Mullion Heater
Pin-to-Pin Voltage Reading
J 12 to J7 pin 9 = 120 VAC
Main Control Board
J18 Connector (High-Voltage Side)
Pin
Wire Color
J18
White
Component
Termination
Icemaker Water Valve
Input/
Output
Input
– 69 –
Pin-to-Pin Voltage Reading
J 18 to J7 pin 9 = 120 VAC
– 70 –
Yes
Is there 6.5 -7 VDC
between red and white
wires on flowmeter when
1st activated
Yes
No
No
No
No
Is there
13.6 VDC
between red and black
wires on J4 at dispenser
board
Yes
Check:
1.) Wiring between dispenser and main control board
2.) Main control board
Yes
No
Does dispenser display
light up?
Check:
1.) Wiring between flowmeter and main control board
2.) Main control board
Replace flowmeter
Check:
1.) Wiring between flowmeter and J14 on main control board
2.) Main control board
Replace dispenser board
Is there 13.6 VDC
between red and black
wires on flowmeter
Yes
Does normal water
dispense work?
START
NO PRECISE FILL WATER
Yes
Check:
1.) Water supply
2.) Water valve
3.) Frozen water tank
4.) Wiring between water valve and main control board
5.) Main control board
Note:
If no water is flowing through the flowmeter or no
communication is occurring between the flowmeter
and the main control board, the dispenser will display
“0” and beep after 2 seconds.
Check:
1.) Fresh Food door switches
2.) Dispenser switch
3.) Wiring connections at main control board
No
Is there
115 VAC
between yellow and orange
wires on the water valve
blue coil?
Precise Fill Troubleshooting
Freezer Drawers Mullion Troubleshooting
FREEZER DRAWERS MULLION SWEATING OR FROSTED
START
Does freezer light go out
when drawers closed?
No
Check:
1.) Light switches (contacts open when drawer closed)
2.) Wiring between light switches and main control board
3.) Main control board
Ye s
Disconnect mullion heater
Is heater resistance
approximately 827 ohms?
No
Replace mullion heater
Ye s
Is there 120 VAC*
between orange and red
wires on the disconnected
mullion heater harness?
Ye s
No
Is there 120 VAC*
between orange and red
wires on the disconnected
mullion heater
extension harness?
Is there 120 VAC*
between J7-5 and J7-9
on the main control board?
No
Replace main control board
Ye s
Ye s
Check:
1.) Wiring
2.) Harness connections
No
Check:
1.) Wiring
2.) Harness connections
*NOTE
The following conditions must be met before 120 VAC will be present:
1.) Energy Saver mode must be off
2.) Humidity sensor disconnected
3.) Both freezer drawer light switches in the drawer closed position
4.) Main control board "Duty Cycle" will initiate 120 VAC to the mullion heater in 2 to 20 minutes.
– 71 –
Icemaker Service Test Mode
The electronic icemaker has a service test mode that can be utilized by the service technician in order to test
basic operation of the icemaker. The service test mode consists of a harvest cycle followed immediately by a
water fill. The harvest cycle is entered, regardless of icemaker temperature or arm position.
To enter the service test mode:
Note: The lower freezer drawer light switch must be in the drawer closed position.
1. Turn the power switch to the off position and wait 20 seconds. (The green power light will be unlit.)
2. Turn the power switch to the on position. (The green power light will be lit.)
3. Push the feeler arm from the out position to the in position and back again 3 times and only 3 times
within 20 seconds.
Power
Switch
Green
Power Light
Icemaker
Feeler Arm
Note: If the icemaker has already started a harvest cycle and the arm is moving, it may be impossible to
properly move the arm and enter the service mode without allowing it to reset and powering up again. If the
icemaker is allowed to go through it’s normal harvest cycle, it will take 10-15 minutes after it dumps the ice
for water to enter the icemaker.
While in the harvest mode, the heater will remain on for a minimum of 20 seconds. The water fill cycle will
initiate the first fill (5.1 seconds) without waiting for the mold to prechill. Only one water fill occurs during the
service mode. The icemaker will exit the service test on its own and enter the normal freeze cycle.
– 72 –
Note: 21’ and 25’ models have the white wire of the water valve connected to the main board at J18. The main board senses the water valve
turning on and then runs the evaporator fan for 120 minutes. If the water valve cycles again in 120 minutes, the timer is reset to count another
120 minutes. Otherwise the fan will cycle off and on in a normal mode. This logic provides increased ice production.
Schematic
– 73 –
Warranty
Refrigerator Warranty. (For customers in the United States)
All warranty service provided by our Factory Service Centers,
or an authorized Customer Care® technician. To schedule service,
on-line, 24 hours a day, visit us at ge.com, or call 800.GE.CARES
(800.432.2737). Please have serial number and model number
available when calling for service.
For The Period Of:
Staple your receipt here.
Proof of the original purchase
date is needed to obtain service
under the warranty.
GE Will Replace:
GE and GE PROFILE MODELS:
One Year
From the date of the
original purchase
Any part of the refrigerator which fails due to a defect in materials or workmanship.
During this limited one-year warranty, GE will also provide, free of charge, all labor and
related service to replace the defective part.
Thirty Days
(Water filter, if included)
From the original
purchase date of
the refrigerator
Any part of the water filter cartridge which fails due to a defect in materials or workmanship.
During this limited thirty-day warranty, GE will also provide, free of charge, a replacement water
filter cartridge.
GE PROFILE MODELS ONLY:
Five Years
(GE Profile models only)
From the date of the
original purchase
Any part of the sealed refrigerating system (the compressor, condenser, evaporator and
all connecting tubing) which fails due to a defect in materials or workmanship. During this
limited five-year sealed refrigerating system warranty, GE will also provide, free of charge,
all labor and related service to replace the defective part in the sealed refrigerating system.
What GE Will Not Cover:
■ Service trips to your home to teach you how to use
the product.
■ Replacement of the water filter cartridge, if included, due
to water pressure that is outside the specified operating
range or due to excessive sediment in the water supply.
■ 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.
■ Loss of food due to spoilage.
■ Replacement of house fuses or resetting of circuit
breakers.
■ Damage caused after delivery.
■ Replacement of the light bulbs, if included, or water filter
cartridge, if included, other than as noted above.
■ Damage to the product caused by accident, fire, floods
or acts of God.
■ Incidental or consequential damage caused by possible
defects with this appliance.
■ Product not accessible to provide required service.
EXCLUSION OF IMPLIED WARRANTIES—Your sole and exclusive remedy is product repair as provided in
this Limited Warranty. Any implied warranties, including the implied warranties of merchantability or
fitness for a particular purpose, are limited to one year or the shortest period allowed by law.
This warranty is extended to the original purchaser and any succeeding owner for products purchased for
home use within the USA. If the product is located in an area where service by a GE Authorized Servicer is
not available, you may be responsible for a trip charge or you may be required to bring the product to an
Authorized GE Service location for service. In Alaska, the warranty excludes the cost of shipping or service calls
to your home.
Some states do not allow the exclusion or limitation of incidental or consequential damages. This warranty
gives you specific legal rights, and you may also have other rights which vary from state to state. To know
what your legal rights are, consult your local or state consumer affairs office or your state’s Attorney General.
– 74 –

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