8178066A R-95 Whirlpool 2001 K Model Counter Depth Side

CONSUMER SERVICES TECHNICAL
EDUCATION GROUP PRESENTS
R-95
2001 K MODEL
COUNTER DEPTH
SIDE-BY-SIDE REFRIGERATOR
WITH VARIABLE CAPACITY
COMPRESSOR
MODELS:
GC5SHGXKB00
GC5SHGXKQ00
GC5SHGXKS00
GC5SHGXKT00
GC5THGXKB00
GC5THGXKQ00
GC5THGXKT00
JOB AID
Part No. 8178066A
FORWARD
This Job Aid, “Whirlpool 2001 K Model Counter Depth Side-By-Side Refrigerator With Variable
Capacity Compressor” (Part No. 8178066A), provides the technician with information on the
installation and service of the Side-By-Side Refrigerator. It is to be used as a training Job Aid and
Service Manual. For specific information on the model being serviced, refer to the “Use and Care
Guide,” or “Tech Sheet” provided with the refrigerator.
The Wiring Diagrams and Strip Circuits used in this Job Aid are typical and should be used for
training purposes only. Always use the Wiring Diagram supplied with the product when servicing
the unit.
GOALS AND OBJECTIVES
The goal of this Job Aid is to provide detailed information that will enable the service technician to
properly diagnose malfunctions and repair the Side-By-Side Refrigerator.
The objectives of this Job Aid are to:
• Understand and follow proper safety precautions.
• Successfully troubleshoot and diagnose malfunctions.
• Successfully perform necessary repairs.
• Successfully return the Side-By-Side Refrigerator to its proper operational status.
WHIRLPOOL CORPORATION assumes no responsibility for any repairs made
on our products by anyone other than Authorized Service Technicians.
Copyright © 2002, Whirlpool Corporation, Benton Harbor, MI 49022
- ii -
TABLE OF CONTENTS
Page
GENERAL ............................................................................................................................... 1-1
Safety First ......................................................................................................................... 1-1
Electrical Power Supply & Grounding Requirements ................................................... 1-1
Electrostatic Discharge (ESD) Sensitive Electronics .................................................... 1-2
Model & Serial Number Designations ................................................................................ 1-3
Model & Serial Number Label And Tech Sheet Locations................................................. 1-4
Specifications ..................................................................................................................... 1-5
Refrigerator Warranty ........................................................................................................ 1-7
INSTALLATION INFORMATION ........................................................................................... 2-1
THEORY OF OPERATION ..................................................................................................... 3-1
COMPONENT ACCESS ......................................................................................................... 4-1
Component Locations ........................................................................................................ 4-1
Removing The Touch/Display Board, The Insert And Overlay,
& The Motorized Air Door ............................................................................................... 4-2
Removing A Thermistor ..................................................................................................... 4-4
Removing A Door Switch ................................................................................................... 4-5
Removing A Light Socket .................................................................................................. 4-6
Removing The Water Reservoir ........................................................................................ 4-7
Removing The Ice Maker And The Auger Motor & Crush/Cube Solenoid ......................... 4-9
Removing The Evaporator Fan Motor, The Bimetal,
The Defrost Heater, & The Evaporator ......................................................................... 4-11
Removing The Condenser Fan Motor ............................................................................. 4-15
Removing The Compressor ............................................................................................. 4-16
Removing The Inverter Assembly .................................................................................... 4-17
Removing The Main Control Board Assembly ................................................................. 4-18
Removing The Water Dispenser Fill Tube ....................................................................... 4-20
Removing The Water Valve ............................................................................................. 4-22
Removing The Freezer Door Handles & Freezer Door ................................................... 4-23
Removing A Roller ........................................................................................................... 4-25
COMPONENT TESTING ........................................................................................................ 5-1
Thermistor .......................................................................................................................... 5-1
Evaporator Fan Motor ........................................................................................................ 5-2
Condenser Fan Motor ........................................................................................................ 5-2
Compressor & Inverter ....................................................................................................... 5-3
Motorized Air Door ............................................................................................................. 5-4
Defrost Heater & Bimetal ................................................................................................... 5-4
Main Control Board ............................................................................................................ 5-5
Crush/Cube Solenoid ......................................................................................................... 5-6
Ice Maker Auger Motor ...................................................................................................... 5-6
Water Valve Solenoid ........................................................................................................ 5-7
Door Switch ....................................................................................................................... 5-7
- iii -
Page
DIAGNOSIS & TROUBLESHOOTING ................................................................................... 6-1
Diagnosis ........................................................................................................................... 6-1
Pre-Diagnostics Checks ................................................................................................. 6-1
Diagnostics Mode ........................................................................................................... 6-1
Water Filter Input (WFI) Test .......................................................................................... 6-2
Troubleshooting Chart ....................................................................................................... 6-3
WIRING DIAGRAMS & STRIP CIRCUITS ............................................................................. 7-1
Wiring Diagram .................................................................................................................. 7-1
Strip Circuits ...................................................................................................................... 7-2
- iv -
GENERAL
SAFETY FIRST
Your safety and the safety of others is very important.
We have provided many important safety messages in this Job Aid and on the appliance. Always
read and obey all safety messages.
This is the safety alert symbol.
This symbol alerts you to hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol and either the word
“DANGER” or “WARNING.” These words mean:
You can be killed or seriously injured if you don’t
immediately follow instructions.
You can be killed or seriously injured if you don’t
follow instructions.
All safety messages will tell you what the potential hazard is, tell you how to reduce the chance
of injury, and tell you what can happen if the instructions are not followed.
ELECTRICAL POWER SUPPLY &
GROUNDING REQUIREMENTS
Electrical Shock Hazard
Plug into a grounded 3-prong outlet.
Do not remove ground prong.
Do not use an adapter.
Do not use an extension cord.
Failure to follow these instructions can
result in death, fire, or electrical shock.
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or
electrical shock.
1-1
ELECTROSTATIC DISCHARGE
(ESD) SENSITIVE ELECTRONICS
ESD problems are present everywhere. ESD
may damage or weaken the electronic control
assembly. The new control assembly may appear to work well after repair is finished, but
failure may occur at a later date due to ESD
stress.
• Use an antistatic wrist strap. Connect the
wrist strap to a green ground connection
point or unpainted metal in the appliance; or
touch your finger repeatedly to a green ground
connection point or unpainted metal in the
appliance.
• Before removing the part from its package,
touch the antistatic bag to a green ground
connection point or unpainted metal in the
appliance.
• Avoid touching electronic parts or terminal
contacts. Handle the electronic control assembly by the edges only.
• When repackaging the failed electronic control assembly in an antistatic bag, observe
the above instructions.
Electrical Shock Hazard
Connect green ground wire to ground
screw.
Failure to do so can result in death or
electrical shock.
1-2
MODEL & SERIAL NUMBER DESIGNATIONS
MODEL NUMBER
MODEL NUMBER
G C 5 T H G X
PRODUCT GROUP
E = Refrigeration
G = Whirlpool Gold Refrigeration
PRODUCT IDENTIFICATION
C = Counter Depth (24″ Deep)
CUBIC FOOT CAPACITY
5 = 5 or 15 or 25
MODEL SERIES
MODEL FEATURE
MODEL FEATURE CODE
DOOR SWING
L = Left Fixed
R = Right Fixed
X = Right Reversible or Standard SXS
Y = Left Reversible
YEAR OF INTRODUCTION
K = 2001
COLOR CODE
Q = White on White
ENERGY/POWER DESIGNATOR (NUMERIC)
0 = Original, 1 = 1st Change, 2 = 2nd Change, Etc.
ENGINEERING CHANGE (NUMERIC)
0 = Original, 1 = 1st Change, 2 = 2nd Change, Etc.
SERIAL NUMBER
SERIAL NUMBER
S
L
30
10001
MANUFACTURING SITE
S = Fort Smith, AR
YEAR OF PRODUCTION
L = 2001
WEEK OF PRODUCTION
30th WEEK
PRODUCT SEQUENCE NUMBER
1-3
K
Q
0
0
MODEL & SERIAL NUMBER LABEL
AND TECH SHEET LOCATIONS
The Model/Serial Number Label and Tech Sheet locations are shown below.
Model & Serial Number Location
(Refrigerator Compartment)
Screw
Base Grille
Screw
Tech Sheet
Location
(Behind Base
Grille)
1-4
SPECIFICATIONS
Model Number
Model Description
Size-Configuration
Cabinet Height (Floor To Top Of Cabinet) (in)
Overall Height (Floor To Top Of Hinge Covers) (in)
Cabinet Width (in)
Overall Depth (Including Hardware & Handles) (in)
Depth - Less Doors/Base Grille (Minimum Opening) (in)
Crated Weight (lbs)
Cabinet Color
Cabinet Hinge Cover Color
Cabinet Center Rail Color
Cabinet Deck Rail Color
Cabinet Base Grille/Color
Cabinet Rollers
Refrigerant
Control Type
Freezer Ice Making/Storage
Ice Maker
Ice Trays (quantity)
Standard Warranty (Months)
Full Liner And Sealed System Warranty (Months)
GC5SHGXKB
Whirlpool Gold Counter Depth Dispenser
Freestanding Filtered Black
25' Counter Depth
71 1/2
71 7/8
35 1/2
29 3/8
24
360
Black
GC5SHGXKQ
Whirlpool Gold Counter Depth
Freestanding Dispenser Filtered White
25' Counter Depth
71 1/2
71 7/8
35 1/2
29 3/8
24
360
White
GC5SHGXKS
Whirlpool Gold Counter Depth Dispenser
Filtered Wrap Around Stainless Steel
25' Counter Depth
71 1/2
71 7/8
35 1/2
29 3/8
24
360
Black
Black
Black
Black
Black
Front/Rear Adjust
R134a
Electronic ITC
Yes
White
White
White
White
Front/Rear Adjust
R134a
Electronic ITC
Yes
Black Cabinet/Stainless Steel Door
Black
Black
Black
Front/Rear Adjust
R134a
Electronic ITC
Yes
Factory Installed
No
12
60
Factory Installed
No
12
60
Factory Installed
No
12
60
1-5
Model Number
Model Description
Size-Configuration
Cabinet Height (Floor To Top Of Cabinet) (in)
Overall Height (Floor To Top Of Hinge Covers) (in)
Cabinet Width (in)
Overall Depth (Including Hardware & Handles) (in)
Depth - Less Doors/Base Grille (Minimum Opening) (in)
Crated Weight (lbs)
Cabinet Color
Cabinet Hinge Cover Color
Cabinet Center Rail Color
Cabinet Deck Rail Color
Cabinet Base Grille/Color
Cabinet Rollers
Refrigerant
Control Type
Freezer Ice Making/Storage
Ice Maker
Ice Trays (quantity)
Standard Warranty (Months)
Full Liner And Sealed System Warranty (Months)
Model Number
Model Description
Size-Configuration
Cabinet Height (Floor To Top Of Cabinet) (in)
Overall Height (Floor To Top Of Hinge Covers) (in)
Cabinet Width (in)
Overall Depth (Including Hardware & Handles) (in)
Depth - Less Doors/Base Grille (Minimum Opening) (in)
Crated Weight (lbs)
Cabinet Color
Cabinet Hinge Cover Color
Cabinet Center Rail Color
Cabinet Deck Rail Color
Cabinet Base Grille/Color
Cabinet Rollers
Refrigerant
Control Type
Freezer Ice Making/Storage
Ice Maker
Ice Trays (quantity)
Standard Warranty (Months)
Full Liner And Sealed System Warranty (Months)
GC5SHGXKT
GC5THGXKB
Whirlpool Gold Counter Depth Trim
Whirlpool Gold Counter Depth Dispenser
Refrigerator Black Filtered Dispenser
Filtered Biscuit Freestanding
25' Counter Depth
25' Counter Depth
71 1/2
71 1/2
71 7/8
71 7/8
35 1/2
35 1/2
29 3/8
29 1/4
24
24
360
360
Biscuit
Black
Biscuit
Black
White
Black
White
Black
Biscuit
Black
Front/Rear Adjust
R134a
Electronic ITC
Yes
Front/Rear Adjust
R134a
Electronic ITC
Yes
Factory Installed
No
12
60
Factory Installed
No
12
60
GC5THGXKQ
Whirlpool Gold Counter Depth Trim
Dispenser Filtered White
25' Counter Depth
71 1/2
71 7/8
35 1/2
29 1/4
24
360
White
White
White
White
White
GC5THGXKT
Whirlpool Gold Counter Depth Trim
Refrigerator Dispenser Filtered Biscuit
25' Counter Depth
71 1/2
71 7/8
35 1/2
29 1/4
24
360
Biscuit
Biscuit
White
White
Biscuit
Front/Rear Adjust
R134a
Electronic ITC
Yes
Front/Rear Adjust
R134a
Electronic ITC
Yes
Factory Installed
No
12
60
Factory Installed
No
12
60
1-6
REFRIGERATOR WARRANTY
ONE-YEAR FULL WARRANTY ON REFRIGERATOR
For one year from the date of purchase, when this refrigerator (excluding the water filter) is
operated and maintained according to instructions attached to or furnished with the product,
Whirlpool Corporation will pay for FSP ® replacement parts and repair labor costs to correct defects
in materials or workmanship. Service must be provided by a Whirlpool designated service
company.
On models with a water filter: 30 day limited warranty on water filter. For 30 days from the date of
purchase, when this filter is operated and maintained according to instructions attached to or
furnished with the product, Whirlpool Corporation will pay for replacement parts to correct defects
in materials and workmanship.
FIVE-YEAR LIMITED WARRANTY
ON SEALED REFRIGERATION SYSTEM
For five years from the date of purchase, when this refrigerator is operated and maintained
according to instructions attached to or furnished with the product, Whirlpool Corporation will pay
for FSP® replacement parts and repair labor costs to correct defects in materials or workmanship
in the sealed refrigeration system. These parts are: compressor, evaporator, condenser, dryer,
and connecting tubing. Service must be provided by a Whirlpool designated service company.
Whirlpool Corporation will not pay for:
1. Service calls to correct the installation of your refrigerator, to instruct you how to use your
refrigerator, to replace house fuses or correct house wiring or plumbing, to replace light bulbs,
or replacement water filters other than as noted above.
2. Repairs when your refrigerator is used in other than normal, single-family household use.
3. Pickup and delivery. Your refrigerator is designed to be repaired in the home.
4. Damage resulting from accident, alteration, misuse, abuse, fire, flood, improper installation,
acts of God, or use of products not approved by Whirlpool Corporation.
5. Any food loss due to product failure.
6. Repairs to parts or systems resulting from unauthorized modifications made to the appliance.
7. Replacement parts or repair labor costs for units operated outside the United States or Canada.
8. In Canada, travel or transportation expenses for customers who reside in remote areas.
WHIRLPOOL CORPORATION AND INGLIS LIMITED SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES
Some states or provinces do not allow the exclusion or limitation of incidental or consequential damages, so this
exclusion or limitation may not apply to you. This warranty gives you specific legal rights, and you may also have other
rights which vary from state to state or province to province.
Outside the 50 United States and Canada, this warranty does not apply. Contact your authorized Whirlpool
dealer to determine if another warranty applies.
If you need service, first see the “Troubleshooting” section of the Use and Care Guide. After checking “Troubleshooting,” additional help can be found by checking the “Assistance or Service” section, or by calling the Whirlpool
Customer Interaction Center, 1-800-253-1301 (toll-free), from anywhere in the U.S.A. In Canada, contact your Inglis
Limited Appliance designated service company, or call 1-800-807-6777.
1-7
— NOTES —
1-8
INSTALLATION INFORMATION
LEVELING THE REFRIGERATOR
1.
IMPORTANT: All four leveling legs must contact the floor to support and stabilize the full
weight of the refrigerator.
Base Grille Removal
1. Open the refrigerator doors.
NOTE: Do not remove the Tech Sheets fastened behind the grille.
2. Remove the screws from the base grille
and remove the grille.
Adjusting The Rollers
2.
The roller adjusting bolts are located behind
the base grille. The refrigerator has four adjustable rollers: two in front, and two in the rear.
There are two sets of roller adjusting bolts
found at the base of the refrigerator on each
side. The rear leveling bolt (1) is yellow, and
the front leveling bolt (2) is silver.
Use a 1/2″ (12.70 mm) socket wrench to
adjust the leveling bolts. Turn the leveling
bolt to the right to raise that side of the
refrigerator, or turn the leveling bolt to the
left to lower that side. It may take several
turns of the leveling bolts to adjust the tilt
of the refrigerator.
Adjust the front leveling bolt so that the top
of the refrigerator is parallel with the cabinet above the refrigerator.
For standard cabinets, leave approximately
1/8″ (3.18 mm) gap between the top hinges
and the cabinet.
For full-overlay cabinets, leave a 1/4″ (6.35
mm) gap for leveling.
If you do not have a cabinet above the
refrigerator, adjust the refrigerator to make
it level.
Cabinet
Front Of
Refrigerator
1
2
3.
NOTE: Be careful not to unscrew the leveling
bolts too much when lowering the refrigerator.
The bolt head will start to come away from the
refrigerator when it is in the lowest position. If
the bolt comes out of the rear roller bracket, the
compartment access cover on the back of the
refrigerator will have to be removed to reinstall
the bolt.
4.
2-1
Adjust the rear leveling bolt and level the
refrigerator with the side cabinets, or with
the cabinet end panels.
If needed, use the four leveling bolts to
raise the refrigerator to close the gap
between the refrigerator top hinge, and
the cabinet opening. Check to make sure
that all four rollers still touch the floor, and
that the cabinet doors above the refrigerator open all the way.
— NOTES —
2-2
THEORY OF OPERATION
Warmer
Warmer
8
Water
Filter
46
3.4
40.4
1.7
38.7
0
37
–1.7
35.3
–3.4
33.6
–5.1
31.9
Cooler
Cooler
Freezer
Refrigerator
Power
On/Off
THE ELECTRONIC CONTROL PANEL
OVERVIEW
NOTE: The illustration above shows the actual
temperature that is associated with each corresponding LED.
Freezer temperatures can be set from 8°F to
–5°F (–13°C to –21°C). Refrigerator temperatures can be set from 46°F to 32°F, (8°C to
0°C).
The Adaptive Defrost Control (ADC) portion of
the electronic control utilizes “pulsed defrost”
technology to perform the defrost function (see
page 3-4).
The electronic control monitors the water valve
for total elapsed time and gallons of water
used. The Water Filter Indicator (WFI) LED
changes color to indicate that the filter needs to
be replaced.
Pressing the Temperature Up or Down adjustment keys will change the refrigerator and
freezer settings. One of seven (7) LEDs light to
display the refrigerator and the freezer settings.
The Whirlpool Counter Depth Refrigerator
Constant Flow Temperature Management System uses two thermistors to monitor temperature changes inside the refrigerator and freezer
compartments. The electronic control manages the operation of the variable capacity
compressor (VCC), a variable speed evaporator fan motor, and a variable position air door.
The air door allows independent temperature
control of the refrigerator and freezer compartments.
The electronic control seeks the most efficient
means possible to maintain temperatures as it
controls the operation and speed of the compressor and the evaporator fan motor. Higher
fan speed is used before increasing the compressor speed to minimize power consumption. A nearly constant run time is sought at the
lowest possible fan and compressor speed.
3-1
TEMPERATURE CONTROL
Freezer Temperature Control —
Temperature Decreasing
The electronic control checks the resistance of
the thermistors, and compares it to both the
customer temperature settings and the last
thermistor reading taken. This information is
used to determine when to begin a cooling
operation, and if a change is necessary in the
damper setting, or the evaporator fan or compressor speed.
When a warm refrigerator is first put into a
cooling mode, the air door partially opens, and
the compressor and evaporator fan motors
start to run at maximum rpm. The air door will
gradually move to its fully open position.
As the actual temperature in the refrigerator
nears the selected temperature setting, the
electronic control compares the temperatures
in both compartments. The compartment that
has the greatest need for cooling, will control
the speed of the evaporator fan motor.
When the freezer temperature begins to decrease, the process will reverse. The compressor speed decreases, followed by the evaporator fan speed.
Refrigerator Temperature Control —
Temperature Increasing
When the refrigerator calls for cooling while
the freezer is satisfied, the air door begins to
open, and the evaporator fan starts to run at
minimum speed. If the temperature continues
to rise, the air door will continue to open. If the
temperature continues to rise after the air door
is fully open, the evaporator fan speed will
gradually increase to a maximum of 3000 rpm.
If the temperature continues to rise, the compressor starts to run, or if it has already been
running, begins to increase in speed.
Refrigerator Temperature Control —
Temperature Decreasing
Freezer Temperature Control —
Temperature Increasing
As the refrigerator temperature approaches the
selected setting, the control compares the temperatures in both compartments to determine
which compartment will control the fan speed.
If the freezer is further from the selected temperature setting, it controls the fan speed, and
the air door begins to close, thus reducing the
airflow to the refrigerator.
When the freezer calls for cooling, the compressor begins to run at minimum rpm, (see the
chart on page 3-3), and the evaporator fan
begins to run at 2000 rpm. The compressor
and evaporator speeds are continuously updated. Speed changes are made based on:
• The difference between the actual temperature and the selected temperature settings.
• The rate of temperature change.
If the temperature increases 4°F above the
selected temperature setting, the evaporator
fan speed begins to gradually increase. The
evaporator fan motor reaches the maximum
speed of 3000 rpm at 5°F above the selected
temperature setting, and the compressor speed
begins to gradually increase. A maximum compressor speed of 4500 rpm will be reached at
9°F above the selected temperature setting.
If the freezer is satisfied, the air door remains
open, and the fan speed begins to decrease.
When the selected temperature setting is
reached, the air door closes.
3-2
COMPRESSOR
COMPRESSOR PROTECTION
The main control board supplies a 5 vdc, peakto-peak square wave, at 54 to 150 Hz, to the
inverter board. A standard VOM will read approximately 2.5 vdc. The inverter board supplies the variable capacity compressor with
three-phase 230 vac. Varying the frequency
to the inverter board, and not the voltage,
changes the speed of the compressor. The
compressor can run at speeds of 1620 to 4500
rpm.
To protect the compressor and maintain efficiency, minimum compressor off time is programmed into the control. When the compressor turns off, a minimum of 7 minutes must
elapse before allowing a restart.
The inverter board utilizes a current limiting
device and thermal protection that eliminates
the need for a compressor mounted thermal
protector.
EVAPORATOR FAN MOTOR
NOTE: It is not necessary, nor is it recommended, to test the output of the inverter board.
The evaporator fan motor is a 12 vdc, variable
speed motor. The motor has four wires:
• A blue wire provides feedback to monitor the
speed of the motor.
• A red wire provides a constant 12 vdc.
While the compressor is running, its speed is
continuously updated. Speed is determined
after analyzing two factors:
• The difference between the actual temperature and the selected temperature settings.
• The rate of temperature change.
Minimum compressor speed is based on the
freezer’s selected temperature setting, as
shown in the following chart.
Freezer Temperature
Setting
Compressor
Minimum Speed
#1 - #5
#6
#7
1620 rpm
1800 rpm
2200 rpm
• A yellow wire provides a variable voltage of
between 5 vdc and 17 vdc to control the
motor speed from 2000 to 3000 rpm.
• A white wire provides a common return.
EVAPORATOR FAN &
AIR DOOR DELAY
After defrost, an evaporator fan delay prevents
unnecessary movement of warm, moist air
through the refrigerator, by chilling the evaporator prior to starting the fan. Immediately after defrost drip time, the compressor starts at
4500 rpm, but the evaporator fan is delayed
for 8 minutes. The air door remains closed for
8 minutes following defrost.
The compressor generally cycles on and off
according to the cut-in and cut-out temperatures of the freezer, however, the refrigerator
can turn on the compressor if the evaporator
fan is at maximum speed and the refrigerator
temperatures are not dropping.
AIR DOOR
The air door is driven by a reversible DC
stepper motor. The motor operates on a 12
vdc, peak-to-peak square wave. Voltage is
delivered to the air door in a series of short
pulses. It is not possible to obtain a reliable
voltage reading with a VOM.
Separate windings are used to move the air
door open or closed. The door can be in any
one of 1800 positions from 0 to 90 degrees.
The air door is used to fine-tune the airflow to
the refrigerator.
3-3
POWER INTERRUPTION
The refrigerator temperature determines the
opening of the air door. When the refrigerator
requires cooling, if the evaporator fan motor is
already running for the freezer, the air door
partially opens, and then adjusts, if necessary.
While the refrigerator is cooling, the door will
be adjusting continuously to maintain or recover refrigerator temperature.
After a power interruption, the following events
will occur:
• The unit returns to the same operating mode
and settings in use prior to the power interruption. If the unit was off, it remains off.
• Initially, the compressor, evaporator fan, and
condenser fan motors will be off.
• The air door will close, and then adjust to the
proper opening. The evaporator fan starts
when the air door opens.
• The adaptive defrost control resets the compressor run time counter to 0, and if the
freezer is above 20°F, the time to defrost is
set to 8 hours.
• If the freezer temperature is below 12°F, the
compressor starts after a delay of 7 minutes.
If the freezer temperature is above 12°F, the
compressor starts immediately.
ADAPTIVE DEFROST
The adaptive defrost control allows the unit to
enter a defrost mode only when it is needed.
When powered up for the first time, the control
initiates a defrost cycle after 8 hours of compressor run time. By monitoring the duration of
defrost heating time and compressor run time,
the control will continuously adapt the time
between defrosts to optimize efficiency. Time
between defrost periods will vary between 8
and 100+ hours.
Defrost will occur immediately when the compressor has run at 4000 rpm or greater for 1
hour, and 8 hours have elapsed since the last
defrost.
FAILURE DEFAULTS
In the event of a thermistor, or keypad failure,
the control uses one of the following default
modes, which will continue until the failure is
corrected.
PULSED DEFROST
For the first 7 minutes of defrost, the heater is
on continuously. It will then cycle off for 1
minute, and back on for 2 minutes. The heater
will continue to cycle at this ratio until the
bimetal opens, or until 33 minutes has elapsed.
At this point, heat is discontinued, and a
4-minute “drip time” begins. This allows the
water to drain before the unit returns to a
cooling mode. Maximum defrost time, (pulsed
heat on/off time + drip time) is 37 minutes.
When entering a defrost cycle, if the bimetal is
open, the time to defrost is reset to 8 hours, and
the control will time through the entire 37 minute
defrost period. During diagnostics this will allow a technician time to look for heater operation, and if necessary, bypass the bimetal.
Refrigerator Thermistor
If the control senses an open or a shorted
thermistor, the air door and the evaporator fan
motor will begin to operate on a timed on and
off cycle, based on current selected temperature settings. The evaporator fan motor will run
when the air door is open.
At mid-settings of 37°F / 0°F, the air door will
open for 16 minutes, and close for 30 minutes.
Setting the freezer colder, or the refrigerator
warmer, will reduce the door-open time. Setting the freezer warmer, or the refrigerator
colder, will increase the door-open time.
3-4
Freezer Thermistor
AIR CIRCULATION
If the control senses an open or a shorted
thermistor, the compressor and the evaporator
fan motor will begin to operate on a timed on
and off cycle. The cycle time is based on
current selected temperature settings.
At mid-settings of 37°F / 0°F, the compressor
and the evaporator fan motors will run for 35
minutes, and be off for 25 minutes. Setting the
freezer colder will increase the run time. Setting the freezer warmer will decrease the run
time.
The compressor will run at minimum speed.
The evaporator fan will also run at minimum
speed, unless the refrigerator compartment
requests a higher speed.
In order to ensure the proper refrigerator and
freezer compartment temperatures, air must
be able to flow between the two sections.
Air enters the bottom of the freezer compartment and moves up through the evaporator.
Some of the cooled air from the evaporator is
directed back into the freezer, and the rest
goes into the refrigerator through the motorized air door. The refrigerator air then returns to
the freezer through the bottom air return (see
the illustration below).
Keypad
If the control detects that the keypad is not
working, it reverts to the default temperature
settings of 37°F in the refrigerator, and 0°F in
the freezer.
Evaporator Fan Motor
If the evaporator fan motor malfunctions, the
compressor will run at 4500 rpm for an indefinite period, except during the defrost periods.
ELECTRONIC CONTROL
THERMAL SHUTOFF
The electronic control utilizes an on-board thermistor to shut the compressor off if the temperature rises above 160°F (71°C). When the
temperature drops to 130°F (55°C), the compressor returns to normal operation. This cycle
continues indefinitely until the cause of the high
temperature has been corrected.
It is important not to block any of the vents with
food items. If the vents are blocked, airflow will
be restricted, and the temperature management system will not function properly.
IMPORTANT: Because air circulates between
both sections, any odors formed in one section
will transfer to the other. Keep both sections
clean, and wrap or cover foods tightly to prevent odors from occurring.
3-5
— NOTES —
3-6
COMPONENT ACCESS
This section instructs you on how to service each component inside the refrigerator/freezer. The
components and their locations are shown below.
COMPONENT LOCATIONS
Freezer Door Switch
Touch Control Assembly
& Motorized Air Door
Refrigerator Door
Switch
Ice Maker
(Behind Cover)
Auger Motor
(Behind Ice Bin)
Freezer Thermistor
Refrigerator
Thermistor
Ice & Water Dispenser
(On Front Of Freezer
Door)
Water Reservoir
Evaporator Fan Motor
Bimetal
Defrost Heater
Evaporator
Main Control
Board Assembly
Inverter
Assembly
Compressor
Condenser
Fan Motor
4-1
Water Valve
REMOVING THE TOUCH/DISPLAY BOARD,
THE INSERT AND OVERLAY,
& THE MOTORIZED AIR DOOR
3.
Remove the light shield. To do this, place
your finger into the half-moon slot at the
bottom of the shield and pull out, then pull
down to disengage the corners from the
control box.
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or
electrical shock.
Light
Shield
NOTE: Sharp edges may be present.
1. Unplug the refrigerator or disconnect the
power.
2. Open the refrigerator door and remove the
items from the top shelf. If necessary,
remove the top shelf so you can easily
access the touch control assembly. The
touch control assembly location is shown
below.
4.
5.
Touch Control Assembly
Remove the bulb from the socket.
Remove the hex-head screw from the
touch control assembly, then pull the assembly forward to unhook it from the refrigerator liner, and down to remove it.
40W Bulb
Screw
Touch Control Assembly
4-2
6.
8.
Disconnect the two wires from the light
socket and the 3-wire connector from the
touch/display board, and remove the touch
control assembly.
To remove the insert and overlay, press
the locking clips, and push the insert and
overlay out of the touch control housing
opening.
Unclip & Push Out
3-Wire
Connector
Light
Socket
Wires
Insert & Overlay
9.
To remove the motorized air door:
a) Pull the cover and motorized air door
away from the refrigerator liner.
Motorized Air Door Cover
7.
To remove the touch/display board,
unclip it from the touch control housing
and remove the board.
Touch/Display Board
Clip
(1 of 5)
b) Disconnect the wire connector from the
motorized air door.
Touch Control
Housing
Motorized Air Door
Wire Connector
4-3
REMOVING A THERMISTOR
3.
Remove the hex-head screw from the
thermistor cover. Pull the cover forward at
the screw end, and unhook the tab from
the slot at the other end of the thermistor
cover.
Screw
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or
electrical shock.
Refrigerator / Freezer
Thermistor Cover
NOTE: Sharp edges may be present.
1. Unplug the refrigerator or disconnect the
power.
NOTE: The refrigerator and freezer thermistors
are identical and are removed in the same
manner.
2. Depending on the thermistor, open the
freezer or refrigerator door, and remove
any items from the shelf that are in front of
the thermistor. It may be necessary to
remove the shelf as well. The thermistor
locations are shown below.
Freezer
Thermistor
4.
Disconnect the 2-wire connector and remove the thermistor.
Connector
Refrigerator / Freezer
Thermistor
Refrigerator
Thermistor
4-4
REMOVING A DOOR SWITCH
3.
Use a small-bladed screwdriver and pry
the door switch out of the freezer/refrigerator liner opening.
Straight Side Faces Front
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or
electrical shock.
Refrigerator Door Switch
NOTE: Sharp edges may be present.
1. Unplug the refrigerator or disconnect the
power.
NOTE: The refrigerator and freezer door
switches are identical and are removed in the
same manner.
2. Depending on the door switch, open the
freezer or refrigerator door. The door switch
locations are shown below.
Freezer Door Switch
4.
Disconnect the wires from the door switch
terminals.
Door
Switch
Wires
Refrigerator Door Switch
REASSEMBLY NOTE: Be sure to position either door switch with the straight side facing
the front (see the top photo) before you press
it into the opening.
4-5
REMOVING A LIGHT SOCKET
3.
4.
5.
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or
electrical shock.
Press In On Locking
Arm At Narrow End
NOTE: Sharp edges may be present.
1. Unplug the refrigerator or disconnect the
power.
NOTE: The refrigerator and freezer light sockets are identical and are removed in the same
manner.
2. Depending on the light, open the freezer
or refrigerator door, and remove any items
from the shelf that are in front of the light.
It may be necessary to remove the shelf as
well. The light locations are shown below.
Freezer Light
Remove the light shield.
Remove the bulb from the socket.
Grasp the light socket by the rounded
portion and pull out on the narrow end,
while pressing the locking arm (see the
photo below) with a screwdriver blade.
Pull out on the socket until it disengages
from the opening.
Grasp Rounded Portion
Here & Pull Out
6.
Disconnect the two wires from the light
socket terminals.
Locking Arm
Wire
Refrigerator Light
Wire
Freezer Light
Refrigerator Light
4-6
REMOVING THE WATER RESERVOIR
2.
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or
electrical shock.
Open the refrigerator and freezer doors
and remove the two screws from the base
grille and remove the grille from the front of
the unit.
Screw
NOTE: Sharp edges may be present.
1. Unplug the refrigerator or disconnect the
power.
NOTE: The water reservoir location is shown
below.
Base Grille
Screw
3.
Place a container near the base grille to
catch the water in the next step.
4.
Disconnect the water dispenser fill tube
from the union, slide the nut off the end of
the tube, and allow the water to drain into
the container.
Water Dispenser Tubing & Union Nut
Water Reservoir On Rear Liner
Continued on the next page.
NOTE: If the water reservoir tubing located
inside the refrigerator compartment becomes
damaged, you can cut and splice a new reservoir in its place using two 5/16″ unions
(#4388201). If the tubing located under the
refrigerator is defective, it will be necessary to
remove the unit from its mounting location to
repair it. If that is the case, use the following
procedure.
4-7
5.
6.
Pull the unit out of its mounting location so
you can access the unit compartment
cover.
At the rear of the unit, remove the hexhead screws from the unit compartment
cover and remove the cover.
8.
Pull the ends of the water reservoir tubing
through the condenser fan motor bracket.
9. Remove the crisper and bottom shelves
from the refrigerator compartment.
10. Remove the hex-head screw from the
water reservoir tubing strap.
11. Pull the ends of the water reservoir tubing
through the grommet.
Tubing Strap
Unit Compartment Cover
7.
Disconnect the nut on the reservoir inlet
tubing coming from the water valve, and
slide the nut off the end of the tubing.
Condenser Fan Motor Bracket
Water Valve
Pull Tubing Up Through Grommet
REASSEMBLY NOTE: Make sure that you
route the water reservoir tubing through the
condenser fan motor bracket to the water valve
and the water dispenser union (see the bottom
left photo). Do not allow the tubing to contact
the hot discharge lines coming from the compressor.
Pull Tubing
Through Here
Water Reservoir Inlet Tubing Nut
4-8
REMOVING THE ICE MAKER AND
THE AUGER MOTOR & CRUSH/CUBE SOLENOID
3.
To remove the ice maker:
a) Remove the bottom screw from the ice
maker bracket.
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or
electrical shock.
NOTE: Sharp edges may be present.
1. Unplug the refrigerator or disconnect the
power.
2. Open the freezer door and remove the ice
maker shelf and the ice bin.
Bottom Bracket Screw
b) Loosen the two top ice maker bracket
screws.
c) Lift the brackets at the top of the ice
maker off the screws, disconnect the
electrical harness connector, and remove the ice maker.
Water Fill Tube
Inside Fill Cup
Ice Maker Shelf
Harness Connector
Behind Ice Maker
Top Bracket
Screws
Ice Bin
Ice Maker
Auger Assembly
NOTE: When you reinstall the ice maker, make
sure that the end of the water fill tube is positioned inside the fill cup (see the photo above).
Continued on the next page.
4-9
4.
To remove the auger motor or crush/
cube solenoid:
a) Remove the light shield and the bulb
from the socket.
b) Remove the four hex-head screws from
the auger assembly and pull the assembly forward.
d) To remove the auger, unscrew the drive
coupler (left-hand threads) and remove
it from the motor shaft.
e) Remove the three auger motor hexhead screws from the housing.
Drive Coupler
Auger Assembly
Solenoid Screws
Screws
Remove
Screws
Auger Motor
Screw (1 of 3)
Light Shield & Bulb
c) Remove the green ground wire screw,
disconnect the electrical harness connector, and remove the auger assembly.
f) Disconnect the wires from the auger
motor terminals.
g) To remove the crush/cube solenoid,
remove the two hex-head mounting
screws from the housing (see above).
h) Disconnect the wires from the solenoid
terminals.
Harness Connector
Auger Motor Wires
Ground Wire
Solenoid Wires
Electrical Shock Hazard
Connect green ground wire to ground
screw.
Failure to do so can result in death or
electrical shock.
4-10
REMOVING THE EVAPORATOR FAN MOTOR,
THE BIMETAL, THE DEFROST HEATER,
& THE EVAPORATOR
3.
4.
5.
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or
electrical shock.
Light Shield & Bulb
Remove Rear
Shelf Studs
NOTE: Sharp edges may be present.
1. Unplug the refrigerator or disconnect the
power.
2. Open the freezer door and remove the ice
bin, shelves, and freezer baskets.
Evaporator
Cover Screws
(2 of 8)
Ice Bin
Shelves &
Freezer Baskets
Remove the light shield and bulb from the
freezer light.
Remove the phillips screw from each of
the two top rear shelf support studs and
remove the studs.
Remove the eight hex-head screws from
the evaporator cover.
Continued on the next page.
4-11
6.
Lift and unhook the two evaporator cover
tabs, then lower the cover until the top
edge clears the air duct, and slide the
cover up and out of the freezer.
7.
To remove the evaporator fan motor:
a) Pull the fan blade off the motor shaft.
b) Unclip the motor.
c) Disconnect the wire connector from the
terminals.
Pull Fan Blade Off Motor Shaft
Evaporator Fan Motor
Unhook Evaporator
Cover Tabs
Unclip Motor
Wire Connector
d) Remove the isolator from the motor.
Evaporator Fan Motor
Isolator
Bimetal
Defrost
Heater
Evaporator
4-12
8.
To remove the bimetal:
a) Unclip the bimetal from the evaporator
inlet tubing.
b) Follow the instructions that were supplied with the replacement bimetal to
connect the wires.
b) Disconnect the two defrost heater wires
and the main terminal connector.
c) Unclip the bimetal from the evaporator
inlet tubing.
d) Remove the two top hex-head screws
and loosen the bottom screw on the
evaporator fan motor shroud, and remove the shroud and the two foam
inserts.
Evaporator Fan Motor
Shroud Screws
(2 of 3)
Terminal Connector
Unclip Bimetal
9.
To remove the defrost heater:
a) Remove the four hex-head screws from
the right evaporator cover mounting
bracket and remove the bracket.
Bimetal
Defrost Heater Wires
e) Remove the foam block from the right
side of the evaporator.
Right Evaporator
Cover Bracket
Do Not
Overbend Tubing
Left Styrofoam Block
Right Foam Block
NOTE: Be very careful not to over-bend
the refrigerant tubing.
f) Lift the evaporator off the two bottom
hangers and remove the styrofoam air
block from the left side.
Continued on the next page.
4-13
g) Pull the bottom of the evaporator toward the front of the unit and remove
the two hangers from the defrost heater.
10. To remove the evaporator:
a) Remove the defrost heater from the
evaporator (see page 4-13).
b) Access the sealed system and discharge the refrigerant into an approved
recovery system.
c) Remove and replace the evaporator.
REASSEMBLY NOTES:
1. The evaporator fan motor shroud has a
foam insert on each side. Note the position
of these inserts in the photo and reinstall
them correctly, as shown.
Evaporator Fan Motor Shroud
Defrost Heater Hangers
Foam Inserts
h) Slide the defrost heater off the evaporator.
Defrost Heater
2.
Be sure to reinstall the left styrofoam block
and the right foam block at the locations
shown below.
Left Styrofoam Block
4-14
Right Foam Block
REMOVING THE CONDENSER FAN MOTOR
4.
Remove the speed nut from the condenser
fan blade and remove the blade.
Nut Side
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or
electrical shock.
NOTE: Sharp edges may be present.
1. Unplug the refrigerator or disconnect the
power.
2. Pull the refrigerator out of its mounting
location.
3. At the rear of the unit, remove the hexhead screws from the unit compartment
cover and remove the cover.
Speed Nut
5.
Remove the two hex-head screws from
the condenser fan motor and remove the
motor.
Condenser Fan Motor
Screws
6.
Wire
Connector
Disconnect the wire connector from the
condenser fan motor.
NOTE: When you reinstall the condenser fan
blade, make sure you position it with the “Nut
Side” (stamped on the blade) facing the speed
nut (see the top photo).
4-15
REMOVING THE COMPRESSOR
Compressor
Terminal Cover
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or
electrical shock.
6.
7.
NOTE: Sharp edges may be present.
1. Unplug the refrigerator or disconnect the
power.
2. Pull the refrigerator out of its mounting
location.
3.
Remove the power connector and green
ground wire from the compressor terminals.
Loosen the strain relief screw and remove
the wire.
Power Connector & Ground Wire
Terminal Cover
At the rear of the unit, remove the hexhead screws from the unit compartment
cover and remove the cover.
Strain
Relief
Compressor
4.
5.
Filter/Drier
Remove the inverter assembly (see page
4-17 for the procedure).
Remove the compressor terminal cover.
To remove the cover, insert a flat-bladed
screwdriver into the top slot, push down on
the screwdriver to release the catch, and
then rotate the cover away from the compressor at the top, and lift the cover off the
bottom catch (see the top right photo).
8.
Access the sealed system and discharge
the refrigerant into an approved recovery
system.
9. Cut the suction and discharge lines.
10. Cut the filter/drier from the system (do not
use a torch to remove the filter/drier).
11. Pull the four clips from the compressor
mounting studs and remove the compressor.
4-16
REMOVING THE INVERTER ASSEMBLY
5.
6.
Remove the compressor terminal cover
(see step 5 on page 4-16 for the procedure).
Disconnect the inverter output 3-wire connector and ground wire from the compressor.
Green Ground Wire
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or
electrical shock.
Compressor
NOTE: Sharp edges may be present.
1. Unplug the refrigerator or disconnect the
power.
2. Pull the refrigerator out of its mounting
location.
3. At the rear of the unit, remove the hexhead screws from the unit compartment
cover and remove the cover.
Inverter
Assembly
Inverter
Connector
7.
Disconnect the 3-wire and 2-wire connectors from the inverter.
3-Wire Connector
Inverter Assembly
4.
Inverter
Assembly
Remove the hex-head mounting screw
from the inverter assembly and lift the
assembly out of the unit.
2-Wire Connector
Inverter
Assembly
Mounting Screw
4-17
REMOVING THE MAIN CONTROL BOARD ASSEMBLY
5.
6.
Disconnect the 3-, 9-, and 12-pin connectors, as shown below.
Remove the hex-head screw from the
green ground wire.
3-, 9-, & 12 Pin Connectors
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or
electrical shock.
Screws
NOTE: Sharp edges may be present.
1. Unplug the refrigerator or disconnect the
power.
2. Pull the refrigerator out of its mounting
location.
3. At the rear of the unit, remove the hexhead screws from the unit compartment
cover and remove the cover.
Ground Wire
7.
8.
Remove the two hex-head mounting
screws from the main control board enclosure and remove it from the unit.
Disconnect the six connectors from the
main control board.
Four Connectors
Main Control
Board Assembly
4.
Main Control Board Assembly
Remove the inverter assembly (see page
4-17 for the procedure).
Two Connectors
4-18
9.
Remove the main control board from the
five standoffs. Press in on the locking tab
on each standoff to release the board.
Press In On Tab To Remove
Board From Standoffs
Electrical Shock Hazard
Connect green ground wire to ground screw.
Failure to do so can result in death or electrical shock.
NOTE: When you reinstall the main control
board assembly, be sure to install the green
ground wire at the location shown in the photo.
Ground Wire
4-19
Main Control Board Assembly
REMOVING THE WATER DISPENSER FILL TUBE
3.
Position the drip tray upside down under
the ice & water dispenser control panel,
and pry the bottom edge of the panel out
at the two small slots with a large-bladed
screwdriver.
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or
electrical shock.
Pry Out
NOTE: Sharp edges may be present.
1. Unplug the refrigerator or disconnect the
power.
2. Pull out the ice & water dispenser drip tray.
Slot
4.
Disconnect the control panel switch connector from the wiring harness and remove the panel.
Switch Connector
Remove Drip Tray
4-20
5.
6.
Disconnect the three wire connectors and
the green ground wire from the switch
subpanel.
Remove the two hex-head screws from
the switch subpanel and remove the panel.
3 Wire Connectors & Ground Wire
9.
Disconnect the water dispenser fill tube
from the union, slide the nut off the end of
the tube, and allow the water to drain into
the container.
10. If possible, pull the water dispenser fill
tube through the wire tie, or cut the tie.
Wire Tie
Screw
7.
Switch Subpanel
Screw
Open the refrigerator and freezer doors
and remove the two screws from the base
grille and remove the grille from the front of
the unit.
Water Dispenser Fill Tube Nut
11. At the dispenser, pull the water dispenser
fill tube out of the dispenser hole.
12. Remove the water dispenser fill tube
bracket from the end of the old fill tube and
install it on the end of the new tube. Leave
approximately 1″ of tubing for the spout.
Fill Tube Bracket
Screw
8.
Base Grille
Screw
Place a container near the base grille to
catch the water in the next step.
Spout = 1″
4-21
REMOVING THE WATER VALVE
5.
Remove the hex-head screws from the
water valve bracket.
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or
electrical shock.
NOTE: Sharp edges may be present.
1. Unplug the refrigerator or disconnect the
power.
2. Pull the refrigerator out of its mounting
location.
3. Turn off the water supply to the refrigerator.
4. At the rear of the unit, remove the hexhead screws from the unit compartment
cover and remove the cover.
Water Valve
Bracket Screws
6.
7.
8.
9.
Water Valve
Position a container under the water valve
to catch the water in the next step.
Disconnect the 1/2″ nut from the water
valve inlet tubing.
Remove the water outlet tubing nuts from
the water valve.
Remove the wire connectors from the two
solenoids.
Wire Connectors
Water Valve
Inlet Tubing
Water Outlet Tubing Nuts
4-22
REMOVING THE FREEZER DOOR
HANDLES & FREEZER DOOR
b) Similarly, slide down and remove the
bottom handle trim.
c) Remove the four hex-head screws and
remove the handle from the door.
2 Screws
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or
electrical shock.
NOTE: Sharp edges may be present.
1. Unplug the refrigerator or disconnect the
power.
NOTE: The refrigerator door and handles are
removed in the same manner as the freezer
door, except that the ice & water dispenser
lines are not present.
2. To remove a door handle:
a) Slide the top handle trim up to release
the shoulder screw from the trim bracket and remove the trim.
Freezer Handle
2 Screws
3.
Trim Bracket
To remove the freezer door:
a) Open the refrigerator and freezer doors
and remove the two screws from the
base grille and remove the grille from
the front of the unit.
Screw
Base Grille
Screw
Continued on the next page.
4-23
b) Place a container near the base grille to
catch the water in the next step.
c) Disconnect the water dispenser fill tube
from the union, slide the nut off the end
of the tube, and allow the water to drain
into the container.
d) Cut the wire tie around the bottom door
hinge.
f) Close the freezer door to hold it in
place.
g) Remove the three Torx screws from
the top hinge and remove the hinge.
Torx Screw
(1 of 3)
Top Hinge
Wire Tie
h) Open the freezer door and lift it off the
bottom hinge.
Water Dispenser Fill Tube Nut
e) Disconnect the dispenser power connector.
Dispenser
Power Connector
4-24
REMOVING A ROLLER
6.
Remove the T-40 Torx bolt from the bottom frame.
Cabinet
Bottom
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or
electrical shock.
NOTE: Sharp edges may be present.
1. Unplug the refrigerator or disconnect the
power.
2. Remove any food or beverage that can
spill or be damaged from the refrigerator
and freezer compartments.
3. Pull the refrigerator out of its mounting
location.
4. If possible, tip the unit to access the front
or back rollers. If tipping is not possible,
use a piece of wood, (2″ x 4″), and prop up
the cabinet side at the front or rear of the
unit (depending on the roller you are replacing). Only prop up the outside edge of
the cabinet and not the bottom frame. The
frame must be free to move in order to
access the roller pin.
5. Turn the adjustment rod to remove it from
the roller.
Roller Adjustment Rod
Bottom Frame
7.
T-40 Torx Bolt
Pull the bottom frame down to expose the
roller pin. Pull the pin out of the roller and
remove it.
Remove Roller
Pull Bottom
Frame Down
Remove Roller Pin
Roller Bracket
4-25
— NOTES —
4-26
COMPONENT TESTING
• Check all connections before replacing components, looking for broken or loose wires,
failed terminals, or wires not pressed into
connectors far enough.
• Resistance checks must be made with power
cord unplugged from outlet, and with wiring
harness or connectors disconnected.
Before testing any of the components, perform
the following checks:
• The most common cause for control failure is
corrosion on connectors. Therefore, disconnecting and reconnecting wires will be necessary throughout test procedures.
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or electrical shock.
6.
THERMISTOR
Refer to page 4-4 for the procedure for servicing a thermistor.
1. Run the diagnostics tests (see page 6-1)
and test the thermistors in steps 01 and
02.
NOTE: For accurate temperature/resistance
readings, continue with the remaining steps to
check the resistance of the thermistor(s).
2. Unplug the refrigerator or disconnect the
power.
3. Disconnect the thermistor wire connector
from the main harness.
4. Set the ohmmeter to the R x 1K scale.
5. Insert the test probes into the two connector pins of the thermistor connector.
Depending on the temperature, the meter
should indicate within the approximate
range, as shown in the chart below.
TEMPERATURE
(°° F)
RESISTANCE
OHMS (APPROX.)
TEMPERATURE
(°° F)
RESISTANCE
OHMS (APPROX.)
–5
0
5
10
15
20
25
30
32
35
40
25900-27500
22100-23500
18900-20000
16200-17200
13900-14800
12000-12800
10400-11000
8990-9550
8750
7800-8290
6800-7220
45
50
55
60
65
70
75
80
85
90
5930-6300
5190-5510
4550-4830
4000-4240
3520-3730
3100-3300
2740-2910
2430-2580
2160-2290
1920-2030
NOTE: If the resistance of the thermistor(s)
was normal, perform the following voltage test.
1. Set the voltmeter to read a maximum
voltage of 10 volts DC.
2. Connect power to the refrigerator and
allow it to enter the “cooling” mode.
3. With the thermistor disconnected and the
refrigerator in the cooling mode, touch the
voltmeter test probes to the thermistor
main harness connector pins. The meter
should indicate approximately 5 volts DC.
If the voltage was not present, check for a
thermistor output at the main control board
(see page 5-5).
5-1
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or electrical shock.
CONDENSER FAN MOTOR
EVAPORATOR FAN MOTOR
1 2 3 4
Refer to page 4-11 for the procedure for servicing the evaporator fan motor.
1. Run the diagnostics tests (see page 6-1)
and check for the proper operation of the
evaporator fan motor in step 03.
NOTE: During the evaporator fan motor operation, 5 to 17 volts DC will be present at the
yellow and white wires. A constant 12 volts at
the red and white wires will be present anytime
the fan motor is operating. The remaining steps
will allow you to check the resistance of the
evaporator fan motor.
2. Unplug the refrigerator or disconnect the
power.
3. Disconnect the wire connector going to
the evaporator fan motor.
4. Set the ohmmeter to the R x 10K scale.
5. Touch the ohmmeter test probes to pins 1
and 4 of the evaporator fan motor connector. The meter should indicate approximately 1400 to 1700 Ω.
1 2 3 4
Refer to page 4-15 for the procedure for servicing the condenser fan motor.
1. Run the diagnostics tests (see page 6-1)
and check for the proper operation of the
condenser fan motor in step 04.
NOTE: During the condenser fan motor operation, 120 volts AC will be present at pins 1 and
4.
5-2
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or electrical shock.
COMPRESSOR & INVERTER
Pins
check P7-3 and P7-8 on the main control board for 3 to 6 volts DC. If the voltage is not present, replace the main
control board.
• If the 3 to 6 volts DC is present at the
main control board, continue with step 5.
5. Unplug the refrigerator or disconnect the
power.
6. Disconnect the wire connector going to
the compressor.
7. Set the ohmmeter to the R x 1 scale.
8. Touch the meter leads to any two pins.
The meter should indicate approximately
9 to 10 Ω. Check between each set of pins
to test all three windings.
9. Set the ohmmeter to the highest scale.
10. Touch one meter lead to the cabinet ground
and the other lead to each of the three
compressor terminals. The meter should
indicate an open circuit (infinite).
Refer to page 4-16 & 4-17 for the procedure for
servicing the compressor and inverter.
1. Run the diagnostics tests (see page 6-1)
and check for the proper operation of the
compressor in step 05.
NOTE: If the compressor does not operate
perform the following steps.
2. Connect power to the refrigerator and
allow it to enter the “cooling” mode.
3. While the refrigerator is in the cooling
mode, the inverter and main control board
voltages should be as shown in the chart
below.
4. Set the voltmeter to read the voltages
shown in the chart.
• If the 3 to 6 volts DC is not present at
the inverter red/white and red wires,
COMPONENT
Inverter
Main Control Board
INPUT/ OUTPUT LOCATIONS
VOLTAGES
Red/White & Red Wires
Black & White Wires
P7-3 (Red) & P7-8 (Red/White)
3 To 6 Volts DC
120 Volts AC
3 To 6 Volts DC
5-3
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or electrical shock.
MOTORIZED AIR DOOR
DEFROST HEATER & BIMETAL
Refer to page 4-2 for the procedure for servicing the motorized air door.
1. Run the diagnostics tests (see page 6-1)
and check for the proper operation of the
air door in step 06.
NOTE: A 12 volts DC square wave is supplied
to the air door in a series of short pulses. It is not
possible to obtain a reliable voltage reading
with a VOM. The remaining steps will allow you
to check the resistance of the air door motor.
2. Unplug the refrigerator or disconnect the
power.
3. Disconnect the motorized air door wire
connector from the main harness.
4. Set the ohmmeter to the R x 10 scale.
5. Touch one of the test probes to the motorized air door connector with the yellow
wire and the other test probe to the white
wire. The meter should indicate approximately 400 to 450 Ω.
6. Touch one of the test probes to the motorized air door connector with the red wire
and the other test probe to the blue wire.
The meter should indicate approximately
400 to 450 Ω.
Refer to page 4-11 for the procedure for servicing the defrost heater and bimetal.
1. Run the diagnostics tests (see page 6-1)
and check for the proper operation of the
defrost heater and bimetal in step 07.
NOTE: If the bimetal is closed, the voltage at
the defrost heater terminals will be 120 volts
AC. The remaining steps will allow you to
check the resistance of the defrost heater and
bimetal.
2. Unplug the refrigerator or disconnect the
power.
3. Disconnect one of the wires going to the
defrost heater.
4. Set the ohmmeter to the R x 1 scale.
5. Touch the ohmmeter test probes to the
defrost heater terminals.
6. The meter should indicate approximately
19 to 27 Ω.
7. Touch the ohmmeter test probes to the
defrost bimetal wire connectors. The meter
should indicate as follows:
• With the bimetal below 20° F, the meter
should indicate continuity (0 Ω).
• With the bimetal above 50° F, the meter
should indicate an open circuit (infinite).
5-4
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or electrical shock.
MAIN CONTROL BOARD
Refer to page 4-18 for the procedure for servicing the main control board.
NOTE: See the chart for the main control board test specifications.
120 VAC SUPPLY
P5
1 2 3 4 5
INPUTS
P4
1 2 3 4
5 6 7 8
THERMISTORS
P3
1 2
DISPLAY BOARD
P2
1 2 3
3 4
PLUG
P2
P3
P4
P5
10 9 8 7 6
5 4 3 2 1
P6
OUTPUTS
P6
5 4 3 2 1
P7
OUTPUTS
P7
5-5
PIN #
1
2
3
1
2
3
4
1
2
3
DESCRIPTION
Communication Line
Display Voltage
GND
Ref. Thermistor
Frz. Thermistor
Ref. Thermistor Output
Frz. Thermistor Output
OUTPUT
N/A
12 VDC
GND
GND
GND
5 VDC
5 VDC
N/A
N/A
N/A
4
Ref. Door Input
120 VAC
5
Ice Maker Valve Input
120 VAC
6
Dispenser Valve Input
120 VAC
7
Bimetal Input
120 VAC
8
1
2
3
4
5
AC GND
AC L1
AC Neutral
AC Neutral
AC L1
N/A
AC GND
120 VAC
AC Neutral
AC Neutral
120 VAC
1
Condenser Fan
120 VAC
2
3
CONDITION
Measured at pins 2 & 3
Measured at pins 1 & 3
Measured at pins 2 & 4
Voltage present when door
is open
Voltage present when ice
maker is energized
Voltage present when
dispenser valve is energized
Voltage present when
bimetal is closed
Voltage present when
condenser fan is on
N/A
N/A
4
Defrost Heater
5
1
2
3
4
5
6
7
8
9
10
Air Door
Air Door
Compressor Drive
Evap. Fan Feedback
Evap. Fan Constant
Air Door
Air Door
Compressor Drive
Evap. Fan Ground
Evap. Fan Run Voltage
120 VAC
Voltage present when
defrost heater is on
N/A
3 - 6 VDC
N/A
12 VDC
Measured at pins 3 & 8
Measured at pins 5 & 9
3 - 6 VDC Measured at pins 3 & 8
Evap. GND
5 - 12 VDC Measured at pins 9 & 10
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or electrical shock.
ICE MAKER AUGER MOTOR
CRUSH/CUBE SOLENOID
Refer to page 4-9 for the procedure for servicing the crush/cube solenoid.
1. Unplug the refrigerator or disconnect the
power.
2. Disconnect one of the wires going to the
solenoid.
3. Set the ohmmeter to the R x 1 scale.
4. Touch the ohmmeter test probes to the
solenoid terminals.
5. The meter should indicate approximately
35 to 45 ohms.
Refer to page 4-9 for the procedure for servicing the ice maker auger motor.
1. Unplug the refrigerator or disconnect the
power.
2. Disconnect one of the wires going to the
auger motor.
3. Set the ohmmeter to the R x 1 scale.
4. Touch the ohmmeter test probes to the
auger motor terminals.
5. The meter should indicate approximately
2 to 4 ohms.
5-6
Electrical Shock Hazard
Disconnect power before servicing.
Replace all panels before operating.
Failure to do so can result in death or electrical shock.
WATER VALVE SOLENOID
DOOR SWITCH
Refer to page 4-22 for the procedure for servicing the water valve.
1. Unplug the refrigerator or disconnect the
power.
2. Disconnect the wire connectors from the
water valve solenoid terminals.
3. Set the ohmmeter to the R x 1 scale.
4. Touch the ohmmeter test probes to the
terminals of the ice maker solenoid. The
ohmmeter should indicate approximately
160 to 170 Ω.
5. Touch the ohmmeter test probes to the
terminals of the water dispenser solenoid.
The ohmmeter should indicate approximately 330 to 355 Ω.
Refer to page 4-5 for the procedure for servicing a door switch.
1. Unplug the refrigerator or disconnect the
power.
2. Disconnect one of the wires going to the
door switch.
3. Set the ohmmeter to the R x 1 scale.
4. Touch the ohmmeter test probes to the
door switch terminals.
5. The meter should indicate continuity (0 Ω).
NOTE: The door switches are normallyclosed.
6. Press the door switch actuator button and
the meter should indicate an open circuit
(infinite).
Water Dispenser Solenoid (5/16″ Outlet)
Ice Maker Solenoid (1/4″ Outlet)
5-7
— NOTES —
5-8
DIAGNOSIS & TROUBLESHOOTING
DIAGNOSIS
Warmer
Warmer
Cooler
Cooler
Freezer
Refrigerator
Water
Filter
Power
On/Off
PRE-DIAGNOSTICS CHECKS
Both the Power On/Off and the Water Filter
Reset keys must be functional. The refrigerator LEDs will show the step number, with the
bottom LED being #1. The results of the checks
are shown on the water filter status indicator.
Green indicates good and red indicates bad.
After 20 minutes, the control will default from
the Diagnostics Mode to a normal cooling
mode.
To enter the diagnostics mode:
• Press and hold the Water Filter Reset
keypad, and then immediately press and
hold the Power keypad. Continue to press
both keypads for 3 seconds, or until you
hear a beep.
• Confirm the refrigerator and freezer temperatures before beginning other checks.
• See if the compressor, evaporator, and
condenser fans are running.
• Check the position of the air door.
DIAGNOSTICS MODE
The Diagnostics Mode is used to:
• Check the refrigerator & freezer thermistors.
• Operate the evaporator fan motor at 3000
rpm.
• Operate the condenser fan motor and compressor.
• Check the defrost bimetal and heater.
To enter the Diagnostics Mode, the control
must be turned on, and be in a normal cooling
mode.
To advance the diagnostics sequence:
• To advance to the next step in the sequence, press and hold the Water Filter
Reset key for 2 seconds, or until you hear
a beep. The Diagnostics Chart on the
following page shows the step number and
the component being tested in each step.
6-1
DIAGNOSTICS CHART
Step
Component Tested
01
Freezer Thermistor.
02
Refrigerator Thermistor.
03
Evaporator Fan Motor.
04
Condenser Fan Motor.
05
Compressor.
06
Air Door.
07
Result*
Comment
Green
Red
Red
Green
Red
Red
Green
Red
Green
Green
Red
Green
Thermistor is within normal range.
Thermistor is open or less than –20°F.
Thermistor is shorted or greater than 115°F.
Thermistor is within normal range.
Thermistor is open or less than 10°F.
Thermistor is shorted or greater than 115°F.
Evaporator Fan Motor is On at correct speed.
Evaporator Fan Motor is On at incorrect speed.
Condenser Fan Motor is On.
Compressor is On at 4500 rpm.
Compressor is Off waiting for minimum (7 minute) Off delay.
Air Door fully opens.**
Green
Defrost Heater is energized, bimetal closed.
Bimetal/Defrost Heater.
Red
Bimetal open. †
Press the “Water Filter Reset” to exit diagnostics.
* Displayed on the Water Filter Indicator LED.
** The air door will close at step 01, and reset to the correct opening after exiting diagnostics.
†
The bimetal may be bypassed with an insulated jumper.
WATER FILTER INPUT (WFI) TEST
Testing The Ice Maker Valve Input
1. Open the refrigerator door.
2. Depress the refrigerator light switch.
3. Activate the ice maker and wait for a water
fill.
4. Read the WFI display during the fill. Red
indicates a normal input.
To confirm that the water valves are being
monitored by the WFI control, follow the procedures listed:
Testing The Dispenser Valve Input
1. Open the refrigerator door.
2. Depress the refrigerator light switch.
3. Place a container under the water spout.
4. Activate the water dispenser.
5. Read the WFI display. Yellow indicates a
normal input.
6-2
TROUBLESHOOTING CHART
PROBLEM
Condenser fan runs
but the compressor
will not start.
Refrigerator
compartment
too warm.
POSSIBLE CAUSE
TEST PROCEDURE-ACTION
No DC control voltage from main See "Component Testing" section for main PCB test procedure.
PCB to the inverter board.
Control voltage wires loose or
Check connections and repair as needed.
reversed.
Compressor.
See "Component Testing" section for compressor/inverter test procedure.
Inverter board.
See "Component Testing" section for compressor/inverter test procedure.
Refrigerator control set too
warm.
Set to a lower temperature.
Refrigerator thermistor.
Check wires and connectors. Run diagnostics and if a defective thermistor is
indicated, confirm with ohms test. See "Component Testing".
Look for ice or other blockage in air door. Run diagnostics test to operate air
door.
Run diagnostics test to operate the evaporator fan motor. Check for a
blocked fan blade and repair as necessary. Check for 5-17vdc from pin P7-9
to P7-10. If voltage is correct, replace the motor.
Check air door outlet and air returns for blockage.
See "Freezer compartment too warm."
Air door stuck closed or
inoperative.
Evaporator fan motor not
running.
Blocked air flow.
Warm freezer compartment.
Refrigerator
compartment
too cold.
Refrigerator control set too cold. Set to a higher temperature.
Check wires and connectors. Run diagnostics and if a defective thermistor is
Refrigerator thermistor.
indicated, confirm with ohms test. See "Component Testing".
Look for ice or other blockage in air door. Run diagnostics test to operate air
Air door stuck open or
door. Check for proper DC input voltage. If voltage is normal and door will
inoperative.
still not operate, replace air door.
Air door seal missing or damaged. Repair or replace seal.
Main PC board.
Run diagnostics test to operate air door.
Freezer control set too warm.
Freezer
compartment
too warm.
Freezer
compartment
too cold.
Refrigerator runs
too long.
Set to a lower temperature.
Check wires and connectors. Run diagnostics and if a defective thermistor is
Freezer thermistor.
indicated, confirm with ohms test. See "Component Testing".
Run diagnostics test to operate the evaporator fan motor. Check for a
Evaporator fan motor not
blocked fan blade and repair as necessary. Check for 5-17vdc from pin P7-9
running.
to P7-10. If voltage is correct, replace the motor.
Check
for a blocked fan blade and repair as necessary. See "Component
Condenser fan motor not running.
Testing" section for condenser fan motor test procedure.
Run diagnostics test to operate defrost system. Test defrost heater and biFrost blocking evaporator.
metal.
Freezer control set too cold.
Set to a higher temperature.
Freezer thermistor.
Check wires and connectors. Run diagnostics and if a defective thermistor is
indicated, confirm with ohms test. See "Component Testing".
No evaporator fan motor
feedback.
The fan motor will run at 3000 rpm.
Normal.
It is designed for this refrigerator to run almost constantly at the lowest
possible compressor speed. Starting and stopping the compressor uses
more power than continuous low rpm operation. Instruct customer.
6-3
— NOTES —
6-4
WIRING DIAGRAMS & STRIP CIRCUITS
WIRING DIAGRAM
P5
P4
P7
P3
P6
P2
7-1
STRIP CIRCUITS
THE COOLING CIRCUITS
The Compressor
Compressor
Inverter
Board
RD
L1
BK
RD/WH
WH
P7-3
N
P7-8
P5-2
Electronic
Control Board
P5-3
WH
Thermistor
The Condenser Fan Motor
Condenser
Fan Motor
L1
BK
P5-2
Electronic
Control Board
P6-1
7-2
WH/RD
WH
N
The Evaporator Fan Motor
Electronic Control
Board
P5-2
BK
L1
P7-4
P7-5
YL/BU
YL/RD
P7-9
WH
P5-3
N
P7-10
WH/VT YL/BK
YL
WH
Evaporator
Fan Motor
RD
BU
THE DEFROST CYCLE
The Defrost Heater
Bimetal
L1
BK
P5-2
Electronic
Control Board
P6-4
7-3
PK
Defrost
Heater
BR
WH
N
— NOTES —
7-4
PRODUCT SPECIFICATIONS
AND
WARRANTY INFORMATION SOURCES
IN THE UNITED STATES:
FOR PRODUCT SPECIFICATIONS AND WARRANTY INFORMATION CALL:
FOR WHIRLPOOL PRODUCTS: 1-800-253-1301
FOR KITCHENAID PRODUCTS: 1-800-422-1230
FOR ROPER PRODUCTS:
1-800-447-6737
FOR TECHNICAL ASSISTANCE WHILE AT THE CUSTOMER’S HOME CALL:
THE TECHNICAL ASSISTANCE LINE: 1-800-253-2870
HAVE YOUR STORE NUMBER READY TO IDENTIFY YOU AS AN
AUTHORIZED SERVICER
FOR LITERATURE ORDERS:
PHONE: 1-800-851-4605
IN CANADA:
FOR PRODUCT SPECIFICATIONS AND WARRANTY INFORMATION CALL:
1-800-461-5681
FOR TECHNICAL ASSISTANCE WHILE AT THE CUSTOMER’S HOME CALL:
THE TECHNICAL ASSISTANCE LINE: 1-800-488-4791
HAVE YOUR STORE NUMBER READY TO IDENTIFY YOU AS AN
AUTHORIZED SERVICER
CORPORATION
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