GE ZIC36ON Series Technical Service Manual

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GE Consumer Home Services Training

TECHNICAL SERVICE GUIDE

Monogram BMNF Refrigerators with

Electronic Controls

MODEL SERIES:

ZIC36ON

GEA01198

PUB # 31-9079 12/01

!

IMPORTANT SAFETY NOTICE

The information in this service guide is intended for use by
individuals possessing adequate backgrounds of electrical,
electronic, and mechanical experience. Any attempt to repair a
major appliance may result in personal injury and property
damage. The manufacturer or seller cannot be responsible for the
interpretation of this information, nor can it assume any liability in
connection with its use.

WARNING

To avoid personal injury, disconnect power before servicing this
product. If electrical power is required for diagnosis or test
purposes, disconnect the power immediately after performing the
necessary checks.

RECONNECT ALL GROUNDING DEVICES

If grounding wires, screws, straps, clips, nuts, or washers used
to complete a path to ground are removed for service, they must
be returned to their original position and properly fastened.

GE Consumer Home Services Training

Technical Service Guide

Copyright © 2001

All rights reserved. This service guide may not be reproduced in whole or in part
in any form without written permission from the General Electric Company.

TABLE OF CONTENTS

TECHNICAL DA T A .................................................................................................................... 3

MODEL NOMENCLA TURE ........................................................................................................ 4

RA TING PLATE........................................................................................................................ 4

MINI-MANUAL .......................................................................................................................... 4

SERIAL NUMBER ..................................................................................................................... 5

COMPONENT AND CONNECTOR LOCATOR VIEWS .............................................................. 6

CABINET................................................................................................................................... 9

Cabinet............................................................................................................................... 9

Machine Compartment ................................................................................................... 10

Door Closure Mechanism.................................................................................................11

Fresh Food Door and Hinges...........................................................................................11

Freezer Drawer ................................................................................................................ 11

Door and Drawer Gaskets...............................................................................................11

Rollers and Leveling....................................................................................................... 12

ICEMAKER.............................................................................................................................. 12

Water Valve and Water Line......................................................................................... 12

AIRFLOW ............................................................................................................................... 14

Damper ............................................................................................................................ 14

Evaporator Fan ................................................................................................................ 1 5

Condenser Fan ................................................................................................................ 18

Drain Pan Fan ................................................................................................................. 19

DEFROST SYSTEM ................................................................................................................ 19

Adaptive Defrost .............................................................................................................. 19

Normal Operating Characteristics.................................................................................. 20

Abnormal Operating Characteristics ............................................................................. 20

Liner Protection Mode .................................................................................................... 20

Defrost Heater..................................................................................................................21

Evaporator Thermistor .................................................................................................... 21

Defrost Overtemperature Thermostat ............................................................................ 21

CONTROL SYSTEM ............................................................................................................... 22

Touch Panel and Temperature Control Board.............................................................. 22

Main Control Board ......................................................................................................... 23

Main Control Board Locator T ables............................................................................... 26

Thermistors ...................................................................................................................... 30

ELECTRICAL SYSTEM ........................................................................................................... 31

Door and Drawer Switches............................................................................................. 31

Sabbath Switch ............................................................................................................... 31

Temperature Overload Device (TOD)............................................................................. 31

Schematic ........................................................................................................................ 32

REFRIGERA TION SYSTEM ............................................................................................... 33

Compressor ...................................................................................................................... 33

Condenser........................................................................................................................ 33

– 1 –

T able of Content s (cont.)

Condenser Loop .............................................................................................................. 33

Dryer................................................................................................................................. 34

Evaporator ....................................................................................................................... 34

Auxiliary Lines ................................................................................................................ 35

Refrigerant Charge ......................................................................................................... 35

DIAGNOSTIC MODE............................................................................................................... 36

DIAGNOSTIC FLOWCHARTS ................................................................................................ 37

PARTS LIST........................................................................................................................... 47

WARRANTY ............................................................................................................................ 57

– 2 –

TECHNICAL DATA

DISCONNECT POWER CORD BEFORE SERVICING
IMPORTANT - RECONNECT ALL GROUNDING DEVICES

All parts of this appliance capable of conducting
electrical current are grounded. 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.

CAUTION

To avoid personal injury when servicing the
condensing unit, stand on a ladder which will give
enough support to allow removal of the top panel
and safely allow access to service the unit.

ELECTRICAL SPECIFICATIONS

Max Defrost Control

W/No Door Openings .................... 60 hrs. @ 40 min

Evap Defrost Thermo Disc ............................... 65-45°F

Light Thermostat. .......................................... 190-130°F

Electrical Rating: 115V. AC 60 Hz. ................... 9.0 amp

Maximum Current Leakage............................. 0.50 mA

Maximum Ground Path Resistance .......... 0.14 Ohms

Energy Consumption ................................ 571 KWhr/yr

NO LOAD PERFORMANCE

CONTROL POSITION 37-0°F and

AMBIENT TEMPERATURE OF

70°F90°F

Fresh Food, °F .............................. 36-42 ............... 34-40

Frozen Food, °F ........................... (-3) -3 .............. (-3) -3

Percent Running Time ................. 25-37 ............... 45-57

REFRIGERATION DIAGNOSIS

To access the low pressure side of the system, install a
WR86X0097 valve only on the process tube extending

from the compressor case.

IMPORTANT SAFETY NOTICE

This information is intended for use by individuals
possessing adequate backgrounds of electrical,
electronic and mechanical experience. Any attempt
to repair a major appliance may result in personal
injury and property damage. The manufacturer or
seller cannot be responsible for the interpretation
of this information, nor can it assume any liability
in connection with its use.

REFRIGERATION SYSTEM

Compressor ................................................. 830 BTU/hr

Minimum Compressor Capacity

Vacuum, ..................................................... 26 inches

Minimum Equalized Pressure

@ 70°F.......................................................... 71 PSIG

@ 90°F........................................................ 104 PSIG

R134a Refrig. Chg. ................................................ 13 oz

REPLACEMENT PARTS

Temperature Control............................... WR55X10098

Relay ......................................................... WR07X10033

Overload .................................................. WR08X10022

Run Capacitor (15 uF) ............................... WR62X0080

Lamp Overtemperature Thermostat ..... WR50X10003

Defrost Heater Overtemperature

Thermostat ........................................... WR50X10030

Defrost Heater ......................................... WR51X10015

Condenser Fan Motor ............................. WR60X10053

Condenser Fan Blade .............................. WR60X10049

Evaporator Fan Motor ............................ WR60X10043

Evaporator Fan Blade ............................. WR60X10050

Main Board .............................................. WR55X10056

Thermistors (2-FF, 1-FZ, 1-EV) ................ WR55X10028

Drain Pan Fan Motor ............................... WR60X10051

Damper .................................................... WR09X10065

Evaporator ............................................... WR85X10007

Compressor ............................................. WR87X10041

Condenser ................................................ WR84X10030

Dryer ........................................................... WR86X0096

TO CABINET

WIRING

RED

ORANGE

BLACK

RUN

CAPACITOR

OVERLOAD

C

R

S

2

3

RELAY

GREEN

(GROUND)

– 3 –

MODEL NOMENCLATURE

ZI

Brand/Product

Z - Monogram

Style

I - Built In

Configuration

C - Bottom Mount

Color

S - Stainless
Blank - Trim Model

Size

360 - 36 Inches Wide

C

S

360

N

MA

LH

Door T ype

F - Flat
R - Right
L - Left Door Swing

Engineering

A - Initial Design
B - 1st Revision
C - 2nd Revision
D - 3rd Revision
Etc.

Model Year

L - 2001 Pre Energy
M - 2001 Energy

Icemaker/Exterior

N - Non Dispenser

RATING PLATE

The rating plate, located inside the fresh food
compartment under the right-hand storage
drawer, contains the model and serial numbers.
Additionally , the rating plate specifies the
minimum installation clearances, electrical
voltage, frequency , maximum amperage rating,
refrigerant charge, and type.

MINI-MANUAL

The mini-manual is located behind the grille panel at
the top of the unit. It is taped to the left side wall of the
machine compartment. When done, return the mini­manual to its original location for future use.

– 4 –

SERIAL NUMBER

The serial number consists of two letters, followed by six numerals. The two prefix letters of the
serial number indicate the month and year the product was manufactured. The year of manu­facture does not correspond with the model year of the model number.

NAJBEFRAMRPAYAMNUJLUJGUAPESTCOVONCED
0002ZAZDZFZGZHZLZMZRZSZTZVZZ
1002AAADAFAGAHALAMARASATAVAZ
2002DADDDFDGDHDLDMDRDSDTDVDZ
3002FAFDFFFGFHFLFMFRFSFTFVFZ
4002GAGDGFGGGHGLGMGRGSGTGVGZ
5002HAHDHFHGHHHLHMHRHSHTHVHZ
6002LALDLFLGLHLLLMLRLSLTLVLZ
7002MAMDMFMGMHMLMMMRMSMTMVMZ
8002RARDRFRGRHRLRMRRRSRTRVRZ
9002SASDDFSGSHSLSMSRSSSTSVSZ
0102SASDDFSGSHSLSMSRSSSTSVSZ
1102TATDTFTGTHTLTMTRTSTTTVTZ
2102VAVDVFVGVHVLVMVRVSVTVVVZ
3102ZAZDZFZGZHZLZMZRZSZTZVZZ
4102AAADAFAGAHALAMARASATAVAZ
5102DADDDFDGDHDLDMDRDSDTDVDZ
6102FAFDFFFGFHFLFMFRFSFTFVFZ
7102GAGDGFGGGHGLGMGRGSGTGVGZ
8102HAHDHFHGHHHLHMHRHSHTHVHZ
9102LALDLFLGLHLLLMLRLSLTLVLZ
0202MAMDMFMGMHMLMMMRMSMTMVMZ
1202RARDRFRGRHRLRMRRRSRTRVRZ
2202SASDDFSGSHSLSMSRSSSTSVSZ

Refrigerators using a number four (4) as the first digit of the serial number are designated as
Celya production.

– 5 –

COMPONENT AND CONNECTOR LOCATOR VIEWS

Compressor Dryer Condenser Fan

Capillary

Run Capacitor

Evaporator
Thermistor

Defrost
Overtemperature
Thermostat

Woodpecker Clip

Figure 1 - Machine Compartment – Side View

Evaporator

Accumulator

Defrost Heater

Figure 2 - Evaporator

– 6 –

Overload

PTCR Relay

Figure 3 - Compressor Overload/PTCR Relay

Capacitor

Water Filter

Water V alve

Sabbath Switch

Evaporator Fan Motor

Main Control
Board Cover

Relay/Overload

Cover

Figure 4 - Machine Compartment

Front View

Evaporator Fan

Connector

Figure 5 ­Evaporator Fan

– 7 –

6

Main Control
Board

Door Switch

Temperature Touch Panel

Fresh Food
Thermistors

Sabbath Switch

Damper

Cold Air
Outlets

Figure 5 - Fresh Food Compartment

Icemaker

Freezer Drawer Switch

Air Duct

P0003329

Freezer Thermistor

Figure 6 - Freezer Compartment

– 8 –

P000337

CABINET

Raise
Grille
Panel
to Stop
Position

Remove 2 Screws

Cabinet

The outer case is made of galvanized steel. The
fresh food and freezer liners are painted metal with
a smooth finish. Individual fresh food and freezer
compartments provide separation and enhanced
individual control between the compartments. The
metal liner provides a thermal break between the
interior of the refrigerator and freezer
compartments and reduces the transfer of heat
from the room into the fresh food and freezer
compartments. The liner is not removable or
replaceable.

Machine Compartment

The machine compartment is located on the top of
the unit and has a movable chassis that can be
extended from the front of the unit to provide
access to the refrigeration system and
components.

Caution: Avoid kinking the refrigeration lines when
sliding the chassis out and back in.

To extend the chassis:

1. Raise the grille panel to stop position.

2. Remove the wire guard and rocker switch
panel.

3. Disconnect the door closure mechanism
spring from the pin and remove the pin by
turning it counterclockwise.

4. Remove 3 screws securing the water filter
mounting bracket.

5. Remove 3 (7/16-in.) bolts from chassis
bottom.

6. Loosen 2 (7/16-in.) chassis track bolts.

7. Pull the chassis forward until it reaches the
stops in the tracks, working the refrigeration
tubing as you pull the chassis out.

Note. When sliding the chassis back into position,
be certain the lines and wiring have not fallen
behind the chassis.

Bolts

Track Bolt

Right Side of Machine Compartment

Track Bolt

Bolt

Left Side of Machine Compartment

Screws

– 9 –

Door Closure Mechanism

The door closure mechanism uses a spring to
provide positive door closure from 30 degrees.
The door closure mechanism actuator arm has a
spring attached to the rear and is supported by
guide rollers on either side of the base channel.
The roller circumferences and the actuator arm
detents are matched for smooth operation. The
arm is attached to the door with an Allen head
shoulder bolt.

The closure mechanism allows easy opening to
approximately 90 degrees, where the arm has a
detent to permit the door to remain open at 90
degrees with minimal tension. Once the door is
opened beyond 90 degrees, the closure
mechanism pulls the door open until the closure
arm engages the door stop at approximately 130
degrees. The reverse action occurs when the door
is closed.

Note: The door closure mechanism and the top
door hinge are held by the same bolts. Take the
necessary precautions to secure the fresh food
door when the door closure mechanism is being
removed.

Spring

Bolts

Actuator Arm

Allen Head Bolt

• The actuator arm is spring loaded with moderate
spring tension.

To remove the door closure mechanism

1. Remove the 3/16-in. Allen head bolt and
spacer from the door and actuator arm.

2. Disconnect the spring from the pin on the top
of the cabinet and pull the actuator arm from
the closure mechanism.

3. Remove 4 (3/8-in.) bolts and the door closure
mechanism.

– 10 –

P0003336

Fresh Food Door and Hinges

WARNING: Use the appropriate safety equipment

and lifting techniques.
Caution: Use wood or a heavy plastic sheet to

protect the floor where the door will be placed.
Note: Unit must be removed from its installation

to remove center hinge.

Door

The door is of one-piece construction with foam
insulation. One-piece construction provides
superior thermal performance and reduces air
infiltration.

Center Hinge

The inner door panel and outer door panel cannot
be separated and must be replaced as an
assembly.

1. Remove all food and bins from the inner door
liner.

2. Tape door to cabinet.

3. Remove the door closure mechanism (see
previous procedure).

4. Remove the upper hinge.

5. Remove tape and lift the door off center hinge.

6. Remove 4 T-27 Torx screws and center hinge.

Freezer Drawer

1. Loosen 4 screws connecting each side of the
freezer door to the slide/support assemblies.

2. Lift door up and out to remove.

Door

Slide/Support
Assembly

Left Side of Freezer Door

Screws

Screws

Door and Drawer Gaskets

The fresh food door and freezer drawer have
magnetic gaskets that create a positive seal to the
front of the steel cabinet. The magnetic door
gaskets are secured to the fresh food door and
freezer drawer by a barbed edge that locks into a
retainer channel.

1. St arting at any corner , pull the old gasket out of
the retainer channel.

2. Soak the new gasket in warm water to make it
pliable.

3. Push the barbed edge of the gasket into the
retainer channel.

– 11 –

Rollers and Leveling

Icemaker

Feeler Arm

Power Switch

Green
Power Light

Hex Nut

Wheel

Leveling Leg

This model has 4-point leveling provided by
adjustable rollers on the rear and leveling legs on
the front. It also has 2 nonadjustable front rollers
that are used only for unit positioning.

T o level the unit:

1. Turn the 7/16-in. hex nut located above the
front rollers to adjust the roller on the rear of
the unit. Turn clockwise to raise,
counterclockwise to lower.

2. Turn the front legs with a 1-1/4

in. open end

wrench to adjust the front of the unit. T urn
clockwise to raise, counterclockwise to lower.

ICEMAKER

The icemaker is mounted to the upper left wall of
the freezer cabinet. Under normal operating
conditions, temperatures, door openings, and food
load, the icemaker is capable of producing
approximately 100 to 130 cubes in a 24-hour
period.

Note: The freezer door light switch, located on
the back wall of the freezer, also serves as an
icemaker interlock (or kill) switch. It will open the
circuit to the icemaker any time the freezer drawer
is open.

To service the icemaker, refer to GE Publication
31-9063.

Water Valve and Water Line

The water valve is mounted to the side of the
water filter bracket in the machine compartment.

A plastic water line is routed from under the unit,
up the back of the cabinet, into the machine
compartment, and to the water valve.

A low-pressure plastic water line supplies water to
the icemaker from the water valve. The plastic
water line is routed from the water valve, out the
back of the machine compartment, down the back
of the cabinet to the fill tube grommet. The
icemaker fill tube is also plastic.

To Replace the Water V alve
Note: Some water may leak from the water supply

line and valve when they are disconnected.

1. Shut off the water supply to the freezer .

Water V alve

P0003393

Water Filter Bracket

– 12 –

2. Raise the machine compartment cover panel.

P

3. Remove 2 Phillips screw attaching the water
valve cover.

4. Remove 2 Phillips screw attaching the water
valve to the filter bracket.

5. Disconnect the wiring harness connector and
2 water lines from the water valve and remove.

To Replace the Water Line from the Water V alve to
the Fill Tube Grommet

Note: Some water may leak from the water supply
line and valve when they are disconnected.

1. Shut off the water supply to the freezer .

2. Remove the unit from its installation.

3. Remove 14 (1/4-in.) screws and the metal
access cover.

4. Disconnect the water line at the quick
connector by pushing in the white collar on the
quick connector while pulling the water line out.

5. Loosen the clamp at the fill tube grommet and
remove the water line.

Water V alve

Screw

Access Cover

P0003413

– 13 –

AIRFLOW

Damper

The fresh food compartment receives chilled air via an electronic damper that is positioned at the top
rear of the fresh food compartment. The damper is controlled by the main control board and when
open, allows the evaporator fan to push chilled air from the evaporator into the fresh food compartment.

To remove the damper

1. Remove the light cover .

2. Remove 8 Phillips screws and the light
assembly.

3. Disconnect the damper wiring.

4. Remove 2 Phillips screws and the damper.

Light Assembly

Screws

Screws

Screws

P0003387

Damper

P0003380

– 14 –

Evaporator Fan

GEA01197

5/16 +/- .03

Airflow

The position of the fan blade in relation to the
shroud is critical. Refer to evaporator fan
adjustment graphic for specifications.

If the fan shorts, it will damage the main control
board. If the resistor on the main control board is
burnt, you must replace the fan and the board (see
photo).

Evaporator Fan Adjustment

Evaporator and Condenser Fan Resistors

Pin 2

Pin 3

Pin 4

Pin 5

FF2 Thermistor

FZ Thermistor

Evaporator Thermistor

+5V

Pin 6

Personality Input 1

Pin 2

Pin 3

J4 Pin 1

Comm. Tx/Rx

Comm. +12V

Comm. Common

Pin 4

Pin 5

Discrete Disp. Input 1

Discrete Disp. Input 2

Pin 2

Pin 3

J3 Pin 1

Damper - Blue

Damper - White

Damper - Red

Pin 4

Pin 5

Pin 6

Pin 7

Damper - Yellow

FF Encoder Select

FZ Encoder Select

Encoder Signal

Pin 2

J2 Pin 1

Evaporator Fan Tach.

Personality Input 5

Pin 8

Pin 9

Pin 10

Encoder Signal

Encoder Signal

Encoder Signal

Pin 3

Pin 4

Pin 5

Pin 6

Fan Common

Evaporator Fan

Condenser Fan

FF Fan

J1 Pin 1

FF1 Thermistor

Pin 7

Pin 8

QuickChill Fan

Fan +12V

Pin 7

Pin 8

Pin 9

Personality Input 2

Personality Input 3

Personality Input 4

Pin 2

Pin 3

Pin 4

J5 Pin 1

QuickChill Damper1 +

QuickChill Damper1 -

QuickChill Damper2 +

QuickChill Damper2 -

Low Voltage DC

120 VA C

Pin 5

Pin 6

+5V

QuickChill Thermistor

Evaporator Fan Resistor

J2 Connector

GEA01140

Condenser Fan Resistor

Compressor

Defrost Heater

Line

Pin 1 J8

Pin 1 J9

Pin 1 J11

Monogram Drain Pan Heater

Neutral

NIC

FZ Door Switch

Pin 9 J7

Pin 8

Pin 1 J12

Pin 7

FF Door Switch

QuickChill Heater

Auger Motor Interlock

Water Valve

Pin 6

Pin 5

Pin 4

Pin 3

QuickChill Htr.

Pin 1

Crusher Solenoid

Auger Motor

Pin 2

Pin 1

QuickChill Htr.

Pin 2

GEA01196

Bad Evaporator Fan Resistor

– 15 –

The evaporator fan utilizes a permanent magnet, 4-pole, DC motor that can operate at three different
speeds: high, medium, and low (medium and low are the same speed, controlled by the main control
board). The speed of the fan is controlled by the voltage output from the main control board. Voltage
output from the control board to the fan is 12.6 VDC; however, in order to regulate the speed of the fan,
the control board uses Pulse Width Modulation (PWM) during low speed and medium speed operation.
When operating in low and medium speed, voltage is sent in pulses (much like a duty cycle) as
opposed to an uninterrupted flow . This pulsing of 12.6 VDC produces effective voltage being received at
the motor, which is the equivalent to a reduction in volt age. Fan speed will be selected and maintained
by the control board regulating the length and frequency of the 12.6 VDC pulse.

One complete revolution of the motor is comprised of all 4 poles. To determine the rpm of the fan:
Measure the frequency being applied to the motor . Multiply this number by 15 (60 seconds divided by 4
poles). For example, a frequency measurement of 200 Hz multiplied by 15 would show a fan speed of
3000 rpm (15 x 200 = 3000). Temperature may cause some fan speed variation. Fan speed may vary
+/- 5%, depending on the temperature, with higher temperatures causing slightly higher speeds.

The evaporator fan motor uses a 4-wire connection, utilizing a common wire (white), feedback/rpm
wire (blue), supply wire (red), and a signal wire (yellow).

12 VDC

12 VDC

0 VDC

8 VDC

4 VDC

12VDC

0 VDC

12 VDC

0 VDC

High Speed (12 VDC measured)

Medium and Low S peed (8 VDC measured)

EVAPORATOR FAN SPEEDS

High Speed (12 VDC measured)

Medium Speed (8 VDC measured)

Low Speed (4 VDC measured)

GEA01139

– 16 –

White Wire (DC Common)
The white wire is the DC common wire used for

testing. During repairs, DC polarity must be
observed. Reversing the DC polarity will cause a
shorted motor and/or board.

Red Wire (Supply)
Each motor uses an internal electronic controller

to operate the motor. Supply volt age from the
main control board remains at a constant
12 VDC.

Blue Wire (Feedback/RPM)
The blue wire feeds rpm (speed) information to

the main control board, allowing the board to
maintain consistent fan speeds. Loss of feedback
from the blue wire will result in the fan accelerating
to maximum speed. Measure the fan rpm using
the frequency between the blue and white wires.

Note: Fan operates at the same speed in low and
medium.

High speed - 195 to 200 Hz
Medium speed - 145 to 160 Hz
Low speed - 145 to 160 Hz (same as medium)

Yellow Wire (Signal)
The yellow wire is the input wire from the main

control board. The main control board provides

8.1 VDC effective voltage for low speed, 8.1 VDC
effective voltage for medium speed, and 12.6 VDC
for high speed. The fan will operate in low speed
only when the fresh food thermistor is satisfied.

Compressor

Defrost Heater

Pin 1 J8

Pin 1 J9

Pin 2

Pin 3

J4 Pin 1

Comm. Tx/Rx

Comm. +12V

Comm. Common

Pin 4

Pin 5

Discrete Disp. Input 1

Discrete Disp. Input 2

Line

Pin 1 J11

Pin 2

Pin 3

Pin 4

Pin 5

J3 Pin 1

Damper - Blue

Pin 6

Damper - White

Damper - Red

Damper - Yellow

FF Encoder Select

FZ Encoder Select

J2 Pin 1

Evaporator Fan Tach.

Monogram Drain Pan Heater

Pin 1 J12

Pin 7

Pin 8

Pin 9

Pin 10

Encoder Signal

Encoder Signal

Encoder Signal

Encoder Signal

Pin 2

Pin 3

Pin 4

Pin 5

Personality Input 5

Fan Common

Evaporator Fan

Condenser Fan

Neutral

NIC

FZ Door Switch

FF Door Switch

Pin 9 J7

Pin 8

Pin 7

Pin 6

J1 Pin 1

FF1 Thermistor

Pin 6

Pin 7

Pin 8

FF Fan

QuickChill Fan

Fan +12V

QuickChill Heater

Auger Motor Interlock

Water Valve

Crusher Solenoid

Auger Motor

Pin 5

Pin 4

Pin 3

Pin 2

Pin 1

Pin 2

Pin 3

Pin 4

Pin 5

FF2 Thermistor

FZ Thermistor

Evaporator Thermistor

+5V

QuickChill Htr.

Pin 1

Pin 6

Pin 7

Pin 8

Pin 9

Personality Input 1

Personality Input 2

Personality Input 3

Personality Input 4

Pin 2

Pin 3

J5 Pin 1

QuickChill Damper1 +

QuickChill Damper1 -

QuickChill Damper2 +

Low Voltage DC

120 VA C

QuickChill Htr.

Pin 2

GEA01196

Pin 4

Pin 5

Pin 6

QuickChill Damper2 -

+5V

QuickChill Thermistor

Note: When testing these motors:

• You cannot test with an ohmmeter.

• DC common is not AC common.

• Verify 2 volt age 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.

– 17 –

To remove the fan

1. Remove the drawer (see procedure).

2. Remove 5 screws securing the rear duct.

3. Disconnect the freezer light and light thermostat
wiring and the remove duct.

4. Disconnect the wire connector from the fan motor.

5. Remove 2 screws from the fan motor bracket and
remove the evaporator fan motor .

Condenser Fan

The condenser fan utilizes a DC motor that operates
at a single speed and is mounted in the machine
compartment. When the fan is operating, air is pulled
through the condenser , drawing air through the coils.
The air is then exhausted past the compressor and out
the front of the refrigerator on the right side.

Inlet air is available through the left front and left rear of
the machine compartment.

If the fan shorts, it will damage the main control board.
If the resistor on the main control board is burnt, you
must replace the fan and the board (see photo page 15).

Screws

Wiring Harness Connector

Condenser Fan Adjustment

1/2"

+/- .100

Fan

Housing

The condenser fan is mounted with screws to a fan
shroud and mounting bracket in back of the
condenser.

To remove the fan

1. Extend the machine compartment chassis (see
Machine Compartment).

2. Disconnect the condenser fan wiring at the
harness connector.

3. Remove 4 screws and fan assembly.

4. Remove fan blade, 2 screws from the fan
mounting bracket, and fan motor.

Note: A magnetic tip screwdriver may be required to
install the condenser fan mounting screws.

To install lower fan mounting screw:

1. Pull back foam insulation to visually locate screw
hole.

2. Locate hole with fingers of left hand.

Screws

0.375"

Airflow

Air Flow

0.50" ± 0.05

Motor

Bracket

GEA01148

3. Place screw on the tip of the screwdriver.

4. Use your right hand to maneuver the screwdriver
and use your left hand to guide the screw into the
hole.

Insulation

P0003374

– 18 –

Drain Pan Fan

• Pre-Chill Operation

The Monogram BMNF has an auxiliary evaporation
fan located under the unit. The purpose of this fan
is to improve the evaporation rate of drain water
should extreme conditions occur.

Should this fan malfunction, there is no
replacement procedure. The absence of this fan
will not affect drain water evaporation under
normal conditions. A stainless steel hot gas loop
routed through the drain pan will provide ample
evaporation.

To remove the fan

1. Remove toe kick (2 screws).

2. Slide out and remove drain pan.

3. Disconnect harness from fan motor.

4. Remove fan by unscrewing 2 screws
accessible from within the pan housing.

DEFROST SYSTEM

• Defrost Heater Operation

• Dwell Period

• Post Dwell
(See Pub. #31-9062 for more information on

Adaptive Defrost.)
Adaptive Defrost (Cooling Operation)
During the cooling operation, the main control

board monitors door opening (fresh food door and
freezer drawer) and compressor run times. The
board counts the time the doors are open. It
reduces the length between defrosts by 300
seconds (multiplication factor) for each second
that each door is open (if both doors are open, it
reduces it by twice the amount). The multiplication
factor reduces compressor run time. If the doors
are not opened, the compressor will run up to 60
hours between defrosts. If the doors are opened
frequently and/or for long periods of time, the
compressor run time between defrosts will be
reduced to as little as 8 hours.

Adaptive Defrost

Adaptive Defrost can be described as a defrost
system that adapts to a refrigerator’s surrounding
environment and household usage.

Unlike conventional defrost systems that use
electromechanical timers with a fixed defrost cycle
time, Adaptive Defrost utilizes an intelligent,
electronic control to determine when the defrost
cycle is necessary. In order to accomplish the
correct defrost cycle time, the main control board
monitors the following refrigerator operations:

• Length of time the refrigerator doors were open

since the last defrost cycle

• Length of time the compressor has run since
the last defrost cycle

• Amount of time the defrost heaters were on in
the last defrost cycle

Adaptive Defrost is divided into 5 separate cycles.
Those operations are:

Adaptive Defrost (Pre-Chill Operation)

F
R
E
E
Z
E
R

A
I
R

T

E
M
P
E
R
A
T
U
R
E
S

F˚ / C˚

25˚ / -4˚
20˚ / -7˚
15˚ / -9˚
10˚ / -12˚

5˚ / -15˚

0˚ / -18˚

-5˚ / -21˚

-10˚ / -23˚

-15˚ / -26˚

-20˚ / -29˚

PRE-CHILL MODE

09:00

08:00

10:00

11:00

12:00

13:00

14:00

15:00

16:00

17:00

18:00

DefrostPre-Chill

When the main control board determines that
defrost is necessary, it will force the refrigerator
into a continuous cool mode (pre-chill). During pre­chill, the freezer temperature may be driven below
the set point. However, the fresh food temperature
will be regulated by the evaporator fan running at
low speed. Pre-chill will last for 15 minutes. These
models do not have a defrost holdoff.

• Cooling Operation

– 19 –

Adaptive Defrost (Defrost Heater Operation)
After 15 minutes of pre-chill operation, the main

control board turns off the compressor, condenser
fan, and evaporator fan.

Normal Operating Characteristics That Are
Different from Previous Models

• Evaporator fan running, without compressor or

condenser fan.

During defrost operation, the main control board
monitors the evaporator temperature using
evaporator thermistor inputs. T ypically, the
evaporator thermistor will sense a temperature of
45 °F within 20 minutes. When the thermistor
senses 45 °F, the main control board will terminate
defrost heater operation. Maximum defrost cycle
(heater on) time is 40 minutes (main control board
time out).

The defrost system is protected by a defrost
termination thermostat (bimetal switch). The
thermostat opens when the evaporator
temperature raises to 65 °F and closes when the
evaporator temperature lowers to 45 °F.

Adaptive Defrost (Dwell Period)
After defrost heater operation has been terminated

by the main control board, a 5-minute dwell period
occurs. During this period, the compressor,
condenser fan, and evaporator fan remain off. The
remaining frost melting from the evaporator will
continue to drip and drain so that, prior to the
cooling operation, the evaporator will be totally
clear of any moisture. Af ter the 5-minute dwell
period, the unit goes into post dwell.

• Post Dwell (Adaptive Defrost), compressor,

and condenser fan on with evaporator fan off
after defrost cycle.

• Liner Protection Mode, fan comes on when the
doors are open for 3 minutes.

• Different sound levels can be heard when the
fan changes speed; however, the fan should
never be heard oscillating between speeds.

• Response time for drastic temperature change
is 2 to 10 minutes. The main control board will
only respond to 8 °F of temperature change
per minute as determined by resistance of
sensor.

Abnormal Operating Characteristics
(Incorrect Operation)

• Rapid fan speed changes, fan takes at least
1 minute to change speeds.

• Compressor running without the condenser
fan. The compressor and condenser fan
should always run at the same time.

Adaptive Defrost (Post Dwell)
The post dwell period is designed to cool the

evaporator before circulating air within the
refrigerator . This prevent s any residual heat on the
evaporator from being distributed in the freezer .
During this period, the compressor is on and the
condenser fan is on, but the evaporator fan is off.
Post dwell will last 10 minutes or until the
evaporator temperature reaches 30 °F on these
models.

Liner Protection Mode

The liner protection mode will activate if either of
the doors has been open for 3 minutes. This
mode will start the evaporator fan on high speed.

This mode is controlled by 2 timers. Timer #1
monitors door-open time. A 3-minute door-open
count begins when the door is opened. If
3 minutes elapse before the door is closed, the
liner protection mode will become active. Once
the door is closed, timer #1 resets and liner
protection mode goes into standby. In standby,
normal fan and damper operations resume and
timer #2 begins a 3-minute door-closed count.
If 3 minutes elapse without a door opening, liner
protection mode will completely deactivate. If a
door is opened within the timer #2 door-closed
count, the remaining time in the door-closed count
will be deducted from the timer #1 door-open
count.

– 20 –

Defrost Heater

Caution: Use care to avoid scratching the finish

on unit walls.
The defrost heater is a single-calrod type, radiant

heater mounted under the evaporator.
To remove the defrost heater:

1. Remove the drawer (see procedure).

2. Remove upper right slide/support assembly by
removing 3 Phillips screws.

3. Remove lower right slide/support assembly by
removing 3 Torx screws.

4. Remove 5 screws, disconnect light and light
thermostat wiring, and remove rear duct.

5. Remove 4 screws and evaporator cover.

6. Disconnect the heater lead wires.

7. Remove the clip securing the heater to the
evaporator and remove the heater .

Screws

P0003407

Screws

Evaporator Thermistor

Evaporator Thermistor

The evaporator thermistor is mounted on the
upper left side of the evaporator . The defrost cycle
will terminate when the main control board detects
45 °F from the evaporator thermistor. The main
control board must sense 45 °F in less than 40
minutes, or the defrost cycle will time out. A verage
time to defrost is 20 minutes. Defrost time should
not exceed 40 minutes. Defrost time does not
include dwell and post dwell periods.

Defrost Overtemperature Thermostat

The defrost overtemperature thermostat (bimetal
switch) is mounted on the evaporator and provides
overtemperature protection during defrost. This
thermostat will open at 65 °F and will close
at 45 °F.

Note: The main control board will not know if the
heater does not come on due to a broken heater,
open defrost overtemperature thermostat, or open
wiring harness. The defrost heater is controlled by
maximum time on the main control board or
temperature at the evaporator thermistor .

Defrost Heater

Defrost Overtemperature Thermostat

P0003343

Clip

P0003343

– 21 –

CONTROL SYSTEM

Temperature Control Assembly

Touch Panel and
Temperature Control Board

The temperature control assembly is located at
the top front of the fresh food compartment and
contains the touch panel and temperature control
board.

The temperature control board receives switched
DC voltage from the main control board. Input
consists of pins 2 to 3. Failure of input results in
default to most recent setting. Pin 1 provides
digital communication between the temperature
control board and the main control board. Failure
of communication results in erratic control.

To remove the temperature control assembly:

1. Remove the light cover .

2. Remove 8 Phillips screws and the light
assembly.

Note: Temperature control assembly is mounted
on 3 slotted fasteners. Fasteners do not need to
be loosened or removed.

Light Assembly

Screws

Screws

Touch Panel

P0003340

P0003387

3. Carefully cut RTV seal between temperature
control assembly and cabinet.

4. Slide the temperature control assembly back
to release it from the slotted fasteners and
lower the assembly.

5. Disconnect the wiring connector from the
temperature control board.

6. Slide the touch panel out of the temperature
control assembly.

7. Remove 2 screws and the temperature control
board.

Note: Use RTV 102 to reseal temperature control
assembly when reassembling.

– 22 –

– 23 –

GEA00859

Pin 1 J8

Compressor

Pin 1 J9

Defrost Heater

Pin 1 J11

Line

Evaporator Fan Tach.

J2 Pin 1

Personality Input 5

Pin 2

Fan Common

Pin 3

Evaporator Fan

Pin 4

Condenser Fan

Pin 5

FF Fan

Pin 6

QuickChill Damper1 +

J5 Pin 1

QuickChill Damper1 -

Pin 2

QuickChill Damper2 +

Pin 3

QuickChill Damper2 -

Pin 4

+5V

Pin 5

QuickChill Thermistor

Pin 6

QuickChill Fan

Pin 7

Fan +12V

Pin 8

FF1 Thermistor

J1 Pin 1

FF2 Thermistor

Pin 2

FZ Thermistor

Pin 3

Evaporator Thermistor

Pin 4

+5V

Pin 5

Personality Input 1

Pin 6

Personality Input 2

Pin 7

Personality Input 3

Pin 8

Personality Input 4

Pin 9

Damper - Blue

J3 Pin 1

Damper - White

Pin 2

Damper - Red

Pin 3

Damper - Yellow

Pin 4

FF Encoder Select

Pin 5

Comm. Tx/Rx

J4 Pin 1

Comm. +12V

Pin 2

Comm. Common

Pin 3

Discrete Disp. Input 1

Pin 4

Discrete Disp. Input 2

Pin 5

FZ Encoder Select

Pin 6

Encoder Signal

Pin 7

Encoder Signal

Pin 8

Encoder Signal

Pin 9

Encoder Signal

Pin 10

Pin 1 J12

Monogram Drain Pan Heater

Pin 9 J7

Neutral

Pin 8

NIC

Pin 7

FZ Door Switch

Pin 6

FF Door Switch

Pin 5

QuickChill Heater

Pin 4

Auger Motor Interlock

Pin 3

Water Valve

Pin 2

Crusher Solenoid

Pin 1

Auger Motor

Pin 1

QuickChill Htr.

Pin 2

QuickChill Htr.

Low V oltage DC

120 VA C

Main Control Board

The main control board, located behind a metal cover at the top of the refrigerator in the machine

compartment, manages the operation of the refrigerator by calculating response from various inputs.

ROTCENNOC NIP TUPNI TUPTUO NOITCNUF

1J1CDV

1J2CDV

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1J8CDV

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ROTCENNOC NIP TUPNI TUPTUO NOITCNUF

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2J5 CDV

2J6 .dnuorgnafnapniarD

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senimreted,snipytilanosreprehtohtiwnoitanibmocnidetcennocnehw,tahtnipnoitceleS

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SNOITINIFEDNIPDRAOBLORTNOC

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ROTCENNOC NIP TUPNI TUPTUO NOITCNUF

3J1 CDV.rotomreppetsrepmaD

3J2 CDV.rotomreppetsrepmaD

3J3 CDV.rotomreppetsrepmaD

3J4 CDV.rotomreppetsrepmaD

SNOITINIFEDNIPDRAOBLORTNOC

– 24 –

SNOITINIFEDNIPDRAOBLORTNOC

ROTCENNOC NIP TUPNI TUPTUO NOITCNUF

4J1

4J2 CDV.ylppusCDV-21
4J3 CDV.nommocCD

ROTCENNOC NIP TUPNI TUPTUO NOITCNUF

7J6CAV

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.ezigreneottengam

ROTCENNOC NIP TUPNI TUPTUO NOITCNUF

8J1 CAV

ROTCENNOC NIP TUPNI TUPTUO NOITCNUF

9J1 CAV

ROTCENNOC NIP TUPNI TUPTUO NOITCNUF

11J1CAV

SNOITINIFEDNIPDRAOBLORTNOC

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SNOITINIFEDNIPDRAOBLORTNOC

1LdehctiwsroflaitnetoptupniCAV021-stiucricdraoblortnocotegatlov1LtnatsnoC

.slanimret

– 25 –

Main Control Board Locator T ables

draoBlortnoCniaM

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CDV

CDV

CDV

CDV

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– 26 –

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CDV3.2egatloVgnidnatS

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– 27 –

draoBlortnoCniaM

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Low V oltage DC

120 VA C

QuickChill Htr.

QuickChill Htr.

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)neporoodZF(CAV

Compressor

Pin 1 J8

Defrost Heater

Pin 1 J9

Line

Pin 1 J11

Monogram Drain Pan Heater

Pin 1 J12

Neutral

NIC

Pin 9 J7

Pin 8

niP roloCeriW tuptuO/tupnI gnidaeRegatloVniPotniP

FZ Door Switch

FF Door Switch

QuickChill Heater

Auger Motor Interlock

Pin 7

Pin 6

Pin 5

Pin 4

Water Valve

Crusher Solenoid

Auger Motor

Pin 3

Pin 2

Pin 1

,11J,9J,8JdraoBlortnoCniaM

)ediSegatloV-hgiH(srotcennoC

Pin 1

Pin 2

GEA01194

8JetihWtuptuOCAV021=9nip7Jot8J
9JdeRtuptuOCAV021=9nip7Jot9J

11JnworBtupnICAV021=9nip7Jot11J

– 28 –

niP roloCeriW tnenopmoC

1deRerutarepmeT

2nworBerutarepmeT

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Pin 2

Pin 3

Pin 4

Pin 5

Pin 2

Pin 3

Pin 4

Pin 5

Pin 6

Pin 7

Damper - Red

Damper - Yellow

FF Encoder Select

Pin 8

FZ Encoder Select

Encoder Signal

Encoder Signal

J4 Pin 1

Comm. Tx/Rx

Comm. +12V

Comm. Common

Discrete Disp. Input 1

Discrete Disp. Input 2

J3 Pin 1

Damper - Blue

Damper - White

Pin 9

Pin 10

Encoder Signal

Encoder Signal

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Pin 2

Pin 3

J1 Pin 1

FF1 Thermistor

FF2 Thermistor

FZ Thermistor

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Pin 4

Pin 5

Pin 6

Pin 7

Pin 8

Pin 9

Evaporator Thermistor

+5V

Personality Input 1

Personality Input 2

Personality Input 3

Personality Input 4

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Pin 2

Pin 3

Pin 4

Pin 5

Pin 6

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J5 Pin 1

QuickChill Damper1 +

QuickChill Damper1 -

QuickChill Damper2 +

Low Voltage DC

120 VAC

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QuickChill Damper2 -

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QuickChill Thermistor

GEA01195

niP roloCeriW tnenopmoC

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Pin 2

Pin 3

Pin 4

Pin 5

J2 Pin 1

Evaporator Fan Tach.

Personality Input 5

Fan Common

Evaporator Fan

Condenser Fan

Pin 6

Pin 7

FF Fan

QuickChill Fan

Pin 8

Fan +12V

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– 29 –

Thermistors

This main control board uses input from 4 thermistors. These thermistors are located in the fresh food
section, the freezer section, and on the evaporator. The main control board monitors the thermistors to
determine the temperature in these areas of the unit and determines which components to run and
when to run them based on this information.

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– 30 –

ELECTRICAL SYSTEM

Door and Drawer Switches

The door switch (fresh food door or freezer drawer) closes when the door is open. When the door
switch is closed, L1 is provided to the compartment light(s). The main control board receives L1 input
on pin 6, J7 when the fresh food door switch is closed (door open). The main control board receives L1
input on pin 7, J7 when the freezer drawer switch is closed (door open).

Sabbath Switch

The Sabbath switch is located behind the grille panel on the control board cover and will activate the
Sabbath feature. The Sabbath switch will open the light circuit preventing the interior lights from
receiving L1; therefore, the lights will not operate when either door is open.

T emperature Overload Device (T OD)

A temperature overload device is wired in series with both the fresh food light and the freezer light. If
either light should reach excessive temperatures due to a door/drawer being open for an extended
period, the corresponding TOD will open the light circuit. The TOD will open at 190 °F and close
at 130 °F.

– 31 –

Schematic

– 32 –

REFRIGERATION SYSTEM

CONDENSER

COMPRESSOR

PROCESS TUBE

DRYER

SUCTION TUBE

EVAPORATOR

CONDENSER LOOP

CAPILLARY

The major components of the refrigeration system
are a reciprocating-type compressor, condenser,
condenser loop, dryer, and evaporator. These
components, except for the condenser loop, are all
replaceable separately .

Compressor

The compressor is a reciprocating type. Refer to
the mini-manual for the BTU/hour rating and the
compressor capacity test specification.
A copper process tube is provided for access to
the low-pressure side of the refrigeration system.

Note: The woodpecker clip holds the capillary tube
in thermal contact with the compressor discharge
tube. If the capillary tube is not clipped to the
discharge tube, a knocking noise may occur
during compressor operation.

Refer to the compressor replacement instructions
included with the replacement compressor.

Condenser

The condenser is located behind the grille panel at
the top of the refrigerator and is made of steel
tubing. The outlet of the condenser is connected
to a copper jumper tube that is connected to the
inlet of the condenser loop. In a normal home
environment, there is no need for routine
condenser cleaning. However , in environment s
that may be particularly dusty or greasy, the
condenser should be cleaned periodically for
efficient refrigeration operation. An ordinary
appliance brush should be all that is needed.
Functionally, the condenser does the same job as
previous models. Air is drawn through the
condenser by the condenser fan from the front left
and rear left of the machine compartment. Air
exits only from the right side of the machine
compartment.

Condenser Loop

The condenser loop, made of copper tubing, is

foamed in place behind the breaker frame and
across the mullion. It is not accessible for
replacement. The tubing is routed from the
machine compartment forward to the mullion,
down to the freezer compartment, around the front
perimeter of the freezer , and back into the
machine compartment. The outlet of the
condenser loop is connected to the dryer inlet.

– 33 –

Dryer

The dryer is positioned vertically in the center of the
machine compartment. A copper process tube,
connected to the inlet of the dryer, provides access
to the high-pressure side of the refrigeration system.
The capillary is connected to the outlet of the dryer .
Replacement of filter dryer requires additional
refrigerant when installed (0.5 oz).

Evaporator

The evaporator is made of copper and aluminum
and is located below the evaporator fan and behind
the evaporator cover at the back of the freezer
compartment. An accumulator is attached to the left
side of the evaporator. The accumulator eliminates
woodpecker knock from the sealed system.

To replace the evaporator

1. Recover the refrigerant.

2. Remove the freezer drawer (see procedure).

3. Remove the defrost overtemperature thermostat
and evaporator thermistor .

4. Remove the defrost heater (see procedure).

5. Disconnect the ground wire from the evaporator
and position all wiring to allow for evaporator
removal.

6. Remove the 2 screws that hold the evaporator to
the cabinet.

Caution:

• If desoldering the evaporator, HEAT SHIELD,
P/N WR49X10025, must be used to prevent
damage to freezer liner.

• Protect wiring from heat during
desoldering and resoldering.

• To prevent damage to the capillary tube, the
capillary tube must be desoldered first.

11. Desolder the capillary tube from the evaporator.

12. Desolder the suction line. Use a pair of pliers to
hold the evaporator .

Defrost Overtemperature Thermostat

Evaporator Thermistor

13. Remove the evaporator.

14. Using a file, score the capillary tube just above the
old solder and break the solder-covered section off.
This will help prevent the capillary tube from
becoming plugged when resoldering.

15. Position the new evaporator in the cabinet. Insert
the suction line and capillary tube into the
evaporator.

P0003343

– 34 –

16. Solder the suction line to the evaporator using
silfos.

Note: Mastic should be replaced on evaporator

discharge line after replacing the evaporator .

17. Solder the capillary tube to the evaporator
using silfos.

18. Install a replacement dryer.

19. Evacuate and recharge the system using
currently accepted procedures.

Auxiliary Line

A stainless steel hot gas loop is routed from the
machine compartment down the back of the unit
into the drain pan and back up to the machine
compartment. Hot refrigerant gas flows through
the gas loop to assist the evaporation of drain
water collected in the drain pan.

Refrigerant Charge

The refrigerant used in this model is type R134a.
Refer to the mini-manual or model tag for the
exact refrigerant charge quantity .

– 35 –

Diagnostic Mode

Enter the diagnostic mode by pressing both the freezer temperature pads (plus and minus) and the
refrigerator temperature pads (plus and minus) simultaneously. All 4 pads must be held for
approximately 3 seconds. Blinking “0’s” in both displays indicate the refrigerator has entered the test
mode.

Enter the appropriate display numbers as shown
below and press any pad other than the temperature
pads to activate that test mode.

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Note 1: Display order is: 1) Fresh Food 1, 2) Fresh Food 2, 3) Custom Cool, 4) Thermistor test
results are P = pass, 0 = fail, S = short to 5 VDC, B = bad amplifier (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 warm.

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– 36 –

Fresh Food Warm - Freezer Normal

Check control settings and temperatures.

Food at setting of 37 ˚F and 0 ˚F with no door

openings for 12 hours should be:

Fresh food 34 ˚F to 42 ˚F

Freezer -8 ˚F to +6 ˚F

Control settings OK

Control settings

require adjustment

Adjust settings and allow

24 hours to stabilize.

Basic refrigerator checks:

Door gasket seal OK?

Door switch - light turning off with door closed?

Yes

Is evaporator fan running?

Set temperature controls to 37 ˚F and 0 ˚F.

Unplug Refrigerator.

Reconnect power.

Does damper door open immediately after

reconnecting power?

Yes

Is the airflow within the fresh food normal?

YES

No

No

NO

No

Go to Damper Door Not Operating

Look for blockage at vents

or heavy frost on

evaporator cover.

Repair as

necessary.

Go to Evaporator Fan

Not Running flowchart.

flowchart.

Heavy frost

Blockage

Remove blockage

from vent area.

Go to Heavy Frost on Evaporator

flowchart.

Verify thermistors are within proper range

using the thermistor values chart.

Is the resistance within range?

YES

Check sealed system.

Does sealed system check OK?

Yes

Unit tests OK.

Run checks again.

Reset electronics by unplugging

refrigerator for 15 seconds.

Look for usage problem.

NO

No

Check wiring connections.

If wiring is OK, replace

thermistor.

Repair

sealed system.

– 37 –

Fresh Food Too Cold - Freezer Normal

Check control settings and temperatures.

Food at a setting of 37 ˚F and 0 ˚F with no

door openings for 12 hours should be:

Fresh food 34 ˚F to 42 ˚F

Freezer -8 ˚F to +6 ˚F

Control settings OK

Room temperature

must be above 55 ˚F

to avoid low ambient

condition.

NO

Room temperature

above 55 ˚F?

Controls require

adjustment

Advise consumer of

refrigeration installation

requirements.

Adjust setting and allow

24 hours to stabilize.

YES

Is the damper closed?

YES

Verify thermistors are

within proper range

using thermistor values

chart.

Is the resistance within

proper range?

YES

Unit tests OK.

Run checks again.

Reset electronics by

unplugging refrigerator for 15

seconds.

Look for usage problem.

NO

NO

Go to Damper Not

Operating flowchart.

Check wiring

connections. If

OK, replace

thermistor.

– 38 –

Check control settings and

temperatures.

Food at setting of 37 ˚F and 0 ˚F with no

door openings for 12 hours should be:

Fresh food 34 ˚F to 42 ˚F

Freezer -8 ˚F to +6 ˚F

Control settings OK

Fresh Food Warm - Freezer W arm

Control setting

require adjustment

Adjust setting and allow

24 hours to stabilize.

Basic refrigerator checks:

Door gasket seal OK?

Door switch - light turning off with door closed?

YES

Is the condenser fan running?

YES

Is the evaporator fan running?

YES

Is the compressor running?

YES

Is the airflow within the freezer normal? NO

NO

NO

NO

NO

Repair as

necessary.

Condenser Fan Not Running flowchart.

Evaporator Fan Not Running flowchart.

Compressor Not Running flowchart.

Look for blockage

at vents or heavy

frost on evaporator

cover.

Go to

Go to

Go to

Blockage

Remove blockage

from evaporator cover

vent area.

YES

Verify thermistors are within proper range using

thermistor values chart.

Is the resistance within range?

YES

Check sealed system.

Does system check OK?

YES

Unit tests OK.

Run checks again.

Reset electronics by unplugging refrigerator

for 15 seconds.

Look for usage problem.

NO

NO

Check wiring

connections.

IF OK, replace

thermistor.

Repair

sealed system.

– 39 –

Heavy frost

Go to Heavy Frost on
Evaporator flowchart.

Freezer Warm - Fresh Food Normal

Check control settings and temperatures.

Food at a setting of 37 ˚F and 0 ˚F with no

door openings for 12 hours should be:

Fresh food 34 ˚F to 42 ˚F.

Freezer -8 ˚F to +6 ˚F.

Control settings OK.

Control settings

require adjustment.

Adjust settings and allow

24 hours to stabilize.

Basic refrigerator checks:

Door gasket seal OK?

Door switch - light turning off with drawer closed?

YES

Is the evaporator fan running?

YES

Is the condenser fan running? NO

YES

Is the airflow within the

freezer normal?

YES

NO Blockage

NO

NO

Look for blockage at vents

or heavy frost on

evaporator cover.

Repair as

necessary.

Evaporator Fan Not Running flowchart.

Condenser Fan Not Running flowchart.

Heavy Frost

Go to

Go to

Remove blockage

from vent area.

Go to Heavy Frost on Evaporator

flowchart.

Verify thermistors are within proper

range using thermistor values chart.

Is the resistance within range?

YES

Check sealed system.

Does sealed system check OK?

YES

Unit tests OK.

Run checks again.

Reset electronics by unplugging

refrigerator for 15 seconds.

Look for usage problem.

NO

NO

Check wiring

connections.

If OK, replace

thermistor.

Repair

sealed system.

– 40 –

Unplug refrigerator.

Warm freezer thermistor to 70 ˚F.

Connect power and set controls to

37 ˚F and 0 ˚F.

Is the compressor running?

YES

Adjust setting and allow

24 hours to stabilize.

Compressor Not Running

Check for 120 VAC at

connector J7-9 orange wire to

NO

terminal J8 white wire.

Do you have 120 VAC?

YES

Direct-test the

compressor.

Did it start?

NO

NO

Replace main
control board.

Replace

compressor.

YES

Check wiring to

compressor, overload

and, relay.

– 41 –

Refrigerator Dead - No Sound, No Cooling

Are the interior lights on?

YES

Unplug J2

connector from

main control

board.

Check for 12 VDC

at control board

pins J2-3 to J2-8.

Voltage present?

YES

Short in fan motor circuit.

Go to Fan flowchart.

NO

NO

Check house supply voltage.

Check for 120 VAC at 3-pin

connector at the rear of the

Unplug J4 connector from

main control board.

Check for 12 VDC at

control board pins J4-2 to

Voltage present?

Unplug the temperature

control harness.

Does the refrigerator

start once the harness is

Is 120 VAC present?

YES

unit.

Is 120 VAC present?

YES

Repair wiring

connections at

3-pin connector.

J4-3.

YES

unplugged.

NO

NO

NO

NO

Replace main
control board.

Verify thermistors are

within proper range

using the thermistor

values chart.

Is the resistance

within range?

House wiring

Problem.

Repair or replace

power cord.

Note: Check all fan motor
circuits for shorts. If short

is detected, repair short or

Failure to replace shorted

component will damage

the new control board

YES

replace fan motor.

upon installation.

Check wiring

connections. If wiring

is OK, replace

thermistor.

YES

Replace temperature

control board.

YES

Replace main
control board.

– 42 –

Damper Door Does Not Operate

Replace main

control board.

Remove blockage or

replace damper.

Verify thermistors are

within proper range

using thermistor

values chart.

Is the resistance

within range?

NO

Check wiring

connections. If

OK, replace

thermistor.

YES

Push on damper door to check manual

Push damper door halfway closed.

Unplug refrigerator to reset main control board.

Set temperature controls to 37 ˚F and 0 ˚F.

YESYES

immediately after reconnecting

(You have 10 seconds to check.)

Unplug harness connector at damper.

Measure resistance between the

blue and red wires and between the

Do you measure approximately 420 ohms for

movement.

Is the damper door stuck?

NO

Reconnect power.

Does damper door move

power?

NO

white and blue wires.

both readings?

Replace damper.NO

YES

Look for wiring

problem between

main control board

and damper. If

wiring is OK, replace

damper.

YES

Unplug J3 connector from main

control board. Unplug the refrigerator

to reset, then reconnect power.

Are there 6 VDC between pins J4-3

(common) and each of the pins J3-1,

J3-2, J3-3, and J3-4?

(You have 10 seconds to check).

NO

Replace main
control board.

– 43 –

Always check door ajar,

customer usage -

numerous door

openings, etc.

Heavy Frost on Evaporator

Unplug refrigerator. Unplug blue

connector from main board. Measure

between red wire on connector and orange

(neutral) wire on main board J7, pin 9.

Are there approximately 37 ohms?

NO

Check wiring harness,

defrost heater, and

defrost overtemperature

thermostat.

YES

Verify thermistors are within

proper range using

thermistor values chart.

Is resistance within range?

YES

Replace main

board.

NO

Check wiring

connections. If

OK, replace

thermistor.

– 44 –

Always check fan for obstruction first.

Unplug refrigerator to reset

main control board.

Warm freezer thermistor to 70 ˚F.

Set temperature controls to 37 ˚F

and 0 ˚F. Reconnect power.

Evaporator Fan Not Running

At the evaporator fan connector, check for

13 VDC from the red to white wire and

8-13 VDC from the yellow to white wire.

Is the voltage correct for both?

YES

Replace

evaporator fan

motor.

Unplug J2 connector on the main control board.

Check for 13 VDC between pins J2-8 and J2-3

NO

and 8-13 VDC between pins J2-4 and J2-3.

Is the voltage correct for both?

YES

Repair wiring between main control

board and evaporator fan motor.

NO

Replace main
control board.

Note: When no voltage at

main control board, make

certain to check for

shorted fan motor (less

than 1K ohm between

white to red or white to

yellow). A shorted fan

motor will damage the

replacement main board.

– 45 –

Always check for obstruction first.

Unplug refrigerator to reset

main control board.

Warm freezer thermistor to

70 ˚F and set temperature

controls to 37 ˚ F and 0 ˚ F.

Reconnect power.

Condenser Fan Not Running

At the condenser fan connector,

check for 13 VDC from the red to

white wire and 11-13 VDC from the

pink to white wire.

Is the voltage correct for both?

YES

Replace the condenser

fan motor.

NO

Unplug J2 connector on the main control

board. Check for 13 VDC between pins

J2-3 and J2-8 and 11-13 VDC between

pins J2-3 and J2-5.

Is the voltage correct for both?

YES

Repair wiring between

main control board and

condenser fan.

NO

Replace main
control board.

Note: When no voltage at

main control board, make

certain to check for

shorted fan motor (less

than 1K ohm between

white to red or white to

yellow). A shorted fan
motor will damage the

replacement main board.

– 46 –

P ARTS LIST

– 47 –

– 48 –

– 49 –

– 50 –

– 51 –

View Description Part # Qty

1 PM MINI MANUAL 31-51357 1
1 USE & CARE MANUAL 49-60127 1
1 CUSTOM OPTIONS GUIDE 49-60136 1
1 18 DISH BUTTER ASM WR19X0035 1
216 BUCKET EGG WR32X1435 1
23 7 SENSOR TEMP WR55X10025 4
390 SCREW WR01X1826 4
42 0 DC FRESH FOOD FAN WR60X10051 1
434 SOCKET STRAIGHT LIGHT FZ WR02X10732 1
599 RING COMPRESSION FAN WR02X10509 2
608 SWITCH LIGHT FZ WR23X0427 1
610 MOTOR DC EVAP FAN WR60X10043 1
61 1 BRACKET COND F AN (MTG) WR02X10521 1
612 BRACKET ORIFICE FAN WR02X10653 1
614 BUMPER LID WH01X2722 4
61 5 GROMMET EVA P FAN WR02X10519 2
618 GROMMET COND FAN WR02X10520 2
626 POWER CORD WR23X0420 1
650 MOTOR DC COND FAN WR60X10053 1
65 1 BLADE COND FAN ASM WR60X10049 1
68 3 SCREW, FAN MOTO R WR01X1716 8
69 0 SCR 8-32 T HXW 3/8 S WZ5X158D 4
72 5 COMPRESSOR REPL ASM WR87X0471 1
729 CAPACITOR WR62X0080 1
733 RELAY PTCR WR07X10031 1
73 4 COVER RELAY SNAP (MEI) not available 1
735 OVERLOAD WR08X10026 1
736 CLIP COMP MTNG WR02X8583 4
737 GROMMET WR02X10099 4
740 DRYER BIFURCATED XH9 WR86X0096 1
741 STUD MTG COMPR WR01X1779 4
75 0 SCR 10-32 TR T 1/2 WR01X1786 4
75 2 FT WHEEL BKT WR02X8470 2
75 3 BRACKET EVAP F AN BTM WR02X10548 1
762 FOAM STRIP WR14X0313 2
790 FILTER CANISTER GWF 1
79 1 PLUG BYPASS FIL TER WR02X10577 1
79 2 FILTER MNT & TUBE ASM WR17X10707 1
800 V ALVE WATER WR57X10034 1
80 1 BRD ASM MAIN CONT WR55X10056 1
804 NUT SLEEVE 1/4 WR57X0057 1
806 WA TER LINE WR17X2107 1
820 ELECTRONIC IM-DOM WR30X10012 1
1326 CLAMP TUBE WR02X3736 2
1505 HOUSING DRAIN PAN WR17X11006 1
1508 FIXTURE LIGHTING WR02X11023 1
1511 BRACKET LIGHT SOCKET FZ WR74X10085 1
1513 FF THERMISTOR HOLDER WR02X10942 1
1515 PLATE FAN MOTOR MTG. WR74X10096 1
1517 FILL TUBE COVER WR74X10086 1
1520 ASM. REFRIGERATION P AN WR17X1 1033 1
1521 BRKT REFRIG PAN GUIDE not available 2
1531 FF AIR DIFFUSER WR71X10325 2
1532 CLOSURE ASM TOP DOOR RH WR02X10943 1
1533 FZ THERMISTOR CLIP WR02X10944 1
1537 HANDLE DOOR FF 36BM RH WR12X10476 1
1538 SWITCHPLA TE not available 1

– 52 –

1539 BRKT COND FAN MOTOR LG WR02X10945 1
1541 BAFFLE CONDENSER LH WR17X11034 1
1546 FILTER BRACKET WR02X10946 1
1548 EVAPORAT OR COVER 36" BM WR74X10097 1
1549 EVAPORA TOR F AN COVER WR74X10098 1
1550 BRACKET DAMPER MTG WR17X1 1009 1
1551 SCREW IM STRAP , P AN WR01X5645 12
1553 WATER COLLECTOR WR17X11010 1
1557 HOOD HINGE MOUNT 36 WR74X10081 1
1570 FF DOOR FOAMED ASM WR78X10496 1
1571 FZ DRAWER FOAMED ASM WR78X10497 1
1580 TOE KICK 36 BM WR74X10089 1
2363 6-32 X 3/8 PHIL S/S TYPE WR01X5684 2
2508 ACTUATOR ARM FF DOOR WR02X10948 1
2567 CHANNEL BASE ASM (RH) WR13X10200 1
2568 CHANNEL BASE ASM (LH) WR13X10201 1
2589 HOUSING MOTHER BOARD not available 1
2590 COVER MOTHER BOARD not available 1
2591 PLUG BUTTON #413 I/M WR02X10154 1
2843 SCREW CASE TRIM WR01X1903 12
3514 HOUSING COND FAN WR17X11011 1
3521 BHNG ARM NYLON FF DR CL WR02X10951 1
3522 BOLT SHOULDER FF DOOR WR01X10254 1
3533 PC BOARD MOUNTS WR02X10952 4
3542 SPRING FF DOOR CLOSURE WR01X10255 1
3546 CASE TRIM TOP 36" WR17X11012 1
3548 BASE SHAFT WR01X10256 2
3568 BLADE FAN MOTOR WR60X10050 1
3571 HINGE DOOR BOTTOM WR13X10202 1
3572 BUSHING HINGE BOTTOM WR02X10953 1
3574 BUSHING HINGE TOP WR02X10954 1
3576 TUBE WATER FILL not available 1
3577 GROMMET AND GASKET ASM WR02X10967 1
3599 CUP FILL IM WR29X10046 1
4543 PAN SUPPORT SNACK P AN WR02X10149 2
4544 PAN SUPPORT ASM VEG PAN WR02X10150 2
5000 EVAP COIL WR85X10007 1
5001 DEFROST HEATER 36BM WR51X10015 1
5059 SNACK PAN COVER WR32X10072 1
5062 TUBE - WATER V AL VE INLET WR02X10141 1
5064 VEG PAN COVER WR32X10073 2
5065 ENCAP SHELF ASSY WR32X10074 4
5074 LIGHT SHIELD FZ WR17X10347 1
5075 ICE BUCKET WR32X10075 1
5076 FZ BASKET LG WR21X10007 1
5086 VENT GUARD 36BM WR02X10142 1
5089 CASE TRIM SHORT RH WR17X11035 1
5108 DRAIN BAFFLE WR17X10349 1
51 17 DAMPER MOTORIZED WR09X10050 1
5149 DIVIDER ASM VEG. PAN S WR72X1001 1 1
5150 SHOWCASE LID ASM. WR32X10076 2
5166 WIRE RETAINER EV AP HEA TE WR01X10045 2
5180 ASM DAIRY COMP WR71X10142 2
5197 BAFFLE EVAP LH WR02X10145 1
5205 SUPPORT, SLIDE RH WR72X10012 1
5208 SEAL DAIRY ASM WR22X10007 1
5220 SEAL, FRONT SNACK PAN WR14X10009 2
5222 WASHER SHOWCASE PIVOT WR01X10046 2
5223 SEAL, RR SNACK PAN WR14X10011 2

– 53 –

5225 SEAL, FRT VEG PAN GLASS WR14X10012 2
5226 BUTTON GLIDE WR01X10047 4
5227 SUPPORT, SLIDE LH WR72X10013 1
5232 BUSHING, SHOWCASE PIVOT WR01X10048 2
5245 FZ SLIDE/SUPPORT ASM LH WR72X10084 1
5261 MULLION BLOCK KIT BTM.MT WR49X10015 1
5308 FZ SLIDE/SUPPORT ASSY RH WR72X10014 1
5359 SCREW, TRUSS HD 1/4-20 X WR01X10049 8
5391 BIN, FF DOOR W/WINDOW WR71X10138 4
5406 BIN, DOOR FF DEEP RH WR71X10139 1
5407 BIN, DOOR FF DEEP LH WR71X10140 1
5412 VEG PAN ASM WR32X10077 2
5413 SNACK PAN ASM WR32X10078 2
5421 SCREW, #8 18 X 7/8 WR01X10050 2
5518 SEAL REAR VEG PAN GLASS WR14X10014 2
5620 WHEEL ASM REAR WR02X8377 2
7271 10-24*7/8 PHIL P-HD TAP WR01X10051 9
7288 SCREW GRILLE MTG. WR01X5686 2
7317 1/4 CLAMP NYLON WR17X3046 4
7327 THERMOSTA T WR50X10003 2
7500 EVAP . THERMODISC WR50X10030 1
7503 BRACKET GRILLE LH WR02X10956 1
7504 BRACKET GRILLE RH WR02X10957 1
7506 BASKET UPPER FRZ WR21X10043 1
7507 LAMP 40W 40A15 4
7508 SUPPORT BASKET UPPER FZ WR72X10080 2
7509 SLIDE LINER UPPER FZ WR72X10081 2
7510 SLIDE BASKET UPPER FZ WR72X10082 2
7515 HINGE UPPER FF CASE WR13X10203 1
7516 LIGHT SHIELD FF WR17X1 1014 1
7518 WATER VAL VE BRKT WR02X10958 1
7520 PIN BTM. LOWER HINGE WR01X10257 1
7522 EYEBROW RH WR02X10959 1
7523 EDGE TRIM FZ REAR DUCT WR38X10247 1
7524 SHELF TRACK CENTER WR17X11027 1
7525 CTRL. PANEL TEMP. CTRL. WR17X11036 1
7528 FREEZER SLIDE SHIM WR72X10085 2
7536 HOUSING CONTROL WR74X10082 1
7538 TRIM LIGHTING FF WR17X11015 1
7541 HINGE ASM GRILLE LEFT WR13X10204 1
7542 HINGE ASM GRILLE RIGHT WR13X10205 1
7544 SOCKET LAMP FF WR02X1 1024 4
7545 DRAIN PAN WR17X11016 1
7551 TRIM CASE LEFT 36BM WR17X11017 1
7552 TRIM CASE RIGHT 36BM WR17X11018 1
7553 TRIM DOOR SIDE FF 36BM WR17X1 1019 1
7554 TRIM DOOR TOP FF 36BM WR17X11020 1
7555 TRIM DOOR BTM FF 36BM WR17X1 1021 1
7556 GRILLE PANEL ASM. not available 1
7557 TRIM DRWR SIDE FZ RH WR17X11022 1
7558 TRIM DRWR SIDE FZ LH WR17X1 1023 1
7559 TRIM DRAWER HANDLE FZ WR17X1 1024 1
7560 TRIM DRAWER BTM FZ WR17X11025 1
7561 HANDLE DRAWER FZ 36BM WR12X10488 1
7562 EVAPORA TOR TROUGH WR17X11098 1
7566 GASKET FF DOOR BM WR24X10083 1
7567 GASKET FZ DOOR BM WR24X10084 1
7569 BOARD ASM TEMP CONTROL not available 1
7570 SABBATH SWITCH WR23X10220 1

– 54 –

7572 CAP/SUCTION TUBE ASM WR86X10016 1
7573 STUD SPRING FF DOOR WR01X10258 1
7579 HINGE TOP RH FF DOOR ASM WR13X10208 1
7582 CONDENSER MONOGRAM BM WR84X10030 2
7584 GASKET FF LIGHT TRIM WR38X10255 2
7589 HINGE BTM RH FF CASE ASM WR13X10209 1
7752 SCREW 12-24TT OHT .900 WR01X1845 12
7766 SPRING WHEEL #LE022C4 WR02X8799 2
7768 LEVELING LEG WR02X10479 2
7769 AXLE REAR WR01X1733 2
7770 STOP DOOR WR13X0637 1
7871 COMPRESSION NUT 1/4 WR57X10016 1
7873 BRASS FERRULE WR57X10017 1
7951 TWIST SUPPORT WR02X10151 4
8086 HARNESS CAPACITOR WR23X0474 1
8141 WINE RACK WR17X4141 1
8142 ROCKER SWITCH 200-WATT WR23X0475 1
8292 SLIDE FULL EXT10 WR72X0269 4
8293 SLIDE FULL EXT12 WR72X0270 4
8350 TRACK SHELF FF WR17X4140 2
8536 DRAIN TRAP AUX. COND. WR17X10675 1
8613 #8-18AB X 1/2 PHILS TRUS WR01X10052 19
8665 TRIM SCREW WR01X2130 24
8738 #8-18 TYPE AB X 3/8 BLK WR01X10053 2
9500 SEAL FRONT SHOWCASE LID WR14X10040 2

– 55 –

Notes

– 56 –

W ARRANTY

YOUR MONOGRAM REFRIGERATOR WARRANTY
Staple sales slip or cancelled check here. Proof of original purchase
date is needed to obtain service under warranty.

WHAT IS
COVERED

From the Date
of the Original
Purchase

FULL TWO-YEAR WARRANTY

For two years from date of original purchase, we will provide, free of charge, parts and service labor in
your home to repair or replace any part of the refrigerator that fails because of a manufacturing defect.

FULL FIVE-YEAR WARRANTY

For five years from date of original purchase, we will provide, free of charge, parts and service labor
in your home to repair or replace any part of the sealed refrigerating system (the compressor, condenser,
evaporator and all connecting tubing) that fails because of a manufacturing defect.

LIMITED ADDITIONAL SEVEN-YEAR WARRANTY ON THE SEALED SYSTEM

For the sixth through twelfth year from the date of the original purchase, we will provide, free of
charge, replacement parts for any part of the sealed refrigerating system (the compressor, condenser,
evaporator and all connecting tubing) that fails because of a manufacturing defect. You pay for
the service trip to your home and for service labor charges.

LIMITED LIFETIME WARRANTY ON ACCURIDE® SLIDES

From the date of the original purchase we will provide, free of charge, replacement parts for
any part of the Accuride Slides that fails because of a manufacturing defect. You pay for the service
trip to your home and for service labor charges.

This warranty is extended to the original purchaser and any succeeding owner for products
purchased for ordinary home use in the 48 mainland states, Hawaii and Washington, D.C.
In Alaska the warranty is the same except that it is LIMITED because you must pay to ship
the product to the service shop or for the service technician’s travel costs to your home.

All warranty service will be provided by our Factory Service Centers or by our authorized Customer
Care® servicers during normal working hours.

Should your appliance need service, during warranty period or beyond, in the U.S.A.
call 800.444.1845. In Canada: 888.880.3030.

Some states do not allow the exclusion or limitation of incidental or consequential damages, so the
above limitation or exclusion 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. To know what your legal rights are in
your state, consult your local or state consumer affairs office or your state’s Attorney General.

Warrantor: General Electric Company, Louisville, KY 40225

WHAT IS NOT
COVERED

• Service trips to your home to teach you how
to use the product.

• Replacement of house fuses or resetting of
circuit breakers.

• Damage to the product caused by accident,
fire, floods or acts of God.

• Failure of the product if it is used for
other than its intended purpose or used
commercially.

• Improper installation.
If you have an installation problem, contact

your dealer or installer. You are responsible for
providing adequate electrical, plumbing and
other connecting facilities.

• Loss of food due to spoilage.

• Incidental or consequential damage caused by

possible defects with this appliance.

– 57 –