Sub-Zero 700-3 BASE Technical & Service Manual

SUB-ZERO FREEZER COMPANY INC. 2005 ALL RIGHTS RESERVED JOB AID #3758424 (Revision B - December, 2005)

Integrated

(700-

3

BASE)

Series

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SSeerrvviiccee MMaannuuaall

General Information

Integrated

(700-3BASE)

Series

1-1

#3758424 - Revision B - December, 2005

SECTION 1

GENERAL

INFORMATION

General Information

Integrated

(700-3BASE)

Series

1-2

#3758424 - Revision B - December, 2005

TECHNICAL ASSISTANCE

If you should have any questions regarding a 700­3 Base Unit and/or this manual, please contact:

Sub-Zero Freezer Company, Inc.

ATTN: Service Department

P.O. Box 44988

Madison, WI 53744 - 4988

Customer Service & Parts / Warranty Claims

Phone #: (800) 222 - 7820

Technical Assistance

Phone #: (800) 919 - 8324

Customer Service & Technical Assistance

Facsimile #: (608) 441 - 5887

Parts / Warranty Claims

Facsimile #: (608) 441 - 5886

Service Department E-Mail Address:

[e-mail]

Office Hours:

7:00 AM to 7:00 PM Central Time

Monday through Friday

This manual is designed to be used by Authorized Service Personnel only. Sub-Zero Freezer Co., Inc.
assumes no responsibility for any repairs made on Sub-Zero refrigeration units by anyone other than
Authorized Service Technicians.

IMPORTANT SAFETY INFORMATION

Below are the Product Safety Labels used in this
manual. The "Signal Words" used are WARNING
or CAUTION.

When reviewing this manual, please note these
different Product Safety Labels placed at the
beginning of certain sections of this manual. You
must follow the instructions given in the boxes
below the Product Safety Labels in order to avoid
personal injury and/or product damage.

The sample Product Safety Labels below illustrate
the precautions that should be taken when the sig­nal word is observed.

INTRODUCTION

This 700-3 Series Base Unit Technical Service Manual, Part #3758424, has been compiled to provide the
most recent information on safety, installation, set-up, design, operation, features, troubleshooting, wiring
diagrams, and repair procedures of the 700-3 Base units. This information will enable the service techni­cian to troubleshoot and diagnose malfunctions, perform necessary repairs, and return a 700-3 Base unit
to proper operational status.

The service technician should read the complete instructions contained in this training/service manual
before initiating any repairs on a 700-3 Base unit.

INDICATES THAT HAZARDOUS OR UNSAFE PRAC­TICES COULD RESULT IN SEVERE PERSONAL
INJURY OR DEATH

Indicates that hazardous or unsafe practices could
result in minor personal injury or product and/or
property damage

In addition, please pay attention to the signal word
“NOTE”, which highlights information that is espe-
cially important for the topic being covered.

The information and images contained in this manual are the copyright property of Sub-Zero Freezer Company, Inc.

Neither this manual nor any information or images contained herein may be copied or used in whole or in part with-

out the express written consent of Sub-Zero Freezer Company, Inc. © all rights reserved.

General Information

Integrated

(700-3BASE)

Series

1-3

#3758424 - Revision B - December, 2005

Section 1 - General Information 1-1

Introduction ....................................................................... 1-2

Important Safety Information ............................................ 1-2

Technical Assistance ........................................................ 1-2

Table of Contents .............................................................. 1-3

Warranty Information ........................................................ 1-5

Model Description ............................................................. 1-6

Section 2 - Installation Information 2-1

Installation Considerations ............................................... 2-2

Unit leveling .................................................................. 2-2

Drawer Adjustment ....................................................... 2-3

Dual Unit Installation ..................................................... 2-3

Section 3 - Electronic Control System Information 3-1

Electronic Control Terminology &

Component Descriptions .................................................. 3-2

Electronic Control System Overview ............................... 3-3

Control Board Layout & Summary Table ....................... 3-4

Control Panel Layout ....................................................... 3-5

Basic Electronic Control Input Operations ...................... 3-6

Unit ON/OFF ................................................................ 3-6

Adjusting Set-Point (Temp. Adjustment) ...................... 3-6

Icemaker System ON/OFF ............................................ 3-7

Door Ajar Alarm ON/OFF ............................................ 3-7

Unique Electronic Control Input Operations .................... 3-8

Temperature Units Selection Mode ............................ 3-8

Sabbath Mode ............................................................. 3-8

Showroom Mode ......................................................... 3-9

Manual Freezer Evaporator Defrost ............................ 3-9

Functions of Electronic Control System ......................... 3-10

Display Zone Temperatures ........................................ 3-10

Supply Power to Lighting System .............................. 3-10

Regulate Freezer Zone Temperature (BC/BF) ............ 3-11

Regulate Refrigerator Zone Temperature (BC) ........... 3-12

Regulate Refrigerator Zone Temperature (BR) ........... 3-13

“Adaptive Defrost” (BC/BF) ......................................... 3-14

Fan-Assisted Off-Cycle Defrost“ (BR) ......................... 3-15

Monitor Compressor Run - Display SERVICE ............ 3-16

Monitor Ice Maker System - Display ICE/SERVICE .... 3-17

Possible Error Indicators ............................................... 3-18

Troubleshooting Input Operations ................................... 3-19

Diagnostic Mode ........................................................ 3-19

Thermistor Location Code Tables .......................... 3-19

Diagnostic Mode Indicators ..................................... 3-20

Error Code Table ..................................................... 3-20

Manual Component Activation Mode .......................... 3-21

Temperature Log Recall Mode .................................... 3-22

Compartment Temperature History Only ................. 3-22

Compartment & Evaporator Temperature History .... 3-23

Temperature Log Event Indicators ........................... 3-24

Temperature Log Index Chart .................................. 3-25

Service Input Operations ................................................. 3-26

Model Configuration Mode .......................................... 3-26

Model Code Table ....................................................... 3-26

Manual Entry Model Configuration Mode .................... 3-27

Section 4 - Sealed System Information 4-1

HFC-134a Refrigerant Service Information ...................... 4-2

General Rules for Working with 134a Refrigerant ........ 4-2

Sealed System Repair Procedures .............................. 4-3

Sealed System Operation ................................................ 4-4

Sealed System Refrigerant Flow Diagrams ..................... 4-6

Section 5 - Air Flow & Fan Blade Spacing 5-1

Model 700BCI-3 ............................................................... 5-2

Model 700BR-3 ................................................................ 5-2

Model 700BFI-3 ............................................................... 5-3

Section 6 - Icemaker Information 6-1

Modular Icemaker ........................................................... 6-2

Modular Icemaker Operation ...................................... 6-2

Additional Icemaker Operation Notes ......................... 6-3

What Happens During Ejector Blade Rotation ............ 6-3

Modular Icemaker Test Procedures ................................ 6-4

Voltage Tests ................................................................ 6-4

Continuity Tests & Thermostat Inspection ................... 6-4

Water Fill Adjustment ...................................................... 6-5

Icemaker Disassembly .................................................... 6-5

Module/Motor Assembly ............................................. 6-5

Mold/Heater Assembly ............................................... 6-5

Ejector Blades and/or Ice Stripper .............................. 6-5

Icemaker Thermostat ................................................. 6-5

TABLE OF CONTENTS

Page #

Page #

General Information

Integrated

(700-3BASE)

Series

1-4

#3758424 - Revision B - December, 2005

Section 7 - Component Access and Removal 7-1

Section Table of Contents .............................................. 7-2

WARNINGS & CAUTIONS .............................................. 7-2

Exterior Cosmetic and Mechanical Components ........ 7-3

Kickplate/Grille (All Base Units) ..................................... 7-3

Drawer Assembly (All Base Units) ................................. 7-3

Top Drawer Assembly................................................ 7-3

Bottom Drawer Assembly........................................... 7-3

Side Trim Molding Strip (All Base Units) ....................... 7-4

Drawer Gasket (All Base Units) .................................. 7-4

Interior Cosmetic, Mechanical Components................ 7-5

Control Panel Assembly (All Base Units) ...................... 7-5

Display Wire Harness (All Base Units) ......................... 7-5

Lighting Bulb & Socket (All Base Units) ....................... 7-5

Mullion Divider (700BC/I-3 ) ......................................... 7-6

Wire Tray (700BR-3, 700BF/I-3) ................................... 7-6

Drawer Closer Assembly (All Base Units) .................... 7-6

Drawer Slide Assembly (All Base Units) ....................... 7-7

Refrigerator Fan Baffle & Shroud (700BC/I-3) .............. 7-7

Refrigerator Light Switch (700BC/I-3) ........................... 7-7

Refrigerator Fan Baffle & Cold Plate(700BR-3) ............ 7-8

Refrigerator Fan Motor (700BC/I-3, 700BR-3)) ............ 7-8

Refrigerator Compartment Thermistor (700BC/I-3) ....... 7-8

Refrigerator Compartment Thermistor (700BR-3) ........ 7-9

Refrigerator Light Switch (700BR-3) ............................. 7-9

Refrigerator Evaporator Thermistor (700BR-3) ............ 7-9

Icemaker Assembly (700BCI-3, 700BFI-3) ................ 7-10

Sump Cover Assembly (700BCI-3, 700BFI-3) ........... 7-10

Lower Air Duct (700BC/I-3) ....................................... 7-11

Air Baffle Control Assembly (700BC/I-3) ..................... 7-11

Freezer Compartment Thermistor (700BC/I-3) .......... 7-11

Freezer Light Switch (700BC/I-3) ............................... 7-11

Freezer Light Switch / Icemaker Switch (700BF/I-3) .. 7-12

Freezer Compartment Thermistor (700BF/I-3) ........... 7-12

Freezer Evap. Thermistor (700BC/I-3,700BF/I-3) ....... 7-13

Defrost Terminator (700BC/I-3, 700BF/I-3) ................. 7-13

Defrost Heater (700BC/I-3, 700BF/I-3) ....................... 7-13

Control Board Assembly (700BC/I-3, 700BF/I-3) ....... 7-14

Evaporator Fan Assembly (700BC/I-3, 700BF/I-3) ..... 7-14

Compressor Area Mechanical Components .............. 7-15

Main Control Board (700BR-3) .................................. 7-15

Icemaker Water Valve Assy

(700BCI-3, 700BFI-3, Prior to Serial #2421189) ......... 7-16

Icemaker Water Valve Assy

(700BCI-3, 700BFI-3, Starting w/Serial #2421189) ..... 7-17

Condenser Fan Assembly (All Base Units) ................. 7-18

Drain Tube Heater (700BC/I-3, 700BF/I-3) ................. 7-19

Sealed System Components ....................................... 7-20

High-Side Filter-Drier (All Base Units) ........................ 7-20

Compressor (All Base Units) ...................................... 7-21

Condenser (All Base Units) ........................................ 7-22

Evap./Heat Exchanger Assy (700BC/I-3, 700BF/I-3) .. 7-23

Evaporator (700BR-3) ................................................. 7-24

Page #

Page #

Section 8 - Troubleshooting Guides 8-1

Troubleshooting Guides .................................................... 8-2

How to Use the Error Code Troubleshooting Guide .......... 8-2

Error Code Table ............................................................ 8-2

Error Code Troubleshooting Guide ................................... 8-3

How to Use the General Troubleshooting Guide .............. 8-6

Temperature Problem Instructions ................................ 8-6

Thermistor Location Code Tables ................................ 8-6

General Troubleshooting Table of Contents ...................... 8-7

General Troubleshooting Guide ......................................... 8-8

Sealed System Troubleshooting / Diagnostic Tables .... 8-16

Normal Operating Pressures Table ............................. 8-16

Pressure Indications Table .......................................... 8-16

Temperature/Pressure Table ....................................... 8-17

Membrane Switch / Ribbon Cable Test .......................... 8-18

Section 9 - Technical Data Tables 9-1

Model 700BC/I-3 .............................................................. 9-2

Model 700BR-3 ................................................................ 9-3

Model 700BF/I-3 .............................................................. 9-4

Section 10 - W

iring Diagrams 10-1

700BC/I-3 Wiring Diagram (PTS #2300444) .................. 10-2

700BC/I-3 Wiring Schematic (PTS #2300444) ............ 10-3

700BC/I-3 Wiring Diagram (SWS #2300444) ................. 10-4

700BC/I-3 Wiring Schematic (SWS #2300444) .......... 10-5

700BR-3 Wiring Diagram ................................................ 10-6

700BR-3 Wiring Schematic......................................... 10-7

700BF/I-3 Wiring Diagram .............................................. 10-8

700BF/I-3 Wiring Schematic........................................ 10-9

General Information

Integrated

(700-3BASE)

Series

1-5

#3758424 - Revision B - December, 2005

700BCI 2 0000000

9.0 8.1 R134a

Figure 1-1. Serial Tag Layout

(The serial number tag is located on the left side wall of the upper drawer compartment.)

Jan 2004

Model Number

Serial Number

Manufacture Date

Refrigerant Charge

To ta l Amps Refrigerant Type

REFRIGERATOR FREEZER TOTAL AMPS REFRIGERANT

WARRANTY INFORMATION

This page summarizes the 2, 5 & 12 Year Warranty
supplied with every unit, as well as the two special war­ranties: The Non-Residential Warranty which applies to
units installed in non-residential applications, and the
Display/Model Home Warranty which applies to distribu­tor or dealer’s display units and units in model homes,
sold three years after date of manufacture. The last
entries on this page are details and notes about the
warranties.

TWO, FIVE & TWELVE YEAR Warranty Summary

• Two year TOTAL PRODUCT warranty, *parts and
labor.

• Five Year SEALED SYSTEM warranty, **parts and
labor.

• Sixth through Twelfth year LIMITED SEALED SYS­TEM warranty, sealed system **parts only.

ONE & FIVE YEAR Non-Residential Warranty
Summary (Example: Office, Yacht, etc.)

• One Year TOTAL PRODUCT warranty, *parts and
labor.

• Five year LIMITED SEALED SYSTEM warranty,
sealed system **parts only.

ONE & FIVE YEAR Display/Model Home Warranty
Summary (Display units sold three years after date
of manufacture)

• One Year TOTAL PRODUCT warranty, *parts and
labor.

• Five year LIMITED SEALED SYSTEM warranty,
sealed system **parts only.

Warranty Details:

• * Total Product Parts includes, but is not limited to the
following:

Electronic Control System Components, Fan & Light
Switches, Fan Motors & Blades, Defrost & Drain
Heaters, Defrost Terminators, Drain Pans, Drain Tubes,
Wiring, Light sockets & bulbs, Icemakers, Water
Valves, Door hinges, Door closers & Cams,
Compressor Electricals, etc. . .

• ** Sealed System Parts include the following:

Compressors, Condensers, Evaporators, Filter-Driers,
Heat-exchangers, All Tubing That Carries the Freon.

NOTE: Condenser Fan Motors, Freon, Solder and
compressor electricals are NOT

considered sealed

system parts.

Warranty Notes:

• All warranties begin at the time of the unit's initial
installation.

• All Warranty and Service information collected by Sub­Zero is arranged and stored under the unit serial num­ber. This information is now also stored under the cus­tomer's last name.

NOTE: Sub-Zero still requests that you have the
model and serial number available whenever contact­ing the factory or parts distributor.

• The serial number tag is located on the left side wall of
the upper drawer compartment. (See Figures 1-1, for

serial tag layout)

General Information

Integrated

(700-3BASE)

Series

1-6

#3758424 - Revision B - December, 2005

MODEL DESCRIPTIONS

This page briefly describes the Models 700BC-3, 700BCI-3, 700BF-3, 700BFI-3 and 700BR-3.

Model 700BC-3 (Figure 1-2)

700 Series, Base Combination, 3rd Design Build

(Combination Refrigerator / Freezer with Two Temperature
Zones - Upper Refrigerator over Freezer)

(Overall Dimensions = 34” H x 27” W x 24” D)

Model 700BCI-3 (Figure 1-7)

700 Series, Base Combination, Icemaker Incl., 3rd

Design Build

(Combination Refrigerator / Freezer with Two Temperature
Zones - Upper Refrigerator over Freezer)

(Overall Dimensions = 34” H x 27” W x 24” D)

Model 700BR-3 (Figure 1-3)

700 Series, Base Refrigerator, 3rd Design Build

(Refrigerator with One Temperature Zone)

(Overall Dimensions = 34” H x 27” W x 24” D)

Model 700BF-3 (Figure 1-4)

700 Series, Base Freezer, 3rd Design Build

(Freezer with One Temperature Zone)

(Overall Dimensions = 34” H x 27” W x 24” D)

Model 700BFI-3 (Figure 1-3)

700 Series, Base Freezer, Icemaker Incl., 3rd Design

Build

(Freezer with One Temperature Zone)

(Overall Dimensions = 34” H x 27” W x 24” D)

Figure 1-2. Model 700BC-3 & 700BCI-3

Upper
Refrigerator
Zone

Lower
Freezer
Zone

Figure 1-3. Model 700BR-3

Two Drawer
All Refrigerator
(One Zone)

Figure 1-4. Model 700BF-3 & 700BFI-3

Two Drawer
All Freezer
(One Zone)

Installation Information

Integrated

(700-3BASE)

Series

2-1

#3758424 - Revision B - December, 2005

SECTION 2

INSTALLATION

INFORMATION

Installation Information

Integrated

(700-3BASE)

Series

2-2

#3758424 - Revision B - December, 2005

UNIT COULD TIP FORWARD UNDER CERTAIN LOAD CONDITIONS. FAILURE TO INSTALL ANTI-TIP COM­PONENTS AND EXTEND LEVELERS TO THE FLOOR ACCORDING TO INSTALLATION MANUAL COULD
RESULT IN SERIOUS PERSONAL INJURY OR DEATH.

INSTALLATION CONSIDERATIONS

This section covers some of the more common installation issues seen by a service technician. An improper instal­lation, though not a valid service issue, has the potential to lead to a customer placing a call for service. Installation
related customer complaints could include, but are not limited to: Unit leveling, unit movement, door misalignment,
drawers not sealing, internal frost or condensation, warm compartment temperatures, exterior condensation, etc.. .

NOTE: If additional installation information is needed, refer to the complete Installation Manual and/or installation
video, or contact the Sub-Zero Technical Assistance Department.

Unit Leveling

NOTE: The kickplate/grille must be removed before
leveling (See Figure 2-1).
If unit has been anchored to cabinets, side molding
strips must be removed and anchor screws extracted
from unit to cabinet brackets before leveling (See
Figure 2-2).

Figure 2-2. Side Molding & Bracket

Figure 2-1. Kickplate/Grille Removal

Figure 2-3. Adjusting Front Levelers

To level unit, turn front leveling legs counterclockwise to
raise front or clockwise to lower it. To assist in turning
front leveling legs, use standard straight-blade screw­driver, placing it in foot of front leg, then rotate leveler
foot (See Figure 2-3).

Kickplate / Grille

Installation Information

Integrated

(700-3BASE)

Series

2-3

#3758424 - Revision B - December, 2005

Figure 2-4. Adjusting Rear Levelers

Rear levelers are adjusted at front of base by turning
Phillips head adjusting rod, which engages rear leveler
assembly. Turn rod clockwise to raise rear or counter­clockwise to lower it (See Figure 2-4).

NOTE: Rear leveling legs will only move 1/16” for
every 18 revolutions of Phillips head adjusting rod.

Do not over torque. Use lowest torque setting on any
power screwdriver. Do not turn rear leveling legs by
hand, doing so will damage the assembly.

Door and Drawer Adjustment

Doors and drawers on 700-3 Series units are non­adjustable. Instead, door and/or drawer panels must be
adjusted if there are alignment problems. Refer to
Installation Manual and/or installation video for panel
installation and adjustment.

NOTE: Unit must be level before attempting to adjust
door and drawer panels.

Dual Unit Installations

• If two Base units are installed side by side and are
2” or less apart, use part #BBDUAL.

• If a Tall unit is installed next to a Base unit and they
are 2” or less apart, use part #BBDUAL.

NOTE: Complete installation instructions are supplied
with #BBDUAL and #TTDUAL packages.

If two or more units are placed side by side and are
2” or less apart, a dual unit heater package must be
applied to the left side of the right hand unit. Failure
to install the dual unit heater package could result
in exterior condensation between the units.

Figure 2-5. Dual Unit Heater Installation

Apply heater
to left side
of right hand
unit

Installation Information

Integrated

(700-3BASE)

Series

2-4

#3758424 - Revision B - December, 2005

Electronic Control System

Integrated

(700-3BASE)

Series

3-1

#3758424 - Revision B - December, 2005

SECTION 3

ELECTRONIC CONTROL

SYSTEM INFORMATION

Electronic Control System

Integrated

(700-3BASE)

Series

3-2

#3758424 - Revision B - December, 2005

ELECTRONIC CONTROL TERMINOLOGY & COMPONENT DESCRIPTIONS

All 700-3 Series units utilize an electronic control system which monitors, regulates, controls and displays a variety
of functions and operations in the appliance.

The table below defines some of the basic electronic control system terminology.

Term/Component Definition / Description

Main Control Board ..……....…… The printed-circuit board (PC Board) which contains a microprocessor, relays, triacs and

electrical connections that monitor and control all functions of the appliance.

Microprocessor ……….…....…... An electrical component on the control board which receives electrical signals from

other components, processes the information, then sends electrical signals to relays and
triacs on the board to open or close, switching components in the appliance ON or OFF.

Relay …………………….....……. An electrical component on the control board which switches other components in the

appliance ON or OFF when instructed to do so by the microprocessor.

Triac …………………….......…… Similar in function to the relay, the triac is a three terminal semiconductor for controlling

current in either direction.

Control Panel Assembly ….....… (Also referred to as the Control Keypad Interface), is that part of the electronic control

system where all input operations are performed.

Membrane Switch ……….……... Part of the control panel assembly, which consists of the function keys.

Keys (Function Keys) ……......... The “buttons” on the Membrane Switch used for input operations: “POWER”, “ALARM”,

“ICE MAKER”, “WARMER” and “COLDER”

LCD (Liquid Crystal Display) ..... A semi-liquid substance sandwiched between glass in the display of the control panel

assembly. The molecules of this semi-liquid substance have no specific orientation.
However, when electricity is applied to them, they react predictably, aligning and
straightening in such a way as to control light passage.

Indicators .....……..………….…... The words, numbers and icons that appear on the display of the control panel assembly

through the use of LCD’s.

Error Codes .………...…………... The code numbers that may appear on the display of the control panel assembly when

accessing Error Code History. Error Codes are logged if the unit experienced specific
problems related to electrical signals supplied by electrical components.

Temperature Units of Measure.... Temperature observed on the display of the control panel assembly may be in

Fahrenheit units of measure (°F) or Celsius units of measure (°C). A series of key
strokes allows the temperature units of measure to be switched to display as either °F
or °C.

Set-Point ……………...……….... The desired zone temperature, established by pressing the COLDER or WARMER

keys.

High Offset (Cut-in) ……...…...... As the zone air temperature cycles up and down, the high offset is the maximum zone

temperature that the electronic control system will allow before calling for cooling.

Low Offset (Cut-out)………........ As the zone air temperature cycles up and down, the low offset is the minimum zone air

temperature that the electronic control system will allow before interrupting cooling.

Thermistor ……………..………. (Also Referred to as a Temperature Sensor), is a resistor with which resistance changes

as the temperature around it changes. For electronic control system purposes, the
microprocessor measures the resistance, then displays it as a temperature reading.

Variable Speed Compressor …... A compressor that runs at varying speeds depending on the temperature detected in the

corresponding zone(s) of the appliance.

Electronic Control System

Integrated

(700-3BASE)

Series

3-3

#3758424 - Revision B - December, 2005

Figure 3-1. 700BCI-3 Wireing Schematic

ELECTRONIC CONTROL SYSTEM OVERVIEW

This page contains the wiring schematic of the model 700BCI-3. Input operations for the electronic control system
are performed at the control panel (located inside the upper drawer), with monitoring, regulating and controlling func­tions taking place at the main control board. Temperatures and possible problems with the unit are shown in the
control panel display. The entire electronic control system is described in greater detail on the following pages.

NOTE: For more detailed electrical diagrams refer to the wiring diagram and schematic supplied with the unit.

LOW VOLTAGE SCHEMATIC

REF AIR DUCT

DISPLAY

BAFFLE

MEMBRANE KEYPAD

DISPLAY BOARD

THERMISTOR LOWER

DRAWER/FREEZER

PIN 1

PIN 1

THERMISTOR
EVAPORATOR

J2

J3

YELLOW W/WHITE
YELLOW W/BLACK STRIPE

YELLOW W/RED STRIPE

ORANGE W/RED STRIPE

BLUE W/RED STRIPE

BLUE W/BLACK STRIPE

BLUE W/BLACK STRIPE

BLUE W/YELLOW STRIPE

BLUE W/YELLOW STRIPE

RED
WHITE
BLACK

BLUE

ORANGE

YELLOW

J6

J5

J2

PIN 1

MAIN BOARD

PIN 1

J4

PIN 1

PIN 1

P4

P3

P1

P2

PIN 1

J3

HIGH VOLTAGE SCHEMATIC

TAN

ORANGE

GRAY W/WHITE STRIPE

J2

PIN 1

MAIN BOARD

ORANGE W/BLACK STRIPE

PIN 1

J6

J4

PIN 1

PIN 1

J5

P4

P3

P1

P2

PIN 1

THERMISTOR UPPER

DRAWER/REFRIGERATOR

115 VOLTS
60 CYCLES

L1

WHITE

BLACK

BLUE

J3

YELLOW

PINK

NEUTRAL

WHITE

GRAY

PURPLE

ORANGE

REF LIGHT

SWITCH

RED

BLUE

FRZ LIGHT

SWITCH

OVERLOAD

PROTECTOR

CONDENSER FAN

GRAY W/WHITE STRIPE

GRAY W/WHITE STRIPE

DEFROST
TERMINATOR

REF (TOP)

DRAWER LIGHT

M

REF FAN

MOTOR

M

FRZ (BOTTOM)

DRAWER LIGHT

COMPRESSOR

M

FRZ FAN MOTOR

M

FILL TUBE HEATER

RUNNING

CAPACITOR

COMPRESSOR
STARTING
RELAY

DEFROST HEATER

25 - 29 OHMS

DRAIN HEATER
1700 - 2100 OHMS

2800 - 3500 OHMS

WHITE

(WHEN
USED)

ORANGE W/BLACK STRIPE

ORANGE

TAN

ICEMAKER

SWITCH

THERMAL

FUSE

ICEMAKER
(OPTIONAL)

TAN

ICEMAKER

VALVE

3757971 REV A

Electronic Control System

Integrated

(700-3BASE)

Series

3-4

#3758424 - Revision B - December, 2005

Figure 3-2. Main Control Board Layout

Figure 3-3. Main Control Board Summary Table

MAIN CONTROL BOARD LAYOUT AND SUMMARY TABLE

Electrical connection points on the main control board are labeled alphanumerically. These labels correspond with
the alphanumeric summary table, located on the wiring diagram. By referencing the summary table, it is possible to
identify which components are connected at which points on the main control board. Below is a layout diagram of
the main control board, and a copy of a model 700BCI-3 summary table. (See Figures 3-2 & 3-3)

NOTE: All components on the control board are non-replaceable. If a problem with the control board is identified,
the complete control board must be replaced.

NOTE: There is also a small control board in the control panel assembly (Not Shown). All components in the con­trol panel assembly are non-replaceable. If a problemwith the control panel is identified, the complete control panel
assembly must be replaced.

J5

PIN 1

J3

MAIN CONTROL BOARD SUMMARY

TERMINAL

120 VOLT CIRCUITS

LOW VOLTAGE THERMISTOR CIRCUITS

J5-1,2
J5-3,4
J5-5,6

P4
P3
P1

P2
J3-1
J3-2
J3-3
J3-4
J3-5
J3-6
J3-7
J2-1
J2-2
J2-3
J2-4

J5-7
J5-8
J6-1
J6-2
J6-3
J4-1
J4-2
J4-3
J4-4
J4-5
J4-6

CIRCUIT

COMPRESSOR

DEFROST

FAN 1

FAN 2

LIGHTS

UPPER
LOWER

EVAP
EVAP

DISPLAY
DISPLAY
DISPLAY
DISPLAY
DISPLAY

DESCRIPTION

LN

NEUTRAL
POWER IN

L1

COMPRESSOR
DEFROST HEATER
EVAPORATOR FAN
NOT USED

ICE MAKER

ICE

NOT USED
REFRIGERATOR FAN
NOT USED
LIGHTS
FRZ DRAWER LIGHT SENSE

LWR

REF DRAWER LIGHT SENSE

UPR

DEFROST SENSOR

DEF

ICE MAKER VALVE SENSOR

ICE

NOT USED
REFRIGERATOR COMPARTMENT
FREEZER COMPARMENT
EVAPORATOR
EVAPORATOR

N

BAFFLE NEUTRAL

C

BAFFLE CLOSE
BAFFLE OPEN

O

DISPLAY WIRING
DISPLAY WIRING
DISPLAY WIRING
DISPLAY WIRING
DISPLAY WIRING
DISPLAY WIRINGDISPLAY

J6

J4

PIN 1

PIN 1

PIN 1

P2 P1 P3 P4

NEUTRAL INTO BOARD

POWER INTO BOARD
POWERS COMPRESSOR AND CONDENSER FAN
POWERS DEFROST CIRCUIT AND FILL TUBE HEATER

POWERS EVAPORATOR FAN

POWERS ICE MAKER

POWERS FFAN IN REFRIGERATOR

POWERS LIGHTS
SENSES IF FREEZER DRAWER OPEN
SENSES IF REFRIGERATOR DRAWER OPEN
SENSES WHEN DEF HEATER SHUTS OFF
SENSES WATER VALVE ACTIVATION

SENSES REFRIGERATOR CABINET TEMPERATURE

SENSES FREEZER CABINET TEMPERATURE
SENSES EVAPORATOR TEMPERATURE
SENSES EVAPORATOR TEMPERATURE
BAFFLE NEUTRAL
PULSED TO CLOSE BAFFLE
PULSED TO OPEN BAFFLE
12VDC POWER SUPPLY FOR DISPLAY BOARD
12VDC POWER SUPPLY FOR DISPLAY BOARD
SERIAL DATA RECEIVE
SERIAL DATE TRANSMIT
GROUND FOR DISPLAY BOARD POWER SUPPLY

GROUND FOR DISPLAY BOARD POWER SUPPLY

PIN 1

J2

COLORFUNCTION

WHITE
BLACK

PURPLE

BLUE

RED

PINK

GRAY

YELLOW

ORANGE/BLACK

ORANGE

GRAY/WHITE

TAN

BLUE/YELLOW

BLUE/BLACK

BLUE/RED

ORANGE/RED

YELLOW/RED
YELLOW/BLACK
YELLOW/WHITE

BLACK
WHITE

RED
YELLOW
ORANGE

BLUE

Electronic Control System

Integrated

(700-3BASE)

Series

3-5

#3758424 - Revision B - December, 2005

CONTROL PANEL LAYOUT

NOTE: The LCD on the base units is not back lit. It will appear darker than the LCD on tall units.

Figure 3-4. 700BCI-3 Control Panel Layout

FREEZER SET-POINT

ADJUSTMENT KEYS

REFRIGERATOR SET-POINT

ADJUSTMENT KEYS

LCD

(Liquid Crystal Display)

DRAWER AJAR

ALARM ON/OFF KEY

UNIT

ON/OFF KEY

ICE

ON/OFF KEY

Figure 3-5. 700BR-3 Control Panel Layout

REFRIGERATOR SET-POINT

ADJUSTMENT KEYS

LCD

(Liquid Crystal Display)

DRAWER AJAR

ALARM ON/OFF KEY

UNIT

ON/OFF KEY

Figure 3-6. 700BFI-3 Control Panel Layout

FREEZER SET-POINT

ADJUSTMENT KEYS

LCD

(Liquid Crystal Display)

DRAWER AJAR

ALARM ON/OFF KEY

UNIT

ON/OFF KEY

ICE

ON/OFF KEY

SERVICE

ICE

OFF

SERVICE

OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

REFRIGERATOR

WARMERCOLDER

ON/OFF

UNITICE

ON/OFF

ON/OFF

UNIT

ON/OFF

ON/OFF

SERVICE

ICE

OFF

WARMERCOLDER

FREEZER

ON/OFF

ON/OFF

UNITICE

ON/OFF

Electronic Control System

Integrated

(700-3BASE)

Series

3-6

#3758424 - Revision B - December, 2005

WHEN IN OFF MODE, 115 VOLTS AC IS STILL PRESENT AT CONTROL BOARD.

Figure 3-7. Unit ON/OFF - Press UNIT ON/OFF Key

BASIC ELECTRONIC CONTROL INPUT OPERATIONS

The following pages describe the basic input operations performed at A 700BCI-3 control panel (switching unit ON
and OFF; adjusting set-point (temperature adjustment); switching ice maker system ON and OFF and enabling and
disabling door ajar alarm feature. Please note that though possible to display temperatures in Fahrenheit or Celsius,
in most cases Fahrenheit readings are shown.

Unit ON/OFF

All units are shipped in Off Mode. When power is supplied to the unit, a trace of the word “OFF” is visible on the
LCD. By pressing the UNIT ON/OFF key (See Figure 3-7), power is allowed past the control board to the rest of the
unit. This will be indicated by the unit lights illuminating and the LCD energizing.

NOTE: Whenever the unit is switched OFF using the UNIT ON/OFF key, a trace of the word “OFF” will be visible on
the LCD as long as power is supplied to the unit. This differs in Sabbath Mode, which will be covered later.

Adjusting Set-Point (Temperature Adjustments)

To adjust set-points, press WARMER or COLDER keys on control panel in multiple key strokes

until the desired set-

point is achieved. One key stroke equals one degree change (Fahrenheit or Celsius). (See Figure 3-8)

NOTE: Temperature ranges are -5°F (-21°C) to +5°F (-15°C) in freezer zones, +34°F (+1°C) to +45°F (+7°C) in
refrigerator zones, with initial set-points of 0°F (-18°C) and +38°F (+3°C), respectively.

NOTE: The initial stroke of the WARMER or COLDER keys will change previous set-point by one degree.

NOTE: The set-point will be displayed on the LCD for 10 seconds after the last WARMER or COLDER key stroke.

After the 10 second delay, the zone temperature will be displayed. As the zone temperature changes, the tempera­ture displayed on the LCD will change by no more than one degree per minute.

Figure 3-8. Adjusting Set-Point - Press WARMER or COLDER Key In Multiple Key Strokes

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

Electronic Control System

Integrated

(700-3BASE)

Series

3-7

#3758424 - Revision B - December, 2005

Icemaker System ON/OFF

All units with icemakers are shipped with the icemaker system switched OFF. By pressing the ICE ON/OFF key on
the control panel, power is allowed to the icemaker system, and “ICE” appears on the LCD (See Figure 3-9). To
disable the icemaker system, press the ICE ON/OFF key again and “ICE” will disappear from the LCD indicating the
icemaker system is OFF.

NOTE: When unit is in “Sabbath Mode,” icemaker system is disabled. Sabbath Mode will be covered later.

NOTE: To allow ice to freeze fully and reduce effects of low water pressure, power to the icemaker system is inter-

rupted for 45 minutes after each ice harvest. This can be bypassed for service purposes by pressing the ICE
ON/OFF key to switch the icemaker system OFF, then back ON.

Figure 3-9. Icemaker System ON/OFF - Press ICE ON/OFF Key

Ice system is active if “ICE” is displayed

Drawer Ajar Alarm ON/OFF

All units are equipped with a drawer ajar alarm feature. When activated, the alarm will alert a customer if a drawer
is stuck open or accidentally left open. To enable the drawer ajar alarm feature, press the drawer ajar alarm bell
ON/OFF key on the control panel. A bell icon will appear on the LCD indicating that the alarm feature is active.
(See Figure 3-10) Now, if a drawer is open for 30 seconds, the bell icon will blink and the audible alarm will beep.
To disable the drawer ajar alarm, simply press the drawer ajar alarm bell ON/OFF key and the bell icon on the LCD
will disappear, indicating the alarm feature is OFF.

Figure 3-10. Drawer Ajar Alarm ON/OFF - Press Alarm Bell ON/OFF Key

Alarm is active if bell is displayed

ICE

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

Electronic Control System

Integrated

(700-3BASE)

Series

3-8

#3758424 - Revision B - December, 2005

UNIQUE ELECTRONIC CONTROL INPUT OPERATIONS

The following pages describe unique electronic control input operations performed at the control panel that you
would not expect a customer to perform every day. The following input operations described are Temperature Unit
Selection Mode, Sabbath Mode, Showroom Mode, and Manual Freezer Evaporator Defrost.

Temperature Units Selection Mode (Selecting Degrees Fahrenheit or Degrees Celsius Display)

The electronic control is initially set to display temperature in Fahrenheit (°F) units of measure. Units of measure
can be converted from °F to °C (Celsius), and/or back again. This operation is called Temperature Units Selection.

NOTE: Temperature Units Selection must be performed within the first minute after switching the unit ON.

To convert the temperature units of measure from Fahrenheit readings to a Celsius readings, press and hold the
door ajar alarm bell ON/OFF key and the UNIT ON/OFF key simultaneously for 5 seconds, then release the keys.
“ °C “ will appear on the LCD indicating temperatures will now be displayed in Celsius units of measure. (See Figure
3-11) To convert back to Fahrenheit units of measure, repeat the steps above.

NOTE: Bottom Drawer must be closed. If not closed, unit will enter Model Configuration Mode.

NOTE: Temperature Units Selection Mode will end 10 seconds after the last key stroke.

Figure 3-11. Converting Temperature Units of Measure (within first minute after switching unit ON)

Press and Hold the Bell ON/OFF Key and UNIT ON/OFF Key for 5 Seconds

Sabbath Mode

Sabbath Mode was incorporated into the electronic control system for the observance of certain religious days.
Initiating Sabbath Mode disables the LCD, lighting system, icemaker systems and the door ajar alarm feature.

To initiate Sabbath Mode, the unit must first be switched OFF using the UNIT ON/OFF key (See Figure 3-12), then
press and hold the UNIT ON/OFF key for approximately 10 seconds, until the LCD and lights switch OFF (See
Figure 3-13). To return to normal operation, press and release the UNIT ON/OFF key.

NOTE: During Sabbath Mode, the refrigerator fan and evaporator fan may function when drawers are open.

NOTE: During Sabbath Mode, the LCD is disabled and set-points cannot be changed.

Figure 3-13. After Unit is Switched OFF, Press and Hold UNIT ON/OFF Key for 10 Seconds

Figure 3-12. To Enter Sabbath Mode, Switch Unit OFF First

Press and hold for 10 seconds

Press and hold for 5 seconds

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

Electronic Control System

Integrated

(700-3BASE)

Series

3-9

#3758424 - Revision B - December, 2005

Showroom Mode

Showroom Mode was incorporated into the electronic control system so that units could be displayed in a showroom
setting. When in Showroom Mode, all cooling functions are disabled, but the lighting system and LCD remain
active.

To initiate Showroom Mode, the unit must first be switched OFF using the UNIT ON/OFF key (See Figure 3-14).
With the unit switched OFF, press and hold either pair of WARMER and COLDER keys, then press the UNIT
ON/OFF key, then release all three keys (See Figure 3-15).

To return unit to normal operating condition, repeat the steps above.

NOTE: Always recheck set-points after returning unit to normal operating condition.

NOTE: It is possible to determine if a unit is in Showroom Mode by initiating Diagnostic Mode. If “Sr” is observed in

the left temperature display area during Diagnostic Mode, the unit is in Showroom mode. Initiating Diagnostic Mode
is covered later in this section.

Figure 3-15. After Unit is Switched OFF, Press and Hold the WARMER and COLDER Keys,

Then Press the UNIT ON/OFF Key

Figure 3-14. To Enter (or Exit) Showroom Mode, Switch Unit OFF First

Manual Freezer Evaporator Defrost

Manual Freezer Evaporator Defrost was incorporated into the electronic control to assist in servicing the appliance.

To manually defrost the freezer evaporator, press and hold the ICE ON/OFF key for 5 seconds (See Figure 3-16).

NOTE: Manual Freezer Evaporator Defrost will not operate if unit is in Sabbath Mode.

Figure 3-16. Initiate Manual Freezer Evaporator Defrost - Press and Hold the ICE key for 5 Seconds

Press and hold for 5 seconds

OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

ICE

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

Electronic Control System

Integrated

(700-3BASE)

Series

3-10

#3758424 - Revision B - December, 2005

FUNCTIONS OF ELECTRONIC CONTROL SYSTEM

The following few pages explain monitoring, regulating and controlling functions of the electronic control system.

Display Zone Temperatures

The temperature signals from the thermistors in the refrigerator and freezer compartments are monitored by the
microprocessor and then displayed on the LCD. Though the compartment air temperature does fluctuate, the LCD
displays the average temperature (See Figure 3-17).

NOTE: If zone temperature changes, temperature display will change by one degree per minute.

Figure 3-17. Display Zone Temperatures

Average temperature displayed

Figure 3-18. 700BCI-3 Signal Trace Schematic (High Voltage) of Lighting System

1. 115 Volts are supplied to
lighting system unless
unit is switched OFF, or
in Sabbath Mode.

2. Light switch position monitored
for alarm and fan operation.

Supply Power to the Lighting System

Power is supplied to the lighting system through the control board when the unit is switched ON by pressing UNIT
ON/OFF key. With a drawer open, the light switch allows power to the light. (See Figure 3-18).

NOTE: Power to the lights is monitored by the microprocessor to control the door ajar alarm feature and to help
control the operation of the evaporator fan and/or refrigerator compartment fan.

NOTE: When in Sabbath Mode, lighting system is disabled. Sabbath Mode will be covered later.

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

HIGH VOLTAGE SCHEMATIC

ORANGE

J2

PIN 1

MAIN BOARD

ORANGE W/BLACK STRIPE

PIN 1

J6

J4

PIN 1

PIN 1

J5

PIN 1

115 VOLTS
60 CYCLES

L1

NEUTRAL

WHITE

WHITE

P4

BLACK

P3

P1

P2

YELLOW

ORANGE

REF LIGHT

SWITCH

J3

FRZ LIGHT

SWITCH

REF (TOP)

DRAWER LIGHT

M

M

FRZ (BOTTOM)
DRAWER LIGHT

WHITE

M

M

ORANGE W/BLACK STRIPE

ORANGE

Electronic Control System

Integrated

(700-3BASE)

Series

3-11

#3758424 - Revision B - December, 2005

Regulate Freezer Zone Temperature (700BCI-3, 700BFI-3)

When the thermistor in the freezer compartment reaches high off-set temperature, calling for cooling, the compres­sor and condenser fan are energized, but the evaporator fan is not allowed to run until the thermistor on the evapo­rator reaches 35°F (2°C). (See Figure 3-19)

If either drawer is opened while the evaporator fan is operating, the microprocessor will detect the power signal to
the lights and cut power to the fan.

Though compartment air temperatures will fluctuate, LCD displays average temperature.

NOTE: If compartment temperature exceeds either high or low offset (Ex: drawer is left open), temperature display
will change by one
degree per minute.

NOTE: If freezer
compartment thermis­tor is faulty, compres­sor operation defaults
to 20 minutes ON, 20
minutes OFF cycling,
EE appears in left of
LCD, SERVICE will
flash and Error Code
07 will be logged.

NOTE: If evaporator
thermistor is faulty,
the compressor will
be energized after
the dwell time and
the evaporator fan
will be energized 3
minutes later. SER­VICE will flash and
Error Code 08 will be
logged.

NOTE: When in
Sabbath Mode, the
freezer compartment
thermistor still con­trols compressor
operation, except
there is a random 15
to 25 second delay
before the compres­sor is energized.

Figure 3-19. 700BCI-3 Signal Trace - Regulate Freezer Zone

1. Thermistor at high off-set
temp. calling for cooling.

2. No signal
to lights.

3. Compressor and
condenser fan
energized.

4. Evap Thermistor
below 35°F (2°C).

5. Evap fan
energized.

LOW VOLTAGE SCHEMATIC

J6

J5

J2

PIN 1

MAIN BOARD

PIN 1

J4

PIN 1

PIN 1

P4

P3

P1

P2

PIN 1

J3

DISPLAY

HIGH VOLTAGE SCHEMATIC

MEMBRANE KEYPAD

DISPLAY BOARD

THERMISTOR LOWER

DRAWER/FREEZER

115 VOLTS
60 CYCLES

PIN 1

PIN 1

THERMISTOR

EVAPORATOR

J2

J3

ORANGE W/RED STRIPE

BLUE W/RED STRIPE

BLUE W/BLACK STRIPE

BLUE W/BLACK STRIPE

L1

ORANGE

J2

PIN 1

MAIN BOARD

ORANGE W/BLACK STRIPE

PIN 1

J6

J4

PIN 1

PIN 1

J5

ORANGE W/BLACK STRIPE

ORANGE

PIN 1

NEUTRAL

WHITE

WHITE

P4

BLACK

P3

P1

P2

PURPLE

RED

OVERLOAD

PROTECTOR

CONDENSER FAN

M

COMPRESSOR

M

M

M

FRZ FAN MOTOR

FRZ (BOTTOM)

DRAWER LIGHT

YELLOW

ORANGE

REF LIGHT

SWITCH

FRZ LIGHT

SWITCH

REF (TOP)

DRAWER LIGHT

J3

RUNNING

CAPACITOR

COMPRESSOR
STARTING
RELAY

WHITE

(WHEN
USED)

Electronic Control System

Integrated

(700-3BASE)

Series

3-12

#3758424 - Revision B - December, 2005

Regulate Refrigerator Zone Temperature (700BCI-3)

When the thermistor in refrigerator compartment reaches high off-set temperature, calling for cooling, the refrigerator
compartment fan is energized and microprocessor sends an 18 Volt pulse signal to the air baffle control to open,
regardless of operational state of the compressor. Whenever the fan is energized, the microprocessor repeats send­ing a pulse signal every 5 minutes to the air baffle control to open. (See Figure 3-20)

If either drawer is opened while the refrigerator compartment fan is operating, the microprocessor will detect power
to the lights and cut power to the fan.

When thermistor in refrigerator compartment reaches low off-set temperature, power to refrigerator compartment fan
is cut and micro­processor sends an
18 Volt pulse signal
to the air baffle con­trol to close. When
refrigerator compart­ment fan is off, micro­processor repeats
sending a pulse sig­nal every 5 minutes
to the air baffle con­trol to close.

Though compartment
air temperatures fluc­tuates, the LCD dis­plays average tem­perature.

NOTE: If compart­ment temperature
exceeds either high
or low offset (Ex:
drawer is left open),
temperature display
will change by one
degree per minute.

NOTE: If refrigerator
compartment thermis­tor is faulty, compart­ment fan defaults to
20 minutes ON, 40
minutes OFF cycling,
EE appears in right of
LCD, SERVICE will
flash and Error Code
05 will be logged.

NOTE: When in
Sabbath Mode, refrig­erator compartment
thermistor still con­trols fan operation
except there is a ran­dom 15 to 25 second
delay before the fan
is energized.

Figure 3-20. 700BCI-3 Signal Trace - Regulate Refrigerator Zone

1. Thermistor at high off-set
temp. calling for cooling.

2. No power to ref. light.

3. Ref. fan energized.

4. Pulse signal to air baffle
control every 5 minutes.

LOW VOLTAGE SCHEMATIC

DISPLAY

REF AIR DUCT

BAFFLE

MEMBRANE KEYPAD

DISPLAY BOARD

THERMISTOR UPPER

DRAWER/REFRIGERATOR

PIN 1

PIN 1

J2

J3

YELLOW W/WHITE
YELLOW W/BLACK STRIPE

YELLOW W/RED STRIPE

BLUE W/YELLOW STRIPE

BLUE W/YELLOW STRIPE

J6

J5

J2

PIN 1

MAIN BOARD

PIN 1

J4

PIN 1

PIN 1

P4

P3

P1

P2

PIN 1

J3

HIGH VOLTAGE SCHEMATIC

115 VOLTS
60 CYCLES

ORANGE

J6

J5

J2

PIN 1

MAIN BOARD

PIN 1

J4

PIN 1

PIN 1

PIN 1

NEUTRAL

WHITE

GRAY

WHITE

P4

BLACK

P3

P1

P2

YELLOW

ORANGE

REF LIGHT

SWITCH

REF (TOP)

DRAWER LIGHT

J3

M

REF FAN

MOTOR

M

M

M

WHITE

L1

ORANGE

Electronic Control System

Integrated

(700-3BASE)

Series

3-13

#3758424 - Revision B - December, 2005

Regulate Refrigerator Zone Temperature (700BR-3)

When the thermistor in the refrigerator compartment reaches high off-set temperature, calling for cooling, the evapo­rator fan is energized, but the compressor and condenser fan are not allowed to run until the thermistor on the evap­orator reaches 38°F (3°C). (See Figure 3-21)

If either drawer is opened while the evaporator fan is operating, the microprocessor will detect the power signal to
the lights and cut power to the fan.

Though compartment air temperatures will fluctuate, LCD displays average temperature.

NOTE: If compartment temperature exceeds either high or low offset (Ex: drawer is left open), temperature display
will change by one
degree per minute.

NOTE: If refrigerator
compartment thermis­tor is faulty, compres­sor operation defaults
to 20 minutes ON, 40
minutes OFF cycling,
EE appears in left of
LCD, SERVICE will
flash and Error Code
05 will be logged.

NOTE: If evaporator
thermistor is faulty,
the compressor will
not energize until
zone air temperature
exceeds high offset
by 5°F (3°C). SER­VICE flashes and
Error Code 06 is
logged.

NOTE: When in
Sabbath Mode, the
refrigerator compart­ment thermistor still
controls compressor
operation, except
there is a random 15
to 25 second delay
before the compres­sor is energized.

Figure 3-21. 700BR-3 Signal Trace - Regulate Refrigerator Zone

1. Thermistor at high off-set
temp. calling for cooling.

2. No Power
to lights.

5. Compressor and
condenser fan
energized.

4. Evap Thermistor
above 38°F (3°C).

3. Evap fan energized.

LOW VOLTAGE SCHEMATIC

J6

J5

J2

PIN 1

MAIN BOARD

PIN 1

J4

PIN 1

PIN 1

P4

P3

P1

P2

PIN 1

J3

DISPLAY

THERMISTOR UPPER DRAWER/REFRIGERATOR

MEMBRANE KEYPAD

DISPLAY BOARD

THERMISTOR EVAPORATOR

PIN 1

PIN 1

J2

J3

ORANGE W/YELLOW STRIPE

BLUE W/YELLOW STRIPE

BLUE W/BLACK STRIPE
BLUE W/BLACK STRIPE

RED
WHITE
BLACK

BLUE

ORANGE

YELLOW

HIGH VOLTAGE SCHEMATIC

ORANGE

J2

PIN 1

MAIN BOARD

ORANGE W/BLACK STRIPE

PIN 1

J6

J4

PIN 1

PIN 1

J5

ORANGE W/BLACK STRIPE

ORANGE

PIN 1

115 VOLTS
60 CYCLES

L1

NEUTRAL

WHITE

RED

WHITE

P4

BLACK

P3

P1

P2

J3

PURPLE

ORANGE

UPPER

LIGHT SWITCH

YELLOW

LOWER

LIGHT SWITCH

UPPER DRAWER LIGHT

M

REF FAN MOTOR

OVERLOAD

PROTECTOR

CONDENSER FAN

LOWER DRAWER LIGHT

COMPRESSOR

M

M

RUNNING

CAPACITOR

COMPRESSOR
STARTING
RELAY

WHITE

(WHEN
USED)

Electronic Control System

Integrated

(700-3BASE)

Series

3-14

#3758424 - Revision B - December, 2005

Monitor and Control “Adaptive Defrost” (700BCI-3, 700BFI-3)

Initially, the compressor will cycle-run for 12 hours, after which the microprocessor sends a signal to the defrost relay
on the control board to close. This supplies power to the defrost heater, drain tube heater and fill tube heater. At
the same time the compressor, condenser fan and evaporator fan are switched off.

With the “Adaptive Defrost” technique, the length of time that the defrost heater stays on to open the defrost termina­tor bimetal (70°F/21°C), is observed by the microprocessor via the grey w/white stripe wire to J2.

The microprocessor then determines the number of hours before the next defrost. If the heater stays on for a short­er time than specified, the microprocessor increases the next defrost interval. If the heater stays on longer than
specified, the electronic control decreases the next defrost interval. (See Figure 3-13) This is an ongoing process
whereby the defrost time and the defrost interval will vary by unit use.

NOTE: A 5 minute time delay/dwell follows all defrosts, during which the drain tube heater and fill tube heater
remain energized. At the end of the 5 minute dwell, the drain tube heater and fill tube heater are switched off, then
the compressor and condenser fan are energized, but the evaporator fan will not be energized until the evaporator
temperature falls below 35°F (2°C).

NOTE: The minimum defrost interval is 6 hours of compressor run time; the maximum defrost interval is 42 hours of
compressor run time; the maximum defrost duration is 25 minutes plus 5 minute dwell.

NOTE: If the grey w/white wire defrost sensing line is open, defrost operation defaults to 25 minute defrost time and
6 hour build time, and Error Code 22 is logged. If the evaporator thermistor detects an underheat or overheat situa­tion at the same time, Error Codes 20 or 23 will be registered, respectively.

NOTE: During defrost, the display temperature is locked.

Figure 3-22. 700BCI-3 Signal Trace Schematic - Adaptive Defrost

5. Drain and fill tube
heaters remain
on during dwell.

2. Defrost circuit
energized.

3. Terminator
opens at
70°F (21°C)

1. Compressor runs 12
hours, then switched off.

4. Defrost duration
observed, interval
between next
defrost adjusted

HIGH VOLTAGE SCHEMATIC

J2

PIN 1

MAIN BOARD

PIN 1

J6

J4

PIN 1

PIN 1

J5

GRAY W/WHITE STRIPE

PIN 1

115 VOLTS
60 CYCLES

L1

NEUTRAL

WHITE

WHITE

P4

BLACK

P3

P1

BLUE

P2

BLUE

J3

M

COMPRESSOR

M

M

CONDENSER FAN

GRAY W/WHITE STRIPE

GRAY W/WHITE STRIPE

DEFROST
TERMINATOR

FRZ FAN MOTOR

WHITE

M

DEFROST HEATER

25 - 29 OHMS

DRAIN HEATER
1700 - 2100 OHMS

FILL TUBE HEATER

2300 -2900 OHMS

Electronic Control System

Integrated

(700-3BASE)

Series

3-15

#3758424 - Revision B - December, 2005

Monitor and Control Refrigerator Fan-Assisted, Off-Cycle Defrost (700BR-3)

Temperature signals from refrigerator evaporator's thermistor’s are observed by the microprocessor. During off cycle
defrost, if a refrigerator zone temperature reaches high offset (calling for cooling) before evaporator temperature
rises to 38°F (3°C), no power will be supplied the the compressor. But, the the zone evaporator fan will switch ON.
Once the evaporator temperatur reaches 38°F (3°C), normal cooling functions begin. (See Figure 3-23).

NOTE: If refrigerator compartment thermistor is faulty, compressor operation defaults to 20 minutes ON, 40 minutes
OFF cycling, EE appears in left of LCD, SERVICE will flash and Error Code 05 will be logged.

NOTE: If evaporator thermistor is faulty, the compressor will not energize until zone air temperature exceeds high
offset by 5°F (3°C). SERVICE flashes and Error Code 06 is logged.

NOTE: When in
Sabbath Mode, the
refrigerator compart­ment thermistor still
controls compressor
operation, except
there is a random 15
to 25 second delay
before the compres­sor is energized.

Figure 3-21. 700BR-3 Signal Trace - Regulate Refrigerator Zone

1. Thermistor at high off-set
temp. calling for cooling.

2. No Power
to lights.

5. compressor and
condenser fan
energized.

4. When Evap
Thermistor rises
above 38°F (3°C),

3. Evap fan energized.

LOW VOLTAGE SCHEMATIC

DISPLAY

THERMISTOR UPPER DRAWER/REFRIGERATOR

HIGH VOLTAGE SCHEMATIC

ORANGE

J2

PIN 1

MAIN BOARD

ORANGE W/BLACK STRIPE

PIN 1

J6

J4

PIN 1

PIN 1

J5

ORANGE W/BLACK STRIPE

ORANGE

PIN 1

P4

P3

P1

P2

J3

MEMBRANE KEYPAD

DISPLAY BOARD

THERMISTOR EVAPORATOR

115 VOLTS
60 CYCLES

L1

WHITE

BLACK

YELLOW

J2

PIN 1

PIN 1

J3

BLUE W/YELLOW STRIPE

BLUE W/BLACK STRIPE
BLUE W/BLACK STRIPE

NEUTRAL

WHITE

RED

PURPLE

ORANGE

UPPER

LIGHT SWITCH

LIGHT SWITCH

UPPER DRAWER LIGHT

LOWER

J2

PIN 1

MAIN BOARD

PIN 1

BLUE

ORANGE

YELLOW

RED
WHITE
BLACK

ORANGE W/YELLOW STRIPE

J6

J4

PIN 1

PIN 1

J5

REF FAN MOTOR

OVERLOAD

PROTECTOR

M

CONDENSER FAN

LOWER DRAWER LIGHT

M

COMPRESSOR

M

RUNNING

CAPACITOR

COMPRESSOR
STARTING
RELAY

WHITE

(WHEN
USED)

P4

P3

P1

P2

PIN 1

J3

Electronic Control System

Integrated

(700-3BASE)

Series

3-16

#3758424 - Revision B - December, 2005

Monitor Compressor Run Duration, Displays If Service is Needed

The microprocessor observes the state of the compressor relay to determine the length of compressor run time (See
Figure 3-22). If the compressor runs 100% (Freezer = 6 hours, Refrigerator = 4 hours), an error code is logged (EC

40), and defrost will be initiated, but SERVICE will not flash.

If several 100% compressor run periods occur, and a drawer was not opened during the last excessive compressor
run period, and the temperature in the zone is not able to fall half way between the set point and the low off-set,
then SERVICE will flash (See Figure 3-23).

NOTE: To clear a flashing SERVICE and error codes, the problem must be corrected, then the Alarm ON/OFF key
pressed for 15 seconds. Failure to clear an error code will cause SERVICE to display constant.

NOTE: If the unit is ever switched OFF then back ON, the compressor will not energize for at least 3 minutes. This
3 minute minimum OFF time is used to protect the compressor and its electricals.

Figure 3-23. Service Flashing if several 100% compressor run periods occurred, a drawer was not opened

during last excessive run period, and temperature is not able to fall half way between set point & low off-set.

Figure 3-22. 700BCI-3 Signal Trace Schematic - Compressor Run

1. Compressor relay closed,
allowing 115 Volts AC to
compressor. This is
observe by microprocessor.

HIGH VOLTAGE SCHEMATIC

J2

PIN 1

MAIN BOARD

PIN 1

J6

J4

PIN 1

PIN 1

J5

PIN 1

115 VOLTS
60 CYCLES

L1

NEUTRAL

WHITE

M

WHITE

P4

BLACK

P3

P1

BLUE

P2

J3

PURPLE

RED

TERMINATOR

OVERLOAD

PROTECTOR

M

CONDENSER FAN

COMPRESSOR

M

M

FRZ FAN MOTOR

RUNNING

CAPACITOR

COMPRESSOR
STARTING
RELAY

WHITE

(WHEN
USED)

SERVICE

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

Electronic Control System

Integrated

(700-3BASE)

Series

3-17

#3758424 - Revision B - December, 2005

Monitor Icemaker System and Display If Service is Needed

The microprocessor observes the power supplied to the icemaker water valve solenoid. If the solenoid is energized
for more than 15 seconds, power to the icemaker system is disabled for 24 hours and an error code is logged (EC

30). (See Figure 3-24) If this happens five consecutive times, ICE and SERVICE on the LCD will flash and the ICE
ON/OFF key will be disabled (See Figure 3-25).

NOTE: To clear the ICE and SERVICE error indicators, and reactivate the ICE ON/OFF key, the problem must be
corrected, then the unit must be switched OFF and back ON, and the Alarm key must be pressed for 15 seconds to
clear the Error Code.

NOTE: To allow ice to freeze fully and reduce effects of low water pressure, power to the icemaker system is inter­rupted for 45 minutes after each ice harvest. This can be bypassed for service purposes by switching the icemaker
system OFF, then back ON by pressing the ICE ON/OFF key.

NOTE: When in Sabbath Mode, icemaker system is disabled. Sabbath Mode will be covered later.

Figure 3-25. ICE & SERVICE Flashing if solenoid energized 15 seconds, every 24 hours, 5 consecutive times

Figure 3-24. 700BCI-3 Signal Trace Schematic - Icemaker Operation and Solenoid Monitoring

1. 115 Volts AC
to solenoid
monitored.

2. If solenoid
energized
more then
15 seconds,
power to IM
system
interrupted
for 24 hours.

HIGH VOLTAGE SCHEMATIC

TAN

J2

PIN 1

MAIN BOARD

PIN 1

J6

J4

PIN 1

PIN 1

J5

TAN

PIN 1

115 VOLTS
60 CYCLES

L1

NEUTRAL

WHITE

WHITE

P4

BLACK

P3

P1

P2

J3

PINK

ICEMAKER

SWITCH

THERMAL

FUSE

ICEMAKER
(OPTIONAL)

M

M

M

M

ICEMAKER

TAN

VALVE

WHITE

SERVICE

ICE

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

Electronic Control System

Integrated

(700-3BASE)

Series

3-18

#3758424 - Revision B - December, 2005

POSSIBLE ERROR INDICATORS

The diagrams on this page illustration what a customers may see on LCD if a problem/error exists with the unit.

NOTE: To clear indicators and error codes, problem must be corrected then press bell ON/OFF key for 15 seconds.

Figure 3-27.

“EE” Displayed at Right & “SERVICE” Flashing = Refrigerator Compartment Thermistor (or its Wiring) Fault

Figure 3-26.

“EE” Displayed at Left & “SERVICE” Flashing = Freezer Compartment Thermistor (or its Wiring) Fault

Figure 3-29.

Service Flashing = Several 100% run periods, a drawer was not open during last 100% run period, and zone

temperature not able to fall half way between set point and low off-set.

Figure 3-30.

“ICE” and “SERVICE” Flashing = Solenoid Energized 15 Seconds, Every 24 Hours, 5 Consecutive Times

Figure 3-31.

“SERVICE” Steady, not Flashing = Error Codes Observed in Diagnostic Mode, but not Cleared

Figure 3-28.

Service Flashing = Evaporator Thermistor (or its Wiring) Fault

Figure 3-32.

“- - ” Double Dashes Displayed = Model Configuration was not Performed

SERVICE

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

SERVICE

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

SERVICE

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

SERVICE

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

ICE

SERVICE

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

SERVICE

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

Electronic Control System

Integrated

(700-3BASE)

Series

3-19

#3758424 - Revision B - December, 2005

BR-3 Thermistor Code Table

THERMISTOR LOCATION CODE

Refrigerator Compartment r

Evaporator E

ELECTRONIC CONTROL TROUBLESHOOTING INPUT OPERATIONS

The following few pages explain troubleshooting input operations performed at the control panel. The input opera­tions described are Diagnostic Mode, Manual Component Activation Mode and Temperature Log Recall.

Diagnostic Mode

Initiating Diagnostic Mode allows the Service Technician to observe real-time temperature readings from all thermis­tors without temperature averaging.

To initiate Diagnostic Mode, the unit must be ON, then press and hold either

COLDER key, and press the UNIT
ON/OFF key, then release both keys (See Figure 3-33). The left display area will show the real-time temperature of
the thermistor, the right display area will show the thermistor location code, and all LCD indicators will illuminate.
Pressing either

COLDER key while in Diagnostic Mode will toggle forward to the next thermistor location (See
Figures 3-34 & 3-35), while pressing either WARMER key while in Diagnostic Mode will toggle backward to the pre­vious thermistor location.

NOTE: If the COLDER and UNIT ON/OFF keys are pressed and held for 10 seconds, Manual Component
Activation Mode will be initiated (this is covered later in the section).

NOTE: Diagnostic Mode will end 20 seconds after the last key stroke.

Figure 3-33. Initiate Diagnostic Mode - Press and Hold Either

COLDER Key, Then UNIT ON/OFF Key

(“F” Indicates Freezer Compartment)

Figure 3-34. Toggle Through Temperature Readings - Press Either COLDER Key

(“r” Indicates Refrigerator Compartment)

Figure 3-35. Toggle Through Temperature Readings - Press Either

COLDER Key

(“E” Indicates Evaporator)

BCI-3 Thermistor Code Table

THERMISTOR LOCATION CODE

Freezer Compartment F

Refrigerator Compartment r

Evaporator E

BFI-3 Thermistor Code Table

THERMISTOR LOCATION CODE

Freezer Compartment F

Evaporator E

SERVICE

ICE

OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

ICE

SERVICE

OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

SERVICE

ICE

OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

Electronic Control System

Integrated

(700-3BASE)

Series

3-20

#3758424 - Revision B - December, 2005

Figure 3-36. “EE” Observed in Diagnostic Mode = Thermistor Fault in Location Indicated by Code

Figure 3-37. “Sr” Observed While in Diagnostic Mode = Unit is in Showroom Mode

If “Sr” is observed at left display area during Diagnostic Mode, the unit is in Showroom Mode, which was explained
earlier in this section (See Figure 3-37).

If “EC” is observed in the right display area during Diagnostic Mode, the numbers at left are “Error Codes” (See
Figure 3-38). Error Codes indicate problems registered by specific components. If error codes are registered, they
will appear before temperature readings and can be toggled through with the temperature readings as described on
the previous page. (See Error Code Table below and instructions on clearing Error Codes on next page.)

Figure 3-38. “EC” Observed While in Diagnostic Mode = Error Code

(See table below & how to clear Error Codes on next Page)

700BCI-3 Error Code Table

CODE INDICATION

05 Refrig. cabinet thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s
07 Freezer cabinet thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s
08 Freezer evaporator thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s
20 Defrost under-heat with no voltage feedback through Gray/White wire at defrost start
21 Defrost overheat
22 No voltage feedback through Gray/White wire at defrost start
23 Defrost overheat with no voltage feedback through Gray/White wire at defrost start
24 Defrost under-heat
30 Excessive Icemaker Water Valve Solenoid Activation (Exceeded 15 Seconds)
40 Excessive Freezer Compressor Run
50 Excessive Refrigerator Fan Run

Diagnostic Mode Indicators

If “EE” is observed in left display area during Diagnostic Mode, the thermistor in that location is open or shorted, or
there is a break in that thermistor’s wiring (See Figure 3-36).

ICE

SERVICE

OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

ICE

SERVICE

OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

ICE

SERVICE

OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

Electronic Control System

Integrated

(700-3BASE)

Series

3-21

#3758424 - Revision B - December, 2005

If Error Codes are observed in Diagnostic Mode, a non-flashing SERVICE icon will appear on the LCD when
Diagnostic Mode ends, indicating error codes are still stored (See Figure 3-39). To clear a non-flashing SERVICE
icon and the error codes, the problem must be corrected and the unit must be ON, then the door ajar alarm bell
ON/OFF key must be pressed and held for 15 seconds. The control will emit a short “beep” when the SERVICE
icon and error codes are cleared. (See Figure 3-40)

Figure 3-40. Clear Non-flashing SERVICE - Press & Hold Bell ON/OFF Key for 15 Seconds

Figure 3-39. Non-flashing SERVICE after Diagnostic Mode = Error Codes are Stored

Press and hold for 15 seconds

BEEP!

Figure 3-41. Initiate Manual Component Activation Mode (Refrigerator Zone Shown) -

Press and Hold Desired COLDER Key and UNIT ON/OFF Key for 10 Seconds

Manual Component Activation Mode

Manual Component Activation Mode energizes the cooling system for 5 minutes, allowing a Service Technician to
check for proper voltage readings at activated components without having to wait for the zone to call for cooling.

To initiate Manual Component Activation Mode the unit must be ON, then press and hold the desired COLDER key
and the UNIT ON/OFF key for 10 seconds (See Figure 3-41). All cooling functions for that zone will begin and the
zone compartment temperature will be displayed in the left display area of the LCD and the right display area will
show the thermistor location.

NOTE: If a COLDER and the UNIT ON/OFF keys are pressed and held for less than 10 seconds, Diagnostic Mode
will be initiated. This was covered earlier in the section.

NOTE: It is possible to toggle through the other temperature readings as in Diagnostic Mode, but in this case the
temperature readings will last for 5 minutes rather than twenty seconds.

NOTE: The compressor overload could prevent the compressor from energizing.

NOTE: Manual Component Activation Mode will end 5 minutes after it is initiated. It is possible to end this 5 minute

run time and return to normal operation by switching the unit OFF then back ON. If this is done, note that the elec­tronic control will observe a 3 minute minimum compressor OFF time when the unit is switched back ON. This is to
protect the compressor and its electricals.

Press and hold for 10 seconds

SERVICE

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

ICE

SERVICE

OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

Electronic Control System

Integrated

(700-3BASE)

Series

3-22

#3758424 - Revision B - December, 2005

Temperature Log Recall Mode

The electronic control system is equipped with a temperature history data storage system. This system logs/stores
the average temperature of each individual thermistor every two hours, along with any event indicators (explained
later in this section), that may have occurred. These two-hour periods are referred to as “indexes”. Up to 168
indexes can be stored for each compartment, making it possible to observe the preceding fourteen days of the unit’s
temperature history (each index equals 2 hour temperature average; 2 hours X 168 indexes = 14 days). After 168
indexes are stored, each new index will bump the oldest index. Index number “1” being the most recent two-hour
temperature average and index number “168” being the oldest. Accessing this temperature history data so it can be
viewed on the LCD is accomplished by initiating Temperature Log Recall Mode.

There are two ways to initiate Temperature Log Recall Mode. One allows viewing of compartment temperature his­tory only (see below), the other allows viewing of compartment temperature history and evaporator temperature his­tory (see following page).

Initiate Temperature Log Recall Mode To View Compartment Temperature History Only - Begin with the unit
ON. Now, press and hold the desired compartment WARMER key, then press the UNIT ON/OFF key, then release
both keys (See Figure 3-42). The left display area on the LCD will show average compartment thermistor tempera­ture and in the right display area will be the index number. The first index number will be “1”, indicating the most
recent two-hour temperature average. The right display area will also flash the thermistor location code at 3 second
intervals (See Figure 3-43).

Figure 3-42. Initiate Temperature Log Recall Mode To View Compartment Temperature History Only -

Press and Hold Desired

WARMER Key, Then Press UNIT ON/OFF Key

Figure 3-43. Thermistor Location Code Flashes Every 3 Seconds

Figure 3-44. Toggle Up Through Indexes - Press WARMER Key in Consecutive Key Strokes

Figure 3-45. Toggle Down Through Indexes - Press COLDER Key in Consecutive Key Strokes

To toggle up through the indexes (from 1 to 168), press the same WARMER key in multiple key strokes (See Figure
3-44). To toggle down through the indexes (from 168 to 1), press the corresponding COLDER key in multiple key
strokes (See Figure 3-45).

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

Electronic Control System

Integrated

(700-3BASE)

Series

3-23

#3758424 - Revision B - December, 2005

Figure 3-48. Initiate Temperature Log Recall Mode To View Temperature History -

Press and Hold UNIT ON/OFF key first, then WARMER Key

Figure 3-46. Initiate Diagnostic Mode - Press and Hold Either COLDER Key, then the UNIT ON/OFF Key

Figure 3-47. Toggle Through Readings - Press Either

COLDER Key or Either WARMER Key Until Desired

Thermistor Temperature is Displayed

Initiate Temperature Log Recall Mode To View Compartment and Evaporator Temperature History - To view
compartment and/or evaporator temperature history, begin with the unit ON and in Diagnostic Mode (See Figure 30-

46). While in Diagnostic Mode, toggle through the readings until the desired thermistor temperature is displayed on
the LCD (See Figure 3-47). Now, press and hold the UNIT ON/OFF key first, then the WARMER key, then release
both keys (See Figure 3-48). The left display area on the LCD will show average thermistor temperature and in the
right display area will be the index number “1” indicating the most recent two-hour temperature average. The right
display area will also flash the thermistor location code at 3 second intervals (See Figure 3-49).

Figure 3-49. Thermistor Location Code Flashes Every 3 Seconds

Figure 3-50. Toggle Up Through Indexes - Press WARMER Key in Consecutive Key Strokes

Figure 3-51. Toggle Down Through Indexes - Press COLDER Key in Consecutive Key Strokes

To toggle up

through the indexes (from 1 to 168), press the same WARMER key in multiple key strokes (See Figure
3-50). To toggle down through the indexes (from 168 to 1), press the corresponding COLDER key in multiple key
strokes (See Figure 3-51).

ICE

SERVICE

OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

SERVICE

ICE

OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

Electronic Control System

Integrated

(700-3BASE)

Series

3-24

#3758424 - Revision B - December, 2005

Figure 3-53. SERVICE Illuminates - Indicates Unit was switched OFF During that Index Period by Pressing

UNIT ON/OFF Key

Figure 3-54. Bell Illuminates - Indicates Power Failure / Interruption During that Index Period

NOTE: If the unit was in Showroom Mode during any of the 168 indexes, average temperatures will continue to be
logged. No event indicator will appear with these temperatures.

NOTE: If the unit was switched OFF by pressing the UNIT ON/OFF key during any of the 168 indexes and there
was still power supplied to the control board, the average temperatures will continue to be logged. This means tem­peratures would be expected to rise and the SERVICE icon would be present in all indexes in which the unit was
OFF.

NOTE: Temperature Log Recall Mode will end 20 seconds after the last key stroke.

Temperature Log Event Indicators

The diagrams below illustrate possible event indicators that may be observed while in Temperature Log Recall
Mode. (See Figures 3-50 through 3-52 and Temperature Log Index Chart on next page))

Figure 3-52. “bl” Indicates Index is “blank

” - No Temperature has Been Logged Yet

(Only possible within first 14 days of unit operation, or after new control board is installed during service)

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

SERVICE

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

Electronic Control System

Integrated

(700-3BASE)

Series

3-25

#3758424 - Revision B - December, 2005

Index= Hours Past

1 = 2 Hrs
2=4 Hrs
3=6 Hrs
4 = 8Hrs
5 = 10Hrs
6 = 12 Hrs
7 = 14 Hrs
8 = 16 Hrs
9 = 18 Hrs

10 = 20 Hrs

11 = 22 Hrs

12 = 24 Hrs (1 Day)
13 = 26 Hrs
14 = 28 Hrs
15 = 30 Hrs
16 = 32 Hrs
17 = 34 Hrs
18 = 36 Hrs
19 = 38 Hrs
20 = 40 Hrs
21 = 42 Hrs
22 = 44 Hrs
23 = 46 Hrs
24 = 48 Hrs (2 Days)
25 = 50 Hrs
26 = 52 Hrs
27 = 54 Hrs
28 = 56 Hrs
29 = 58 Hrs
30 = 60 Hrs
31 = 62 Hrs
32 = 64 Hrs
33 = 66 Hrs
34 = 68 Hrs
35 = 70 Hrs
36 = 72 Hrs (3 Days)
37 = 74 Hrs
38 = 76 Hrs
39 = 78 Hrs
40 = 80 Hrs
41 = 82 Hrs
42 = 84 Hrs

Index= Hours Past

43 = 86 Hrs
44 = 88 Hrs
45 = 90 Hrs
46 = 92 Hrs
47 = 94 Hrs
48 = 96 Hrs (4 Days)
49 = 98 Hrs
50 = 100 Hrs
51 = 102 Hrs
52 = 104 Hrs
53 = 106 Hrs
54 = 108 Hrs
55 = 110 Hrs
56 = 112 Hrs
57 = 114 Hrs
58 = 116 Hrs
59 = 118 Hrs
60 = 120 Hrs (5 Days)
61 = 122 Hrs
62 = 124 Hrs
63 = 126 Hrs
64 = 128 Hrs
65 = 130 Hrs
66 = 132 Hrs
67 = 134 Hrs
68 = 136 Hrs
69 = 138 Hrs
70 = 140 Hrs
71 = 142 Hrs
72 = 144 Hrs (6 Days)
73 = 146 Hrs
74 = 148 Hrs
75 = 150 Hrs
76 = 152 Hrs
77 = 154 Hrs
78 = 156 Hrs
79 = 158 Hrs
80 = 160 Hrs
81 = 162 Hrs
82 = 164 Hrs
83 = 166 Hrs
84 = 168 Hrs (7 Days)

Index= Hours Past

85 = 170 Hrs
86 = 172 Hrs
87 = 174 Hrs
88 = 176 Hrs
89 = 178 Hrs
90 = 180 Hrs
91 = 182 Hrs
92 = 184 Hrs
93 = 186 Hrs
94 = 188 Hrs
95 = 190 Hrs
96 = 192 Hrs (8 Days)
97 = 194 Hrs
98 = 196 Hrs

99 = 198 Hrs
100 = 200 Hrs
101 = 202 Hrs
102 = 204 Hrs
103 = 206 Hrs
104 = 208 Hrs
105 = 210 Hrs
106 = 202 Hrs
107 = 214 Hrs
108 = 216 Hrs (9 Days)
109 = 218 Hrs
110 = 220 Hrs

111 = 222 Hrs
112 = 224 Hrs
113 = 226 Hrs
114 = 228 Hrs
115 = 230 Hrs
116 = 232 Hrs
117 = 234 Hrs
118 = 236 Hrs
119 = 238 hrs
120 = 240 Hrs (10 Days)
121 = 242 Hrs
122 = 244 Hrs
123 = 246 Hrs
124 = 248 Hrs
125 = 250 Hrs
126 = 252 Hrs

Index= Hours Past

127 = 254 Hrs
128 = 256 Hrs
129 = 258 Hrs
130 = 260 Hrs
131 = 262 Hrs
132 = 264 Hrs (11 Days)
133 = 266 Hrs
134 = 268 Hrs
135 = 270 hrs
136 = 272 Hrs
137 = 274 Hrs
138 = 276 Hrs
139 = 278 Hrs
140 = 280 Hrs
141 = 282 Hrs
142 = 284 Hrs
143 = 286 Hrs
144 = 288 Hrs (12 Days)
145 = 290 Hrs
146 = 292 Hrs
147 = 294 Hrs
148 = 296 Hrs
149 = 298 Hrs
150 = 300 Hrs
151 = 302 Hrs
152 = 304 Hrs
153 = 306 Hrs
154 = 308 Hrs
155 = 310 Hrs
156 = 312 Hrs (13 Days)
157 = 314 Hrs
158 = 316 Hrs
159 = 318 Hrs
160 = 320 Hrs
161 = 322 Hrs
162 = 324 Hrs
163 = 326 hrs
164 = 328 Hrs
165 = 330 Hrs
166 = 332 Hrs
167 = 334 Hrs
168 = 336 Hrs (14 Days)

Temperature Log Index Chart

NOTE : The chart below applies to the hours in which the control has power. Temperature history data will only be
stored when the control has 115V AC supplied to it. If power to the unit is interrupted, the average temperatures for
that time period are stored with the event indicator. The temperature history data is stored in a non-volatile memory,
so the data is not erased by a power failure, but actual time passage during the power failure will not be shown.

TEMPERATURE LOG INDEX CHART

Electronic Control System

Integrated

(700-3BASE)

Series

3-26

#3758424 - Revision B - December, 2005

ELECTRONIC CONTROL SERVICE INPUT OPERATIONS

Model Configuration Mode

The main control board is used in several different models, so when a 700-3 Base Unit is manufactured, the main
control board must be configured/programmed for the specific model it is used in by a series of key strokes at the
control panel. This is called Model Configuration.

If a new main control board is installed during a service call, double dashes ( - - ) will appear on the LCD (See
Figure 3-55). This indicates the new board must be configured for the model it was installed into. This is accom­plished in Model Configuration Mode, which is entered as soon as power is supplied to the unit. While in this mode,
open the bottom drawer

, then toggle through the model codes by pressing WARMER or COLDER keys, until appro­priate model code is displayed (See Figure 3-56 and 3-57, and Model Code Table below). With appropriate model
code displayed, press UNIT ON/OFF key to store model configuration (See Figure 3-58).

MODEL CODE TABLE

CODE MODEL

br 700BR-3

bC 700BCI-3

27 427R-2

bF 700BFI-2

Figure 3-55. “- - ” Double Dashes when New Board Installed = Model Configuration must be Performed

Figure 3-56. Press WARMER or COLDER key to Toggle Through Model Codes

Figure 3-58. Press UNIT ON/OFF Key to Store Model Configuration

Figure 3-57. Stop When Appropriate Model Code is Displayed

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

Electronic Control System

Integrated

(700-3BASE)

Series

3-27

#3758424 - Revision B - December, 2005

Manual Entry Model Configuration Mode

Manual Entry Model Configuration Mode allows a Service Technician to verify a main control board in a 700-3 Base
unit was configured correctly, and/or to reconfigure the main control board if a mistake was made during the configu­ration process.

To initiate Manual Entry Model Configuration Mode the unit must be ON and the bottom drawer open

. Now, press
either COLDER key and the UNIT ON/OFF key (See Figure 3-59). Then, Press and hold the drawer ajar alarm bell
ON/OFF key and the UNIT ON/OFF key together for 15 seconds. The unit will now be in Model Configuration Mode,
with the model code of the last configuration displayed (See Figure 3-60 and Model Code Table on previous page).
If needed, toggle through the model codes by pressing WARMER or COLDER keys, until appropriate model code is
displayed (See Figure 3-61 and 3-62). With appropriate model code displayed, press UNIT ON/OFF key to store
model configuration (See Figure 3-63).

Figure 3-60. Press Alarm and UNIT ON/OFF key to Initiate Manual Entry Model Configuration Mode

Figure 3-63. Press UNIT ON/OFF Key to Store Model Configuration

Figure 3-62. Stop When Appropriate Model Code is Displayed

Figure 3-59. Start in Diagnostic Mode - Press and Hold Either COLDER Key, Then UNIT ON/OFF Key

Press and hold for 15 seconds

Figure 3-61. Press WARMER or COLDER key to Toggle Through Model Codes

ICE

SERVICE

OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

UNITICE

ON/OFF

UNITICE

ON/OFF

Electronic Control System

Integrated

(700-3BASE)

Series

3-28

#3758424 - Revision B - December, 2005

Sealed System Information

Integrated

(700-3BASE)

Series

4-1

#3758424 - Revision B - December, 2005

SECTION 4

SEALED SYSTEM

INFORMATION

Sealed System Information

Integrated

(700-3BASE)

Series

4-2

#3758424 - Revision B - December, 2005

HFC-134a REFRIGERANT SERVICE INFORMATION

The sealed systems contain HFC-134a refrigerant. This section provides some general rules for working with 134a,
and explains procedures to be followed while servicing the sealed system. This is followed by diagrams which illus­trate sealed system operation, then model-specific refrigerant flow diagrams.

134a refrigerant requires Synthetic Ester oil in the compressor, and does not tolerate contamination from
other refrigerants, moisture, petroleum-based lubricants, silicone lubricants, cleaning compounds, rust
inhibitors, leak detection dyes, or any other type of additive.

General Rules for Working with 134a Refrigerant

• Use equipment dedicated to 134a sealed system service only.

• Use only 134a refrigerant for back-flushing and sweep charging.

• Always replace the filter-drier when servicing the sealed system.

• The filter-drier must be cut from the sealed system. Never un-braze the drier as the heat will drive moisture
back into the sealed system.

• Do not leave sealed system nor replacement compressor open to the atmosphere for more than 10 minutes.

• When the rubber plugs are pulled from the service compressor, a release of pressure should be heard. If no
release of pressure is heard, do not use the compressor.

• Use ONLY virgin 134a refrigerant when recharging the sealed system.

Sealed System Information

Integrated

(700-3BASE)

Series

4-3

#3758424 - Revision B - December, 2005

700-2 SERIES SEALED SYSTEM REPAIR PROCEDURES

Service Procedures

a. Capture refrigerant
b. Replace Compressor
c. Replace filter-drier
d. Evacuate or sweep charge system
e. Recharge system with Virgin 134a refrigerant.

NOTE: To check for a non-operating compressor, a hard start kit can be used.

a. Capture refrigerant.
b. Repair leak.
c. Replace filter-drier.
d. Evacuate or sweep charge system.
e. Recharge system with Virgin 134a refrigerant.

a. Capture refrigerant.
b. Repair leak (if at solder joint) or replace part.
c. Back flush high side of sealed system.
d. If all refrigerant has escaped & system is in vacuum, replace compressor
e. Replace filter-drier.
f. Evacuate or sweep charge system.
g. Recharge system with Virgin 134a refrigerant.

a. Capture refrigerant.
b. Repair leak (if at solder joint) or replace part.
c. Back flush high side of sealed system.
d. Replace compressor.
e. Replace filter-drier.
f. Replace heat exchanger if cap tube is clogged.
g. Install a low side drier on suction line.
h. Evacuate or sweep charge sealed system.
i. Recharge with Virgin 134a refrigerant.

a. Capture refrigerant.
b. Locate and remove restriction or locate and replace part.
c. Back flush high side of sealed system.
d. Replace filter-drier.
e. Evacuate or sweep charge system.
f Recharge system with Virgin 134a refrigerant.

a. Capture refrigerant.
b. Replace filter-drier.
c. Evacuate or sweep charge system.
d. Recharge system with Virgin 134a refrigerant.

.

Problem

Non-Operating, Inefficient,
Noisy Compressor

High Side leak

Low Side Leak

Contaminated Sealed System

Examples:
> Burned out compressor
> Excessive moisture from

leak in condensate loop or in
low side

> Plugged capillary tube

Restriction

NOTE: If restriction is due to
sealed system being contami­nated, see Contaminated
Sealed System above.

Overcharge

Sealed System Information

Integrated

(700-3BASE)

Series

4-4

#3758424 - Revision B - December, 2005

SEALED SYSTEM
OPERATION

The six diagrams on these
pages illustrate a basic sealed
system. The components are
listed in order of refrigerant
flow, with an explanation of
their fundamental role as part
of a sealed system.

Compressor (Figure 4-1)

The compressor creates a high
side and low side pressure dif­ference in the sealed system
by compressing the refrigerant
gas, thus raising the pressure
and temperature. The com­pressor pushes this high-pres­sure/high-heat gas to the con­denser.

Condenser (Figure 4-2)

The high-pressure/high-heat
gas travels through the con­denser, where the heat is dissi­pated by cooler air being drawn
over the condenser tubing by
the condenser fan. This
changes the gas into a high­pressure/warm liquid that is
then routed through the door
gasket seat heater loop to pre­vent sweating. After traveling
through the heater loop, the
high-pressure/warm liquid
enters the high-side filter-drier.

Filter-Drier (Figure 4-3)

The high-pressure/warm liquid
travels through the high-side fil­ter-drier, which removes mois­ture from the refrigerant before
it enters the capillary tube.

Figure 4-1. Compressor

Figure 4-3. Filter-Drier

Figure 4-2. Condenser & Heater Loop

COMPRESSOR

CONDENSOR

HEATER LOOP

FILTER-DRIER

Sealed System Information

Integrated

(700-3BASE)

Series

4-5

#3758424 - Revision B - December, 2005

Capillary Tube (& Heat
Exchanger) (Figure 4-4)

The warm liquid refrigerant
travels through the long skinny
capillary tube which is soldered
to the suction line. (These two
tubes soldered together create
the heat exchanger.) As the
warm liquid refrigerant travels
through the capillary tube it
gives up heat to the cool refrig­erant gas traveling through the
suction line and the pressure
drops, so it is a low­pressure/cool liquid before it
enters the evaporator.

Evaporator (Figure 4-5)

As the low-pressure/cool liquid
refrigerant enters the evapora­tor, it vaporizes. This is caused
by a dramatic pressure change
which occurs when the refriger­ant enters the larger diameter
evaporator tubing from the
smaller diameter capillary tub­ing. This vapor travels through
the evaporator absorbing heat
from the compartment, gradual­ly converting it to a cool gas.
This cool gas then enters the
suction line.

Suction Line (& Heat
Exchanger) (Figure 4-6)

The cool gas travels through
the suction line which is sol­dered to the capillary tube. (As
mentioned earlier, these two
tubes soldered together create
the heat exchanger.) As this
cool refrigerant gas travels
through the suction line it
absorbs heat from the warm liq­uid refrigerant traveling through
the capillary tube, making it a
luke warm gas. The lukewarm
refrigerant gas then returns to
the compressor where the
process begins again.

Figure 4-4. Capillary Tube (& Heat Exchanger)

Figure 4-6. Suction Line & Heat Exchanger

Figure 4-5. Evaporator

CAPILLARY TUBE

HEAT EXCHANGER

(EVAPORATOR SUMP)

EVAPORATOR

(EVAPORATOR SUMP)

SUCTION LINE

HEAT EXCHANGER

(EVAPORATOR SUMP)

Sealed System Information

Integrated

(700-3BASE)

Series

4-6

#3758424 - Revision B - December, 2005

SEALED SYSTEM REFRIGERANT FLOW DIAGRAM

Figure 4-1. Model 700BC/I-2 Refrigerant Flow

Figure 4-2. Model 700BR-2 Refrigerant Flow

Compressor

Evaporator

Heater Loop

Heat Exchanger

Condenser

High-Side Filter Drier

Compressor

Evaporator

Heater Loop

Heat Exchanger

Condenser

High-Side Filter Drier

Sealed System Information

Integrated

(700-3BASE)

Series

4-7

#3758424 - Revision B - December, 2005

Figure 4-3. Model 700BF/I-2 Refrigerant Flow

Compressor

Evaporator

Heater Loop

Heat Exchanger

Condenser

High-Side Filter Drier

Sealed System Information

Integrated

(700-3BASE)

Series

4-8

#3758424 - Revision B - December, 2005

Airflow & Fan Blade Spacing

Integrated

(700-3BASE)

Series

5-1

#3758424 - Revision B - December, 2005

SECTION 5

AIRFLOW &

FAN BLADE SPACING

Airflow & Fan Blade Spacing

Integrated

(700-3BASE)

Series

5-2

#3758424 - Revision B - December, 2005

AIRFLOW AND FAN BLADE SPACING DIAGRAMS

Figure 5-1. 700BC/I-3 Airflow and Fan Blade Spacing

Figure 5-2. 700BR-3 Airflow and Fan Blade Spacing

REFRIGERATOR

COMPARTMENT

FAN BLADE HUB

TO FAN BRACKET

SPACING

EVAPORATOR

FAN BLADE HUB

TO FAN BRACKET

SPACING

11/16" ± 1/16"

(17.46 mm ± 1.59 mm)

Blade

Clamp
Back

Bracket

13/16" ± 1/16"

(20.64 mm ± 1.59 mm)

Blade

Clamp
Forward

Bracket

NOTE: Refrigerator Fan blade
spacing with production motor is
same as service motor shown
above, but measurement is from
fan blade hub to fan motor face.

REFRIGERATOR

EVAPERATOR

FAN BLADE HUB

TO FAN BRACKET

SPACING

3/4" ± 1/16"

(19.05 mm ± 1.59 mm)

Clamp
Forward

Blade

Bracket

Airflow & Fan Blade Spacing

Integrated

(700-3BASE)

Series

5-3

#3758424 - Revision B - December, 2005

Figure 5-3. 700BF/I-3 Airflow and Fan Blade Spacing

EVAPORATOR

FAN BLADE HUB

TO FAN BRACKET

SPACING

11/16" ± 1/16"

(17.46 mm ± 1.59 mm)

Blade

Clamp
Back

Bracket

Airflow & Fan Blade Spacing

Integrated

(700-3BASE)

Series

5-4

#3758424 - Revision B - December, 2005

Icemaker Information

Integrated

(700-3BASE)

Series

6-1

#3758424 - Revision B - December, 2005

SECTION 6

ICEMAKER

INFORMATION

Icemaker Information

Integrated

(700-3BASE)

Series

6-2

#3758424 - Revision B - December, 2005

MODULAR ICEMAKER

All 700-2 Series units utilize a “modular icemaker.” The icemaker operation is not complex, however, an
understanding of its cycle of operation is necessary in order for a serviceman to make a proper diagnosis.

Modular Icemaker Operation

When the icemaker thermostat has sensed temperatures of 17°F, the thermostat closes. At this time, the current
now has a path through the thermostat to the motor. The motor is linked with the drive gear. From the module,
there are copper contacts that ride on copper strips on the backside of the drive gear. (See Figure 6-1) As the drive
gear rotates, these contacts from the module will make or break a circuit (track) to the copper strips to generate the
icemaker cycle.

Figure 6-1. Modular Icemaker Electrical Schematic

Pink

Tan

Icemaker Information

Integrated

(700-3BASE)

Series

6-3

#3758424 - Revision B - December, 2005

Additional Icemaker Operation Notes

NOTE 1: The ICE ON/OFF key at the control panel activates the icemaker system. If “ICE” is not displayed on the

LCD, the icemaker system is OFF.

NOTE 2: To allow ice to freeze fully and reduce effects of low water pressure, the electronic control system disables

the icemaker system for 45 minutes after each ice harvest. To bypass the 45 minute dwell, press the ICE
key to switch the ice making system OFF, then press the ICE key again to cycle the ice making system
back ON.

NOTE 3: The ice bucket activates a switch when in place. If the ice bucket is not in proper position, ice production

will stop.

NOTE 4: The icemaker shut-off arm must be in the “down / on” position for the icemaker to operate.

NOTE 5: The icemaker relay on the control board also controls the fill tube heater and water valve.

What Happens During Ejector Blade Rotation

Figure 6-2 represents a view of the ejector blade from the front (or module side) of the icemaker. This diagram indi­cates what happens during the rotation of the ejector blade and will assist the Service Technician in diagnosing ice­maker problems

Figure 6-2. Ejector Blade Rotation Diagram

Water Valve Energized

7.5 Seconds

Ejector Blade Stop Position

(about 1:30 o'clock)

140cc. or 4-3/4oz. Fill

(about 11:00 o'clock)

Start Position

Thermostat Closes

Motor On, Heater On

Ejector Blade Stalls on Ice

Thermistor Opens

in This Range of Rotation

Heater Off

6:00 o'clock (reference)

Motor On, Heater On

(1/2 Minute to 5 Minutes

about 4:00 o'clock)

Icemaker Information

Integrated

(700-3BASE)

Series

6-4

#3758424 - Revision B - December, 2005

MODULAR ICEMAKER TEST PROCEDURES

Perform the following tests if the icemaker is thought to be defective. See Figure 6-3 for icemaker test port loca­tions. Test 1 through 5 are performed with power supplied to the icemaker, so read the “WARNING” below and the
“additional Ice Production Notes” on the previous page before proceeding.

ELECTRIC SHOCK HAZARD! TESTS 1 THROUGH 5 ARE PERFORMED WITH POWER SUPPLIED TO THE
ICEMAKER. CARE MUST BE TAKEN WHEN PERFORMING THESE TESTS TO AVOID SEVERE PERSONAL
INJURY OR DEATH.

Voltage Tests

1. Check for power between ports “L” and “N”. Make sure test probes go into test ports 1/2”.

2. Strip 1/2” of insulation from each end of a 3” piece of insulated 14 gauge wire to create a jumper/test wire.
Insert the stripped ends of this jumper/test wire into ports “T” and “H” to bypass the thermostat.

NOTE: Do not place the jumper/test wire between any other ports as this will damage the icemaker.

If the motor doesn’t run, replace the module/motor assembly.

3. Leave the jumper/test wire in until the ejector
blades rotate to approximately 8:00 o’clock. The
mold heater should heat up. If not, see test 5
below.

4. Remove the jumper/test wire when the ejector
blades reach the 8:00 o’clock position. The
water valve should energize for 7.5 seconds
when the ejector blades rotate to approximately
11:00 o’clock. If not, repeat test 2 through 4 and
check for power to solenoid when ejector blades
rotate to approximately 11:00 o’clock. If no volt­age, check electrical connections.

Continuity Tests and Thermostat Inspection

5. With icemaker removed from the unit, check the
resistance of the mold heater between ports “L”
and “H.” Reading should be between 62 - 82
Ohms. Replace mold/heater assembly if outside
this range.

6. With the module/motor separated from the
mold/heater assembly, check the resistance of
the motor between ports “L” and “M.” Reading
should be between 3390 - 4410 Ohms. Replace
module/motor assembly if outside this range.

7. If icemaker passes tests 1 through 6, check for
adequate supply of Thermal-Mastic on icemaker
thermostat. If little or no Thermal-Mastic, apply
Thermal-Mastic to thermostat. If adequate sup­ply is present, replace thermostat.

8. See General Troubleshooting Guide if icemaker
passes tests 1 through 7.

NOTE: Never attempt to turn the icemaker ejector blades by hand. Doing so will damage the icemaker

Figure 6-3. Icemaker Test Ports

N

V

L

T

TEST PORTS

H-T
L-H

L-M

L-N
V-N

Thermostat
Heater
Motor
115V AC
Valve

M

H

Icemaker Information

Integrated

(700-3BASE)

Series

6-5

#3758424 - Revision B - December, 2005

WATER FILL ADJUSTMENT

The water valve should energize for approximately 7.5
seconds. This should supply 140cc. of water to the ice­maker, or approximately 4.75oz. If this is not the case,
the fill amount can be adjusted with the water fill adjust­ment screw. (See Figure 6-4)

To increase the fill amount, turn the water fill adjustment
screw counterclockwise. To decrease the fill amount,
turn the water fill adjustment screw clockwise. A 360°
turn will affect the fill by 40cc. A 180° turn will effect the
fill by 20cc.

ICEMAKER DISASSEMBLY

Module/Motor Assembly Removal

To remove the module/motor assembly, first remove the
cover and the shut-off arm. Then, extract the
module/motor assembly mounting screws and pull the
module from the support. (See Figure 6-5)

Mold/Heater Assembly Removal

To remove the mold/heater assembly, first remove the
cover and the shut-off arm. Insert a Phillips head
screwdriver into the access holes and extract the
screws. Then, pull the mold/heater assembly from the
support. (See Figure 6-5)

Ejector Blades and/or Ice Stripper Removal

To remove the ejector blades and/or ice stripper, first
remove the cover and the shut-off arm and disconnect
the mold/heater assembly from the support. (See
Figure 6-5) Then, pull the ejector blades and/or ice
stripper from the mold.

Icemaker Thermostat Removal

To remove the icemaker thermostat, first remove the
cover and the shut-off arm and disconnect the
mold/heater assembly from the support. (See Figure 6-

5) Then, use a needle-nose pliers to grasp one of the
retaining clips and pull out. (See Figure 6-6)

Figure 6-4. Water Fill Adjustment

Figure 6-5. Icemaker Component Removal

Figure 6-6. Thermostat Retaining Clips

WATER FILL

ADJUSTMENT

SCREW

MODULE/MOTOR

ASSEMBLY

MOUNTING SCREWS

SHUT-OFF

ARM

MOLD ATTACHMENT

SCREW ACCESS HOLES

(2 - PHILLIPS HEAD)

Thermostat

Retaining

Clips

Icemaker Information

Integrated

(700-3BASE)

Series

6-6

#3758424 - Revision B - December, 2005

Component Access/Removal

Integrated

(700-3BASE)

Series

7-1

#3758424 - Revision B - December, 2005

SECTION 7

COMPONENT ACCESS

AND REMOVAL

Component Access/Removal

Integrated

(700-3BASE)

Series

7-2

#3758424 - Revision B - December, 2005

COMPONENT ACCESS AND REMOVAL

This section explains how to adjust, access and/or remove 700-3 Series base unit components. If different models
have similar procedures, they are grouped together under the appropriate heading. The units covered in the proce­dures are listed between brackets after the heading.

This section is arranged as follows:

.............................................................................................................. Page:

• Exterior Cosmetic / Mechanical Components ........................................................................................................................ 7-3

• Interior Cosmetic / Mechanical Components ........................................................................................................................ 7-5

• Compressor Area Mechanical Components ........................................................................................................................ 7-15

• Sealed System Components.................................................................................................................................................. 7-20

An attempt has been made to arrange these procedures in such a way as to simulate which components would
need to be removed first in order to gain access to other components. When following a component removal proce­dure, it may be necessary to reference another component removal procedure listed earlier in this section.

NOTE: Before continuing, please take note of the WARNINGS and CAUTIONS below.

• IF IT IS NECESSARY TO REMOVE A UNIT FROM ITS INSTALLATION, REMEMBER THAT THE UNIT

COULD TIP FORWARD WHEN PULLED FORWARD BEYOND THE ANTI-TIP COMPONENTS, RESULTING
IN SERIOUS INJURY OR DEATH. PULLING A UNIT FROM ITS INSTALLATION SHOULD ONLY BE PER­FORMED BY AN AUTHORIZED SERVICE TECHNICIAN OR INSTALLER.

• TO AVOID ELECTRIC SHOCK, POWER TO THE UNIT MUST BE DISCONNECTED WHENEVER ACCESS-

ING AND/OR REMOVING COMPONENTS POWERED BY ELECTRICITY OR COMPONENTS NEAR OTHER
ELECTRICAL COMPONENTS. IF THE UNIT IS PLUGGED IN, BUT HAS NOT BEEN SWITCHED ON BY
PRESSING THE UNIT ON/OFF KEY, 115 VOLTS AC IS STILL PRESENT AT THE MAIN CONTROL BOARD.

• IF REMOVING A DRAWER REMEMBER THAT DRAWERS ARE HEAVY. IF THEY WERE TO FALL, THEY

COULD CAUSE SERIOUS PERSONAL INJURY.

• If working in the compressor area, remember that compressor and tubing may be hot.

• If working on or around the evaporator or condenser, remember that evaporator and condenser fins are

sharp.

Component Access/Removal

Integrated

(700-3BASE)

Series

7-3

#3758424 - Revision B - December, 2005

EXTERIOR COSMETIC AND MECHANICAL
COMPONENTS

Kickplate/Grille Removal (All Base Units)

The kickplate/grille is attached by four screws passing
through the kickplate into adjustable kickplate brackets.

NOTE: Because drawer panels may extend down in
front of the kickplate/grille, it may be necessary to
remove the bottom drawer to gain access.

To remove the kickplate/grille, extract the four screws
(two on each side), then pull kickplate/grille forward.
(See Figure 7-1)

Drawer Assembly Removal (All Base Units)

There are inverted channels on both sides of the draw­er tubs which rest on telescoping drawer slide assem­blies. A pin at the front of each drawer slide fits into a
hole in the inverted channel of each drawer tub, holding
the drawer assembly in place. (See Figure 7-2)

Figure 7-1. Kickplate/Grille Removal

Kickplate/Grille

Figure 7-2. Drawer Assembly Removal

Hole in Channel

Pin

Drawer Slide

Drawer Assembly

Figure 7-3. Disconnecting Control Cable

Turn collar
counterclockwise
to disconnect

Top drawer has a display wire harness that must
be disconnected during top drawer removal.
Failure to disconnect wire harness could damage
wiring or connections. See top drawer assembly
removal procedure below.

Top Drawer Removal:

1. Pull top drawer assembly open 6 to 10 inches.

2. Lift front of drawer up and off of pins at end of

drawer slides, then push slides back in (See Figure
7-2).

3. Carefully place drawer assembly face down directly

in front of unit.

4. Disconnect control cable at interior left rear of unit

by turning collar on connector counterclockwise and
unplugging pins from socket (See Figure 7-3).

Bottom Drawer Removal:

1. Pull bottom drawer open and lift front up and off of

pins at end of drawer slides (See Figure 7-2).

2. Continue pulling drawer assembly forward and out.

Then, push telescoping drawer slide assemblies
back in.

Component Access/Removal

Integrated

(700-3BASE)

Series

7-4

#3758424 - Revision B - December, 2005

Side Trim Molding Strip Removal (All Base Units)

Side trim molding strips are held in place by two unit-to­cabinet brackets which are attached to the sides of the
cabinet.

NOTE: Removing the drawers first will make this task
easier.

To remove side trim molding strips (See Figure 7-4):

1. Insert a straight-blade screwdriver in channel at
bottom of molding, then gently pull molding forward
until face-frame edge of molding is accessible.

2. Place another straight-blade screwdriver under
face-frame edge and gently work molding away
from face-frame and out of the two unit-to-cabinet
brackets.

Drawer Gasket Removal (All Base Units)

An extruded dart at the back of the drawer gaskets is
pressed into retaining channels that are molded into
drawer liners.

NOTE: Drawer assemblies must be removed from unit
in order to remove and/or install gaskets.

To remove a drawer gasket, simply pull gasket from the
retaining channel (See Figure 7-5).

Figure 7-4. Side Molding Removal

Side

Molding

Strip

Gasket Seat

Unit to
Cabinet
Bracket

Figure 7-5. Gasket Removal

Drawer Gasket

Channel

2

1

Component Access/Removal

Integrated

(700-3BASE)

Series

7-5

#3758424 - Revision B - December, 2005

INTERIOR COSMETIC AND MECHANICAL
COMPONENTS

Control Panel Assembly Removal
(All Base Units)

The control panel assembly is attached inside top draw­er assembly with three screws.

To remove control panel assembly (See Figure 7-6):

1. Extract screws

2. Disconnect display wire harness from control panel

assembly and lift assembly up and out.

Display Wire Harness Removal (All Base Units)

One end of the display wire harness is connected at
interior left rear of upper drawer compartment. The
middle of the display wire harness is attached to the
bottom of upper drawer assembly with tube clamps and
snap rivets. The other end is routed up through a chan­nel in the drawer front, held in place under the control
panel assembly with cable clamp and screw, and
plugged into the control panel assembly.

To remove the display wire harness, the upper drawer
assembly must be extracted and the control panel must
be removed first, then (See Figure 7-7):

1. Extract screw and cable clamp from top of drawer

assembly.

2. Remove cable clamps and snap-rivets from bottom

of the drawer assembly by pushing rivet’s center
push-pin down.

3. Pull wire harness down through channel in drawer

front. (See Figure 7-7)

Light Bulb and Socket Removal (All Base Units)

Base units have two light bulbs: One in ceiling of top
drawer area; One at bottom of divider between drawers.
A rubber flange at the back of the socket holds it in a
bracket.

Light Bulb Removal

(See Figure 7-8):

Turn light bulb counterclockwise to remove it; clockwise
to install it.

Light Socket Removal

(See Figure 7-8):

Pull light socket from hole in bracket, then disconnect
electrical leads.

Figure 7-6. Control Panel Assy Removal

Control Panel Assy

Screws

Figure 7-7. Display Wire Harness Removal

Cable Clamp

Channel

Figure 7-8. Light Bulb / Socket Removal

Light Socket

Light Bulb

Bracket

Snap Rivet

Display

Wire

Harness

Component Access/Removal

Integrated

(700-3BASE)

Series

7-6

#3758424 - Revision B - December, 2005

Mullion Divider Removal (700BC/I-3 Only)

The mullion divider assembly is set between the two
drawer areas.

To remove a mullion divider (See Figure 7-9):

1. Remove display wire harness from wire clip.

2. Reach into lower drawer compartment and push
divider upwards.

Wire Tray Removal (700BR-3, 700BF/I-3 Only)

The wire tray is rests on pegs at the left and at the back
right corner of the duct cover. It is set between the two
drawer areas.

To remove a wire tray (See Figure 7-10):

1. Remove display wire harness from wire clip.

2. Lift right side of wire tray up, then pull it to the right
and out of the compartment.

NOTE: On the model 700BF-3, the screw under the
tray that supports the back right corner may need to be
loosened prior to step 2 above.

Drawer Closer Assembly Removal (All Base Units)

Drawer closer assemblies are located on the right side
wall. Two screws secure each assembly to the wall.

To remove a drawer closer assembly, extract screws
that secure drawer closer to wall and pull drawer closer
assembly from wall. (See Figure 7-11)

Figure 7-9. Mullion Divider Removal (700BCI-3)

Push divider
upwards

Figure 7-11. Drawer Closer Assembly Removal

Drawer Closer Assy

Mullion Divider

Figure 7-10. Wire Tray Removal (700BFI-3 Shown)

Wire Tray

Component Access/Removal

Integrated

(700-3BASE)

Series

7-7

#3758424 - Revision B - December, 2005

Figure 7-12. Drawer Slide Assembly & Pin

Drawer Slide Assy

White Thread Pin

Drawer Slide Assembly Removal (All Base Units)

There are four drawer slide assemblies, two on each
side wall. Drawer slide assemblies are attached to side
walls with Allen-head screws passing through the draw­er slide bracket into blind threaded inserts.

To remove a drawer slide assembly, extract mounting
screws with a 5/32" Allen-head wrench, and pull drawer
slide assembly from wall. (See Figure 7-12)

NOTE: The white thread pins at end of drawer slides
are replaceable. Screw pins counterclockwise to
remove them. (See Figure 7-12)

Refrigerator Fan Baffle and Fan Shroud Removal
(700BC/I-3 Only)

Screws pass though the refrigerator fan shroud and
baffle into screw grommet/stand-offs and a grounding
bracket to secure the shroud and baffle to back wall.

Refrigerator Fan Baffle Removal

(See Figure 7-13):

1. Extracting the two mounting screws.

2. Pull baffle forward.

Refrigerator Fan shroud Removal

(See Figure 7-13):

1. Extracting all mounting screws.

2. Remove nut from display wire harness Methode

connector and pull shroud forward slightly.

3. Remove thermistor from key-hole slot at top

4. Disconnect light switch electrical leads, and pull

shroud out.

Refrigerator Light Switch Removal (700BC/I-3 Only)

To remove the refrigerator light switch, the fan shroud
must be removed first. Then, at back side of fan
shroud, depress tabs on each side of switch while
pushing switch out. (See Figure 7-14)

Fan Baffle

Fan Shroud

Methode
Connector

Nut

Ground Bracket

Stand-off

Figure 7-13. 700BC/I-3 Fan Baffle & Shroud

Thermistor

Light

Switch

Light Switch

Fan Shroud

Figure 7-14. 700BC/I-3 Refrigerator Light Switch

Component Access/Removal

Integrated

(700-3BASE)

Series

7-8

#3758424 - Revision B - December, 2005

Refrigerator Fan Baffle and Cold Plate Removal
(700BR-3 Only)

Screws pass though the refrigerator fan shroud into
rivnuts that are attached to the refrigerator cold plate.

Behind the baffle, Screws pass though the cold plate
into screw grommet/stand-offs. A ground wire passes
through a hole in the cold plate from behind, and is
attached to the front of the cold plate with a screw.
Slots in the side flanges of the cold plate fit over pegs
at the bottom of each false wall.

Refrigerator Fan Baffle Removal

(See Figure 7-15):

1. Extracting baffle mounting screws.

2. Pull baffle forward.

Refrigerator Cold Plate Removal

(See Figure 7-15):

1. Extract grounding screw.

2. Extracting cold plate mounting screws.

3. Lean cold plate forward and lift off of locating pegs.

Refrigerator Fan Motor Removal (700BC/I-3, 700BR­3 Only)

The refrigerator fan motor is held to a bracket with
screws passing through the motor into screw grommets
that are attached to the bracket. The bracket sits
behind the motor, and is attached to the back wall with
screws.

To remove a refrigerator fan motor (See Figure 7-16):

1. Disconnect motor electrical leads.

2. Extract screw and tube clamp holding motor electri­cal leads.

3. Extract fan bracket mounting screws and pull the
fan motor assembly from the unit.

Refrigerator Compartment Thermistor Removal
(700BC/I-3 Only)

The refrigerator compartment thermistor is routed up
through a key-hole slot at top of the fan shroud and
secured to the back wall with a screw.

To remove the refrigerator compartment thermistor (See
Figure 7-17):

1. Extract thermistor mounting screw.

2. Cut thermistor’s wire leads six (6) to twelve (12)
inches (152 mm to 305 mm) from the back wall,
then pull thermistor from compartment.

Figure 7-16. Ref Fan Motor (700BC/I-3 Shown)

Refrigerator
Fan Motor

Figure 7-17. 700BC/I-3 Refrigerator Thermistor

Thermistor

Fan Baffle

Cold Plate

Stand-off

Figure 7-15. 700BR-3 Fan Baffle & Cold Plate

Component Access/Removal

Integrated

(700-3BASE)

Series

7-9

#3758424 - Revision B - December, 2005

Figure 7-18. 700BR-3 Compartment Thermistor,

False Walls and Light Switches

Refrigerator Compartment Thermistor Removal
(700BR-3 Only)

The refrigerator compartment thermistor passes through
a hole in the left false wall from behind, and is attached
to the front of the false wall with a screw.

To remove the refrigerator compartment thermistor (See
Figure 7-18):

1. Extract thermistor mounting screw.

2. Remove nut from display wire harness Methode

connector.

3. Extract the left false wall mounting screws and pull

the false wall forward.

4. Cut thermistor’s wire leads six (6) to twelve (12)

inches (152 mm to 305 mm) from the back wall,
then pull thermistor from compartment.

Refrigerator Light Switch Removal (700BR-3 Only)

The refrigerator light switches are inserted into square
holes in the right false wall.

To remove a refrigerator light switch (See Figure 7-18):

1. Extract the right false wall mounting screws and pull

the false wall forward.

2. Disconnect switch electrical leads.

3. At back side of false wall, depress tabs on each

side of switch while pushing switch out.

Refrigerator Evaporator Thermistor Removal
(700BR-3 Only)

The refrigerator evaporator thermistor is inserted into
the third opening from the top in the evaporator fins left
side, extending approximately to the center of the evap­orator.

To remove a evaporator thermistor, the left false wall
and cold plate must be removed first, then (See Figure
7-19):

1. Pull thermistor from evaporator fins.

2. Cut thermistor’s wire leads six (6) to twelve (12)

inches from the back wall, then pull thermistor from
compartment.

Left False Wall Right False Wall

Thermistor

Nut

Switches

Figure 7-19. 700BR Evaporator Thermistor)

Evaporator Thermistor

Component Access/Removal

Integrated

(700-3BASE)

Series

7-10

#3758424 - Revision B - December, 2005

Figure 7-21. Sump Cover (700BCI-3/700BFI-3)

Remove screws

Sump Cover

Figure 7-20. Icemaker Removal (700BCI-3/700BFI-3)

Icemaker Assembly

Mounting Screw

Icemaker Assembly Removal
(700BC/I-3, 700BFI-3 Only)

The icemaker assembly is attached at right rear of
lower compartment with two screws at top and one
screw at bottom that pass through the air duct into
screw grommet/stand-offs to hold assembly in place.

To remove the icemaker assembly (See Figure 7-20):

1. Extract bottom icemaker mounting screw.

2. Extract two top icemaker mounting screws.

3. Lower assembly down and disconnect wire harness
from head of icemaker, then pull icemaker assem­bly out.

Sump Cover Removal (700BC/I-3, 700BFI-3 Only)

The sump cover assembly is held in place with three
screws at front that secure it to the floor of the unit. At
the rear, three screws pass through the cover into a
flange at the bottom of the rear duct.

To remove the sump cover assembly (See Figure 7-21):

1. If icemaker is present, remove it first.

2. Extract screws at front and back of sump cover
assembly.

3. Slide sump cover assembly forward and lift up.

Component Access/Removal

Integrated

(700-3BASE)

Series

7-11

#3758424 - Revision B - December, 2005

Lower Air Duct Removal (700BC/I-3 Only)

Screws pass though the lower air duct into screw grom­met/stand-offs and a grounding bracket to secure the
duct to the back wall.

NOTE: Both lower drawer slides must be removed first.

To remove the lower air duct (See Figure 7-22):

1. Extract all lower air duct mounting screws.

2. Pull duct forward slightly.

3. Pull icemaker wire leads from key-hole slot at right.

4. Disconnect light switch and icemaker switch electri-

cal leads, and pull duct out.

Air Baffle Control Assembly Removal
(700BC/I-3 Only)

The air baffle control sets in a recessed area of the baf­fle mount and a piece of tape holds the baffle control in
place. Holes in the baffle mount fit over screw grom­met/stand-offs in the back wall and when the lower air
duct is installed, it captivates the air baffle assembly.

To remove the air baffle control asembly (See Figure 7-

22):

1. Remove lower air duct.

2. Unplug the wire leads from the baffle control.

3. Pull air baffle control assembly off of screw grom-

met/stand-offs.

Freezer Compartment Thermistor Removal
(700BC/I-3 Only)

The freezer compartment thermistor is secured to the
back wall with a screw.

To remove the freezer compartment thermistor, the
lower air duct will need to be removed first, then (See
Figure 7-22):

1. Extract thermistor mounting screw.

2. Cut thermistor’s wire leads six (6) to twelve (12)

inches (152 mm to 305 mm) from the back wall,
then pull thermistor from compartment.

Freezer Light Switch and Icemaker Switch Removal
(700BC/I-3 Only)

To remove the freezer light switch or icemaker switch,
the lower air duct must be removed first. Then, at back
side of air duct, depress tabs on each side of switch
while pushing switch out. (See Figure 7-23)

Lower Duct

Thermistor

Ground Bracket

Baffle Mount

Figure 7-22. 700BC/I-3 Lower Duct, Baffle Control

Assembly and Freezer Compartment Thermistor

Baffle Control

Light Switch

Air Duct

Figure 7-23. 700BC/I-3 Fre Light & IM Switches

Icemaker Switch

Component Access/Removal

Integrated

(700-3BASE)

Series

7-12

#3758424 - Revision B - December, 2005

Figure 7-24. 700BF/I-3 Compartment Thermistor, Air

Ducts and Light & Fan Switches

Left Air Duct Main Air Duct

Thermistor

Nut

Switches

Freezer Light Switchs and Icemaker Switch
Removal (700BF/I-3 Only)

The light switches and fan switch are inserted into
square holes in the main air duct.

NOTE: The sump cover assembly must be removed
first.

To remove a switch (See Figure 7-24):

1. Extract the main air duct mounting screws and pull
duct to the left, then forward.

2. Disconnect switch electrical leads.

3. At back side of duct, depress tabs on each side of
switch while pushing switch out.

Freezer Compartment Thermistor Removal
(700BF/I-3 Only)

The freezer compartment thermistor passes through a
hole in the left air duct from behind, and is attached to
the left wall of the compartment with a screw.

To remove the freezer compartment thermistor (See
Figure 7-24):

1. Extract thermistor mounting screw.

2. Remove nut from display wire harness Methode
connector.

3. Extract the left air duct mounting screws and pull
the duct forward.

4. Cut thermistor’s wire leads six (6) to twelve (12)
inches (152 mm to 305 mm) from the back wall,
then pull thermistor from compartment.

Component Access/Removal

Integrated

(700-3BASE)

Series

7-13

#3758424 - Revision B - December, 2005

Evaporator Thermistor Removal
(700BC/I-3, 700BFI-3 Only)

A cable tie holds the evaporator thermistor to the third
elbow down on the right side of the evaporator.

To remove the evaporator thermistor (See Figure 7-25):

1. Cut cable tie.

2. Cut thermistor wire leads, and lift the thermistor out

of the sump area.

NOTE: There may be a Y-harness between the ther­mistor electrical connections, with wires exiting through
the heat exchanger hole in sump. This is for factory
test purposes and can be removed or bypassed.

Defrost Terminator Removal
(700BC/I-3, 700BF/I-3 Only)

The defrost terminator is attached to the sixth elbow
down on the right side of the evaporator.

To remove the defrost terminator (See Figure 7-26):

1. Disconnect terminator electrical leads.

2. Disengage terminator clip from return elbow and lift

terminator out of the sump area.

NOTE: When reinstalling defrost terminator, it must be
attached to the the same elbow (sixth down) it was
removed from. Failure to do so could cause shortened
defrost times which will lead to incomplete defrost.

Defrost Heater Removal
(700BC/I-3, 700BF/I-3 Only)

The defrost heater is pressed into evaporator fins at
front. Heater clips then hook from one evaporator tube
to another, over heater.

To remove the defrost heater (See Figure 7-27):

1. Disconnect heater electrical leads.

2. Disengage heater clips from evaporator using nee-

dle-nose pliers.

3. Pull heater from evaporator fins, and lift heater out

of the sump area.

NOTE: When installing heater, make sure it is posi­tioned as far left as possible. Installing heater too close
to terminator could cause shortened defrost times which
will lead to incomplete defrost.

Figure 7-25.

700BCI-3 & 700BFI-3 Evaporator Thermistor

Figure 7-26.

700BCI-3 & 700BFI-3 Defrost Terminator Removal

Evaporator Thermistor

Thermistor Electrical Leads

Defrost Terminator

Terminator Electrical Leads

Figure 7-27.

700BCI-3 & 700BFI-3 Defrost Heater Removal

Defrost Heater

Heater Electrical Leads

Heater Clip

Component Access/Removal

Integrated

(700-3BASE)

Series

7-14

#3758424 - Revision B - December, 2005

Figure 7-30.

700BCI-3 & 700BFI-3 Evaporator Fan Assembly

Figure 7-29. Top View of 700BCI-3 & 700BFI-3

Evaporator Fan Assembly in Sump

Fan Shroud

Evaporator Fan Assembly

Control Board Assembly

Figure 7-28.

700BCI-3 & 700BFI-3 Control Board Assembly

Control Board Assembly Removal
(700BC/I-3, 700BFI-3 Only)

The control board assembly sets in the right side of
sump. Flanges and grooves on the sides of control
board assembly help to locate it.

To remove the control board assembly (See Figure 7-

28):

1. First remove rear duct(s).

2. Unplug all electrical leads from the control board
assembly and lift the assembly from the sump.

Evaporator Fan Assembly Removal
(700BC/I-3, 700BFI-3 Only)

The side flanges of the evaporator fan assembly slide
down into grooves in the fan shroud. The bottom of the
evaporator fan assembly sits on a flange at the bottom
of the fan shroud. (See Figure 7-29)

To remove the evaporator fan assembly (See Figure 7­30:

1. First remove rear duct(s).

2. Unplug fan assembly electrical leads and lift assem­bly up out of the grooves in the fan shroud.

NOTE: Do not attempt to remove the fan assembly
without removing the back duct. Doing so will deform
the back duct and cause air leaks around the air baffle.

Component Access/Removal

Integrated

(700-3BASE)

Series

7-15

#3758424 - Revision B - December, 2005

COMPRESSOR AREA MECHANICAL
COMPONENTS

Main Control Board (700BR-3 Only)

The main control board is attached to the inside of the
control housing assembly with screws. The control
housing assembly is attached to the unit tray at the
front right corner.

To remove the main control board, the kickplate/grill will
need to be removed first. Now, extract the two screws
that secure the unit tray to the unit and slide the tray
out (See Figure 7-31), then (See Figure 7-32).

1. Extract screws from control housing cover.

2. Disconnect all electrical lads from main control

board.

3. Extract screws which are holding control baord in

control housing and lift control board out of housing.

Figure 7-32. 700BR-3 Main Control Board

Figure 7-31. Sliding Unit Tray Out

Screw

Screw

Control Housing
Cover

Control Housing

Main Control
Board

Component Access/Removal

Integrated

(700-3BASE)

Series

7-16

#3758424 - Revision B - December, 2005

Icemaker Water Valve Removal
(700BCI-3, 700BFI-3 Only, Prior to Serial #2421189)

The icemaker water valve assembly is attached to the
valve bracket, located on right side of compressor area.
A screw passing through a key-hole slot in valve
assembly secures the valve to the valve bracket.

NOTE: Before accessing the icemaker water valve,
turn off the water supply to the unit.

To remove the water valve, the kickplate/grill will need
to be removed first. Then, extract the two screws that
secure the unit tray to the unit and slide the tray out
(See Figure 7-33), then (See Figures 7-34 and 7-35).

1. With a wrench, disconnect brass compression fitting
which holds water supply line to water inlet stub.

2. With a Phillips screwdriver, loosen screw that
secures valve assembly to valve bracket.

3. Grab water inlet stub and lift up so head of screw
lines up with large section of key-hole slot.

4. Pull valve assembly forward until screw clears key­hole slot, then lower assembly down until valve
body clears valve bracket and pull assembly out
from compressor area.

5. Unplug valve electrical leads.

6. Disconnect outlet tube plastic compression fitting
with a wrench, and lift water valve up.

Figure 7-34. Water Valve Removal

Figure 7-35. Water Valve Removal

Key-Hole Slot

Water Valve

Inlet Stub

Compression
Fittings

Outlet Tube

Electrical Leads

Screw

Water Valve

Figure 7-33. Sliding Unit Tray Out

Screw

Screw

Component Access/Removal

Integrated

(700-3BASE)

Series

7-17

#3758424 - Revision B - December, 2005

Icemaker Water Valve Removal
(700BCI-3, 700BFI-3 Only, Starting w/ith Serial
#2421189)

The icemaker water valve assembly is located at the
right side of the compressor area, and is attached to
the valve bracket with screws.

NOTE: Before accessing the icemaker water valve,
turn off the water supply to the unit.

To remove the water valve, the kickplate/grill will need
to be removed first. Then, extract the two screws that
secure the unit tray to the unit and slide the tray out
(See Figure 7-36), then (See Figure 7-37).

1. Disconnect inlet water tube from the valve inlet by

pushing collar around tube toward valve, while
pulling inlet water tube away from valve.

2. With a Phillips screwdriver, remove screws from

valve bracket.

3. Lower valve and pull forward.

4. Unplug valve electrical leads.

5. Disconnect outlet tube from the valve outlet by

pushing collar around tube toward valve, while
pulling outlet water tube away from valve.

Figure 7-36. Sliding Unit Tray Out

Screw

Screw

Figure 7-37. Water Valve Removal

Inlet tube

Outlet tube

Collar

Component Access/Removal

Integrated

(700-3BASE)

Series

7-18

#3758424 - Revision B - December, 2005

Condenser Fan Assembly Removal
(All Base Units)

The condenser fan shroud sets on pegs protruding from
unit tray, with two screws at top securing it to the con­denser. The condenser fan is mounted to the condens­er fan shroud with three fan mounting brackets that are
hooked into grommeted holes in the fan shroud.
Screws passing through these brackets secure the fan
motor to the brackets. The condenser fan blade is held
onto the fan motor shaft with a nut.

To remove the condenser fan components, the kick­plate/grill will need to be removed first. Then, extract
the two screws that secure the unit tray to the unit and
slide the tray out (See Figure 7-38).

NOTE: It may be necessary to disconnect compressor
electrical leads in order to pull tray out far enough to
access condenser fan assembly.

Condenser Fan

Assembly Removal (See Figure 7-39):

1. Disconnect condenser fan motor electrical leads.

2. Extract the screws at top of fan shroud and lift
shroud and motor up off pegs at the bottom.

Condenser Fan Motor Removal

(See Figure 7-40):

1. Extract screws securing motor to brackets.

2. Unhook brackets from grommeted holes in con­denser fan shroud.

Condenser Fan Blade Removal

(See Figure 7-40):

1. Grab fan blade and motor.

2. Turning nut counterclockwise.

3. Pull blade from motor shaft.

Figure 7-39. Condenser Fan Shroud Removal

Figure 7-40. Condenser Fan Assembly

Figure 7-38. Sliding Unit Tray Out

Screw

Screw

Condenser Fan Shroud

Fan Electrical Leads

Screw

Screw

Condenser Fan Shroud

Motor

Neoprene Silencer

Blade

Flat Nut

Bracket
(1 of 3)

Screw
(1 of 3)

Component Access/Removal

Integrated

(700-3BASE)

Series

7-19

#3758424 - Revision B - December, 2005

Drain Tube Heater Removal
(700BC/I-3, 700BF/I-3 Only)

The electrical connections for the drain tube heater are
located at the back of the compressor area with the
braided heater leads entering the sump drain tube from
the compressor area.

To remove the drain tube heater, the kickplate/grill will
need to be removed first. Then, extract the two screws
that secure the unit tray to the unit and slide the tray
out (See Figure 7-41).

NOTE: It may be necessary to disconnect the com­pressor electrical leads in order to pull the tray out far
enough to access the drain tube heater.

Unplug the drain tube heater electrical leads and pull
the heater from the drain tube (See Figure 7-42).

NOTE: When installing the replacement drain tube
heater, push the braided heater leads into the sump
drain tube until splices are 2-1/2” from drain tube outlet
(See Figure 7-42). Also, it is recommended to remove
the sump cover to make sure the drain tube heater has
slid under the evaporator.

Figure 7-42. Drain Tube Heater in Compressor Area

Figure 7-41. Sliding Unit Tray Out

Screw

Screw

Drain Tube

Heater Electrical

Connection

Heater Leads
In Drain Tube

Splices

2-1/2”

Component Access/Removal

Integrated

(700-3BASE)

Series

7-20

#3758424 - Revision B - December, 2005

SEALED SYSTEM COMPONENTS

NOTE: When entering the sealed system, always
use solder-on process valves. Do NOT

use bolt-on

process valves as they are prone to leak.

NOTE: Whenever servicing the sealed system, the
high-side filter-drier must

be replaced.

High-Side Filter-Drier Removal (All Base Units)

The high-side filter-drier is located to the right of the
condenser and is attached to the condenser outlet tube
with a cable tie.

NOTE: Before attempting to remove a filter drier, evac­uate refrigerant from sealed system.

To remove the filter-drier, the kickplate/grill will need to
be removed first. Then, extract the two screws that
secure the unit tray to the unit and slide the tray out
(See Figure 7-43).

NOTE: It may be necessary to disconnect the com­pressor electrical leads in order to pull the tray out far
enough to access the filter-driers.

To Remove the filter drier (See Figure 7-44):

1. Cut cable tie securing filter-drier to bracket, or con­denser outlet tube.

2. With the edge of a file, score a line around capillary
tube approximately one inch (25 mm) from filter­drier outlet

3. Fatigue capillary tube at line just scored until it sep­arates.

4. With a tube cutter, cut inlet tube approximately one
inch (25 mm) from filter-drier.

NOTE: Sweating the joints apart is not recommended
as this may induce moisture into the sealed system and
could cause a solder restriction in the capillary tube.

NOTE: Check the end of the remaining capillary tube
for internal burrs. If burrs exist, rescore a line around
the capillary tube approximately one inch from the end
and fatigue the capillary tube at this new line until it
separates.

NOTE: When installing the replacement filter-drier,
insert the capillary tube until it touches the screen, then
pull the capillary tube approximately 3/8” away from the
screen before brazing (See Figure 7-45). When
installing a new filter-drier, be sure to thoroughly clean
the tubing before brazing.

Figure 7-43. Sliding Unit Tray Out

Figure 7-44. Filter-Drier Removal

Figure 7-45. Filter-Drier Cut-Away View

Cut cable tie

Score a line 1” from drier

Cut 1” from drier

Capillary Tube

Screen inside
Filter-Drier

Screw

Screw

3/8”
(9.5 mm)

3/8"

Component Access/Removal

Integrated

(700-3BASE)

Series

7-21

#3758424 - Revision B - December, 2005

Figure 7-46. Sliding Unit Tray Out

Screw

Screw

Compressor Removal (All Base Units)

The compressor has four rubber compressor grommets
inserted into its base. Cylindrical metal spacers are
placed over threaded studs that are press fit to the unit
tray. The compressor grommets fit over the spacers
and a washer sets on top of the grommet and spacer.
A nut is then installed on the threaded stud and tight­ened down on the washer and spacer.

NOTE: Before attempting to remove a compressor,
evacuate the refrigerant from the sealed system.

To remove the compressor, the kickplate/grill will need
to be removed first. Then, extract the two screws that
secure the unit tray to the unit and slide the tray out
(See Figure 7-46), then (See Figures 7-48 and 7-48).

1. Use a flat-blade screwdriver to remove compressor

electrical cover

2. Disconnect electrical leads from compressor.

3. Cut compressor inlet and outlet tubing with a tube

cutter, approximately one inch (25 mm) from com­pressor ports.

4. Extract nuts and washers from threaded studs.

5. Lift compressor off of threaded studs.

NOTE: Sweating the joints apart is not recommended
as this may induce moisture into the sealed system.

NOTE: The high-side filter-drier must be replaced
whenever servicing the sealed system.

NOTE: When installing a compressor, be sure to thor­oughly clean the tubing before brazing.

Figure 7-47. Removing Compressor Electrical Cap

Figure 7-48. Compressor Removal

Pry up with screwdriver

Cut here

Compressor

Compressor

Remove nuts and washers

Component Access/Removal

Integrated

(700-3BASE)

Series

7-22

#3758424 - Revision B - December, 2005

Condenser Removal (All Base Units)

The condenser is secured to the unit tray by four rivets
that pass up through the unit tray into the condenser
side brackets.

NOTE: Before attempting to remove the condenser,
evacuate the refrigerant from the sealed system.

To remove the condenser, the kickplate/grill will need to
be removed first. Then, extract the two screws that
secure the unit tray to the unit and slide the tray out
(See Figure 7-49).

NOTE: It will be necessary to disconnect the compres­sor electrical leads in order to pull the tray out far
enough to remove the condenser.

To Remove the condenser (See Figure 7-50):

1. Cut condenser inlet and outlet tubes to and from
the condenser, approximately one inch (25 mm)
from weld joints.

2. Prop front of unit tray up.

3. Drill out rivets securing condenser to tray.

NOTE: Sweating the joints apart is not recommended
as this may induce moisture into the sealed system.

NOTE: The high-side filter-drier must be replaced
whenever replacing the condenser.

NOTE: When installing the replacement condenser, be
sure to thoroughly clean the tubing before brazing.

Figure 7-50. Condenser Removal

Tilt front of unit tray up
and drill out four rivets.
(2 each side)

Condenser

Figure 7-49. Sliding Unit Tray Out

Screw

Screw

Component Access/Removal

Integrated

(700-3BASE)

Series

7-23

#3758424 - Revision B - December, 2005

Evaporator / Heat Exchanger Assembly Removal
(700BC/I-3, 700BF/I-3 Only)

The evaporator / heat exchanger assembly was
installed into the unit by inserting the heat exchanger
down through the hole at top left front of sump. As the
heat exchanger is fed through the hole, the side brack­ets of the evaporator slide down into channels in sump
and control board enclosure. Tubing insulation is then
installed over the heat exchanger before it is coiled and
attached to the back of unit tray area with a P-clamp
and screw. Then, the heat exchanger is attached to the
compressor and filter-drier.

NOTE: Before attempting to remove the evaporator /
heat exchanger assembly, evacuate the refrigerant from
the sealed system.

To remove the evaporator / heat exchanger assembly,
the kickplate/grill will need to be removed first. Then,
extract the two screws that secure the unit tray to the
unit and slide the tray out (See Figure 7-49).

NOTE: It will be necessary to disconnect the compres­sor electrical leads in order to pull the tray out far
enough to remove the heat exchanger.

To remove the evaporator/heat exchanger assembly

(See Figures 7-51, 7-52 and 7-53):

1. Since evaporator/heat exchanger assembly being

removed will be scrapped, use a tin snips or similar
tool to cut heat exchanger near hole in sump.

2. Disconnect all electrical leads of components

attached to evaporator and lift evaporator from
sump.

NOTE: There may be a Y-harness between the ther­mistor electrical connections, with wires exiting through
the heat exchanger hole in sump. This is for factory
test purposes and can be removed or bypassed.

3. Cut suction line approximately 2” (51 mm) from

compressor.

4. Since filter-drier will be replaced, cut drier inlet tube

approximately one inch (25 mm) from drier, leaving
capillary tube attached.

5. Extract screw holding heat exchanger and P-clamp

to rear of unit tray area.

6. Pull heat exchanger down through hole at top left

front of sump and out of unit tray area.

NOTE: When installing replacement evaporator / heat
exchanger assembly, be sure to thoroughly clean tubing
before brazing.

NOTE: After installing replacement evaporator / heat
exchanger assembly, apply a bead of silicone around
heat exchanger where it exits through hole in sump.

Figure 7-52. Cut Suction line at compressor

Cut here

Compressor

Figure 7-53. Cut Inlet at Filter-Drier

Cut cable tie

Cut 1” from drier

Figure 7-51. Cut Suction & Capillary Tube at Evap.

In sump, cut tubing with tin snips or similar tool.

Leave capillary tube
attached to drier

Component Access/Removal

Integrated

(700-3BASE)

Series

7-24

#3758424 - Revision B - December, 2005

Evaporator Removal (700BR-3 Only)

The evaporator is attached to the rear walls of the com­partments with screws.

NOTE: Before attempting to remove the evaporator,
evacuate the refrigerant from the sealed system.

To remove the refrigerator evaporator (See Figure 7-

54):

1. Extract screws which hold evaporator to rear wall
of compartment.

2. Pull and rotate evaporator so heat exchanger is
accessible.

3. With a file, score a line around capillary tube, 1” (25
mm) or less from evaporator inlet, then fatigue cap­illary tube at this line until it separates.

4. With a tube-cutter, cut evaporator outlet 1” (25 mm)
or less from suction line connection point.

NOTE: It is not recommended to sweat tubing apart.
Doing so will induce moisture into the sealed system.

NOTE: After capillary tube is fatigue until it separates,
check tubing for internal burrs. If burrs exist, repeat
step 3 above.

NOTE: Sweating the joints apart is not recommended
as this may induce moisture into the sealed system and
could cause a solder restriction in the capillary tube.

NOTE: When installing replacement evaporator, be
sure to thoroughly clean tubing before brazing.

Figure 7-54. 700 BR-3 Refrigerator Evaporator

Cut

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-1

#3758424 - Revision B - December, 2005

SECTION 8

TROUBLESHOOTING

GUIDES

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-2

#3758424 - Revision B - December, 2005

TROUBLESHOOTING GUIDES

This section of the manual contains:

• The Error Code Table and the Error Code Troubleshooting Guide.

• The General Troubleshooting Guide, which covers all problems that a 700-3 Series Base unit may experience.

• The Membrane Switch/Ribbon Cable Test Procedures, used to determine if a control panel assembly is defective.

HOW TO USE THE ERROR CODE TROUBLESHOOTING GUIDE

Error Codes indicate problems registered by specific components. If error codes are registered, they will appear
before temperature readings while in Diagnostic Mode.

NOTE: If Error Codes appear with a flashing “SERVICE” annunciator prior to initiating Diagnostic Mode, the unit
experienced excessive compressor run condition that may or may not be associated with the Error Codes displayed.

To initiate Diagnostic Mode, press and hold either

COLDER key, then press the UNIT ON/OFF key, then release
both keys. Now, check to see if Error Codes are present, being sure to toggle through all error and temperature
readings by pressing either COLDER key or either WARMER key. (See Error Code Table Below)

If Error Codes appear during Diagnostic Mode, follow the Error Code Troubleshooting Guide on the following page.
The left column of the troubleshooting guide lists the error codes. The information in the right column explains what
tests to perform and/or what action to take to correct the error.

NOTE: If error codes are observed in diagnostic mode, a non-flashing SERVICE annunciator will appear on the
LCD when Diagnostic Mode ends, indicating error codes are still stored. Error Codes must be cleared from the elec­tronic control memory manually. To clear the non-flashing SERVICE annunciator and the error codes, the problem
must be corrected and the unit must be ON. Then, press and hold the Door Ajar Alarm Bell ON/OFF key for 15 sec­onds. The control will emit a short “beep” when the SERVICE annunciator and error codes are cleared.

Error Code Table

CODE INDICATION

05 Refrig. cabinet thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s
07 Freezer cabinet thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s
08 Freezer evaporator thermistor read open or shorted for 10+ seconds, or repeatedly read erratic temp’s
20 Defrost under-heat with no voltage feedback through Gray/White wire at defrost start
21 Defrost overheat
22 No voltage feedback through Gray/White wire at defrost start
23 Defrost overheat with no voltage feedback through Gray/White wire at defrost start
24 Defrost under-heat
30 Excessive Icemaker Water Valve Solenoid Activation (Exceeded 15 Seconds)
40 Excessive Freezer Compressor Run
50 Excessive Refrigerator Compressor Run - 700BCI-3 (Excessive Refrigerator Fan Run - 700BR-3)

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-3

#3758424 - Revision B - December, 2005

EC TEST / ACTION

05

06

07

08

A. If “EE” for refrigerator compartment was displayed and “SERVICE” flashing, check the following:

1. Thermistor electrical connections and continuity from thermistor to J5 on control board. Reconnect / repair.

2. Resistance of thermistor - 30,000 to 33,000 ohms at 32°F. Replace if defective.

B. If “EE” for refrigerator compartment was NOT

displayed, problem is intermittent thermistor error:

1. Door not closing properly. Correct door closing problem.

2. Fan switch, light switch, wiring & electrical connections. Repair wiring / connections or replace switch.

3. Thermistor electrical connections and continuity from thermistor to J5 on control board. Reconnect / repair.

4. Resistance of thermistor - 30,000 to 33,000 ohms at 32°F. Replace if defective.

C. If “EC 05” and “SERVICE” were flashing before initiating diagnostic mode, unit also experienced excessive com-

pressor run condition that may or may not be associated with the “05” Error Code. See problem A in General
Troubleshooting Guide.

A. Initiate Diagnostic Mode. If “EE” is displayed for refrigerator evaporator thermistor, check the following:

1. Thermistor electrical connections and continuity from thermistor to J5 on control board. Reconnect / repair.

2. Resistance of thermistor - 30,000 to 33,000 ohms at 32°F. Replace if defective.

B. Initiate Diagnostic Mode. If “EE” is NOT

displayed for refrigerator evaporator thermistor, problem is intermittent:

1. Door not closing properly. Correct door closing problem.

2. Fan switch, light switch, wiring & electrical connections. Repair wiring / connections or replace switch.

3. Thermistor electrical connections and continuity from thermistor to J5 on control board. Reconnect / repair.

4. Resistance of thermistor - 30,000 to 33,000 ohms at 32°F. Replace if defective.

C. If “EC 06” and “SERVICE” were flashing before initiating diagnostic mode, unit also experienced excessive com-

pressor run condition that may or may not be associated with the “06” Error Code. See problem A in General
Troubleshooting Guide.

A. If “EE” for freezer compartment was displayed and “SERVICE” flashing, check the following:

1. Thermistor electrical connections and continuity from thermistor to J5 on control board. Reconnect / repair.

2. Resistance of thermistor - 30,000 to 33,000 ohms at 32°F. Replace if defective.

B. If “EE” for freezer compartment was NOT

displayed, problem is intermittent thermistor error or caused by over-heat-

ing (above 116°F), check the following:

1. Door not closing properly. Correct door closing problem.

2. Fan switch, light switch, wiring & electrical connections. Repair wiring / connections or replace switch.

3. Proper mounting and location of freezer compartment thermistor. Remount correctly.

4. Defrost terminator. Replace if defective.

5. Thermistor electrical connections and continuity from thermistor to J5 on control board. Reconnect / repair.

6. Resistance of thermistor -r 30,000 to 33,000 ohms at 32°F. Replace if defective.

C. If “EC 07” and “SERVICE” were flashing before initiating diagnostic mode, unit also experienced excessive com-

pressor run condition that may or may not be associated with the “07” Error Code. See problem A in General
Troubleshooting Guide.

A. Initiate Diagnostic Mode. If “EE” is displayed for freezer evaporator thermistor, check the following:

1. Thermistor electrical connections and continuity from thermistor to J5 on control board. Reconnect / repair.

2. Resistance of thermistor - 30,000 to 33,000 ohms at 32°F. Replace if defective.

B. Initiate Diagnostic Mode. If “EE” is NOT

displayed for freezer evaporator thermistor, problem is intermittent thermis-

tor error or caused by over-heating (above 116°F), check the following:

1. Door not closing properly. Correct door closing problem.

2. Fan switch, light switch, wiring & electrical connections. Repair wiring / connections or replace switch.

3. Proper mounting and location of freezer evaporator thermistor. Remount correctly.

4. Proper operation of defrost terminator (Cut-in 30°F/Cut-out 70°F). Replace if defective.

5. Thermistor electrical connections and continuity from thermistor to J5 on control board. Reconnect / repair.

6. Resistance of thermistor - 30,000 to 33,000 ohms at 32°F. Replace if defective.

C. If “EC 08” and “SERVICE” were flashing before initiating diagnostic mode, unit also experienced excessive com-

pressor run condition that may or may not be associated with the “08” Error Code. See problem A in General
Troubleshooting Guide.

ERROR CODE TROUBLESHOOTING GUIDE

NOTE: After repairs, always clear Error Codes by pressing Bell ON/OFF key for 15 seconds.

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-4

#3758424 - Revision B - December, 2005

EC TEST / ACTION

20

21

22

23

24

30

A. With cold evap. (< 10°F), initiate Manual Defrost, then initiate Diagnostic Mode (press UNIT ON/OFF key every 20

seconds to keep in Diagnostic Mode) and observe evap. temp. If temp. exceeds 45°F and defrost lasts longer then
5 minutes, error code is false. Clear error code. If error code is not false:

1. Check continuity of Grey/White wire from defrost heater to J2-3 on control board. Reconnect / repair
Grey/White wire.

2. While in defrost, check for 115V AC at P2 on control board. If no voltage, replace board.

3. Check continuity of Blue wire from defrost terminator to P2 on control board. Reconnect / repair Blue wire.

4. Check resistance of defrost heater (see wire diagram for proper resistance). Replace heater if defective.

5. Check electrical connections and operation of defrost terminator (Cut-in 30°F/Cut-out 70°F). Reconnect /
repair or replace terminator.

6. Reference wiring diagram to identify components in same White wire circuit as defrost heater. Check all White
wire electrical connections and continuity from defrost heater to P4 on control board.

A. With cold evap. (< 10°F), initiate Manual Defrost, then initiate Diagnostic Mode (press UNIT ON/OFF key every 20

seconds to keep in Diagnostic Mode) and observe evap. temp. If temp. does not

exceed 105°F, error code is false.

Clear error code. If error code is not false:

1. Check Blue wire connection at control board (P2). If connected to wrong pin, connect correctly.

2. Check Grey/White wire connection at control board (J2-3). if connected wrong or bad connection, reconnect /
repair.

3. Check for proper mounting & location of evap. thermistor, defrost heater & terminator. Remount correctly.

4. Check for electrical short of Blue wire to another circuit. Repair Blue wire &/or electrical connections.

5. Check operation of defrost terminator (Cut-in 30°F / Cut-out 70°F). Replace if defective.

A. With cold evap. (< 10°F), initiate Manual Defrost. If compressor starts 5 minutes (10 minutes in 700TF/I-2V) after

defrost is initiated, check Grey/White wire and continuity from defrost heater to J2-3 on control board. Reconnect /
repair Grey/White wire.

A. With cold evap. (< 10°F), initiate Manual Defrost. If compressor starts 5 minutes (10 minutes in 700TF/I-2V) after

defrost is initiated, check Grey/White wire connections and continuity from defrost heater to J2-3 on control board.

Reconnect / repair Grey/White wire.
B. Check for proper mounting and location of evap. thermistor, defrost heater & terminator. Remount correctly.
C. Check Blue wire connection at control board (P2). If connected to wrong pin, connect correctly.
D Check for electrical short of Blue wire to another circuit. Repair Blue wire &/or electrical connections.

A. With cold evap. (< 10°F), initiate Manual Defrost, then initiate Diagnostic Mode (press UNIT ON/OFF key every 20

seconds to keep in Diagnostic Mode) and observe evap. temp. If temp. exceeds 45°F, error code is false. Clear

error code. If error code is not false:

1. Check Blue wire connection at control board (P2). If connected to wrong pin, connect correctly.

2. Verify proper location of Grey/White wire at control board (J2-3). if connected wrong or bad connection, recon­nect / repair.

3. Check for proper mounting & location of evap. thermistor, defrost heater & terminator. Remount correctly.

A. Check for jammed cube in icemaker.
B. Reference wiring diagram to identify components in same White wire circuit as water valve solenoid. Check all

White wire electrical connections and continuity from water valve solenoid to P4 on control board.

ERROR CODE TROUBLESHOOTING GUIDE

NOTE: After repairs, always clear Error Codes by pressing Bell ON/OFF key for 15 seconds.

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-5

#3758424 - Revision B - December, 2005

EC TEST / ACTION

40

50

A. If Error Code 07, 20, 21, 22, 23, or 24 is also displayed during Diagnostic Mode, see Test/Actions under that code.
B. Check for obstructions to freezer drawer closing, including drawer closer position. Remove obstruction/Trip drawer

closer forward.

C. Check cleanliness of condenser. Clean if needed.
D. Check for obstruction to condenser fan blade or loose fan blade. Remove obstruction/Tighten Blade.
E. With unit running, check for 115 V AC from compressor to condenser fan. Repair defective wiring or replace defec-

tive motor.

F. Check resistance of freezer compartment thermistor - 30,000 to 33,000 ohms at 32°F. Replace if defective.
G. Check evaporator fan blade position and for obstructions. Reposition if incorrect/Remove obstruction.
H. With unit running and light switches depressed:

1. Check for 115 V AC form J3-7 to light switches. Repair wiring/Replace defective switch.

2. Check for 115 V AC form J3-1 to evaporator fan motor. Repair wiring/Replace defective motor.

3. Check for 115 V AC form P1 to compressor. Repair wiring if defective.

I. Check sealed system for leaks, restrictions or inefficient compressor.

A. If Error Code 07, 20, 21, 22, 23, 24 or 40 is also displayed during Diagnostic Mode, see Test/Actions under that

code.

B. Check for obstructions to refrigerator drawer closing, including drawer closer position. Remove obstruction/Trip

drawer closer forward.

C. Check resistance of refrigerator compartment thermistor - 30,000 to 33,000 ohms at 32°F. Replace if defective.
D. Check refrigerator compartment fan blade position and for obstructions. Reposition if incorrect/Remove obstruction.
E. With unit running and light switches depressed:

1. Check for 115 V AC form J3-5 to evaporator fan motor. Repair wiring/Replace defective motor.

F. Check air baffle control operation (700BC/I-3 Only). Repair wiring/Replace if defective.
G. Check sealed system for leaks, restrictions or inefficient compressor.

ERROR CODE TROUBLESHOOTING GUIDE

NOTE: After repairs, always clear Error Codes by pressing Bell ON/OFF key for 15 seconds.

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-6

#3758424 - Revision B - December, 2005

HOW TO USE THE GENERAL TROUBLESHOOTING GUIDE

• The table on page 8-6 indicate how the General Trouble Shooting Guide is arranged.

• Identify the description of the problem that the unit is experiencing from the table.

• To the left of the problem description is a letter.

• Locate that letter in the left column of the General Troubleshooting Guide.

• The center column will identify the possible causes for the problem.

• The information in the right column explains the tests to perform and/or action to take to correct the problem.

• If the unit is experiencing temperature problems, refer to the instructions below before beginning troubleshooting.

For Temperature Problems

1. Begin troubleshooting by observing compartment set points.

2. If set-points are normal, initiate Diagnostic Mode by pressing and holding either

COLDER key, then press UNIT

ON/OFF key, then release both keys.

NOTE: Diagnostic Mode will end twenty seconds after last key stroke.

3. When Diagnostic Mode is initiated, check to see if “Error Codes” are present, being sure to toggle through all
error codes and temperature readings by pressing either

COLDER key, or either WARMER key. (See

Thermistor Location Code Tables below.)

4. If Error Codes are present, refer to Error Code Troubleshooting Guide on previous pages.

5. If no Error Codes, initiate Manual Component Activation Mode (which lasts for 5 minutes) by pressing and hold­ing freezer

COLDER and UNIT ON/OFF keys for 10 seconds, then observe evaporator temperatures.

6. After observing evaporator temperature as instructed above, take note of “Pointers” in first column of the trou­bleshooting guide under problems “A” through “D”. The “Pointers” list what possible causes to check based on
evaporator temperature observed.

NOTE: If compartment and/or evaporator temperature history is needed to help diagnose problem, initiate
Temperature Log Recall Mode. Begin with unit ON and in Diagnostic Mode. While in Diagnostic Mode, toggle

through readings until desired thermistor temperature is displayed on LCD. Now, press UNIT ON/OFF key then
either WARMER key simultaneously. Toggle through indexes by pressing WARMER or COLDER key.

BR-3 Thermistor Code Table

THERMISTOR LOCATION CODE

Refrigerator Compartment r

Evaporator E

BCI-3 Thermistor Code Table

THERMISTOR LOCATION CODE

Freezer Compartment F

Refrigerator Compartment r

Evaporator E

BFI-3 Thermistor Code Table

THERMISTOR LOCATION CODE

Freezer Compartment F

Evaporator E

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-7

#3758424 - Revision B - December, 2005

GENERAL TROUBLESHOOTING GUIDE TABLE OF CONTENTS

Page #

A. “EE” Displayed in place of Freezer Temperature with “SERVICE” Flashing .................................................... 8-7

B. “EE” Displayed in place of Refrigerator Temperature with “SERVICE” Flashing .............................................. 8-7

C. Warm or Normal Temperatures Displayed with “SERVICE” Alone

Flashing .................................................... 8-7

D. Warm or Normal Temperatures Displayed with non-flashing

“SERVICE” Displayed ....................................... 8-7

E. Erratic Temperatures with or without “SERVICE” Flashing .............................................................................. 8-7

F.. Warm Refrigerator Temperatures, “SERVICE” not displayed or Flashing ...................................................... 8-7

G. Warm Freezer Temperatures, “SERVICE” not displayed or Flashing

.............................................................. 8-9

H. Product Temperature 10° or More Colder than Displayed Temperature ....................................................... 8-11

I. 1. “Extremely” Cold Temperatures Displayed .............................................................................................. 8-11

• 1° to 7° in Refrigerator

• -21° to -15° in Freezer

2. If outside US - “Extremely” Warm Temperatures Displayed

• 34° to 45° in Refrigerator

• -5° to 5° in Freezer

J. "ICE" and “SERVICE” Flashing ...................................................................................................................... 8-11

K. No Ice, "ICE" Displayed, but not

Flashing ..................................................................................................... 8-11

L. No Ice and "ICE" not Displayed ..................................................................................................................... 8-12

M. Icemaker produces Too much ice ................................................................................................................. 8-12

N. Icemaker Produces Hollow Cubes ................................................................................................................. 8-12

O. Icemaker Produces Small cubes ................................................................................................................... 8-12

P. Water or Clump of Ice in Ice Bucket .............................................................................................................. 8-13

Q. No LCD ......................................................................................................................................................... 8-13

R. No Lights ....................................................................................................................................................... 8-13

S. Lights Stay ON when Drawers Closed - (May be Accompanied by Drawer Ajar Alarm Bell) ........................ 8-14

T. Drawers Not Able to Close Completely .......................................................................................................... 8-14

U. Drawers Uneven ............................................................................................................................................ 8-14

SEALED SYSTEM TROUBLESHOOTING / DIAGNOSTICS TABLES ......................................................... 8-15

BASE UNIT MEMBRANE SWITCH / RIBBON CABLE TEST ....................................................................... 8-17

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-8

PROBLEM POSSIBLE CAUSE TEST / ACTION

A. “EE” Displayed in place of

Freezer Temperature with
“SERVICE” Flashing

B. “EE” Displayed in place of

Refrigerator Temperature
with “SERVICE” Flashing

C. Warm or Normal

Temperatures Displayed with
“SERVICE” Alone Flashing

D. Warm or Normal

Temperatures Displayed with
non-flashing “SERVICE”
Displayed

E. Erratic Temperatures with or

without “SERVICE” Flashing

F. Warm Refrigerator

Temperatures, “SERVICE”
not

displayed or Flashing

(Continued)

Freezer Compartment Thermistor
Disconnected, Shorted, or misread

Refrigerator Compartment Thermistor
Disconnected, Shorted, or misread

Excessive Compressor or Evaporator
Fan Run

Evaporator Thermistor Disconnected,
Shorted, or misread

Error Codes Observed in Diagnostic
Mode, but not Cleared from Memory

Control Board Configured for Wrong
Model

No Power to Unit

Unit Switched OFF

Unit in Show Room Mode

Control Set Too High

Warm Food Load

High Room Ambient

Door or Drawer Ajar

a. Food product obstruction
b. Drawer closer tripped backwards

Faulty Light Switch

Check freezer compartment thermistor elec­trical connections from thermistor to control
board. Reconnect / repair connections.
Check resistance of freezer compartment
thermistor for 30,000 to 33,000 ohms at
32°F. Replace if defective.

Check refrigerator compartment thermistor
electrical connections from thermistor to
control board. Reconnect / repair connec­tions. Check resistance of refrigerator com­partment thermistor for 30,000 to 33,000
ohms at 32°F. Replace if defective.

Initiate Diagnostic Mode and see Error Code
Troubleshooting Guide

Check evaporator thermistor electrical con­nections from thermistor to control board.
Reconnect / repair connections. Check
resistance of evaporator thermistor for
30,000 to 33,000 ohms at 32°F. Replace if
defective.

Enter diagnostic mode to observe error
codes. See Error Code Troubleshooting
Guide. Verify unit was repaired for error
codes displayed. Press and hold alarm key
for 15 seconds to clear error codes.

Initiate Manual Model Configuration Mode
and reconfigure to correct model.

Check power to unit, plug unit in or switch
supply circuit breaker ON.

Check for “OFF” displayed at LCD. If off,
press UNIT ON/OFF key.

Press UNIT ON/OFF key to OFF, then press
and hold WARMER& COLDER keys, and
press UNIT ON/OFF key.

Check set-point. If high, adjust.

Check contents of freezer for warm food
load. Instruct customer.

Instruct customer unit performs best
between 60°F(16°C) and 90°F(32°C).

a. Move obstruction.
b. Trip drawer closer forward

Check operation of light switches, lights off
when switch is depressed. Replace switch if
defective. (NOTE: Two light switches in unit)

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-9

#3758424 - Revision B - December, 2005

PROBLEM POSSIBLE CAUSE TEST / ACTION

(Continued)

F. Warm Refrigerator

Temperatures, “SERVICE”
not

displayed or Flashing

Refrigerator Compartment Fan Fault

a. Fan blade obstructed or out of position
b. Evaporator fan motor disconnected

c. Power to Fan Fault, or Fan Motor

Defective

Compartment Thermistor Disconnected,
Shorted, or misread

Air Baffle Control Fault (700BCI-3 Only)

a. Baffle Control Stuck Closed

b. Baffle Control Disconnected, Defective,

or not Receiving Signal from Control
Board.

a. Move obstruction or reposition blade.
b. Check electrical connections & continuity

from control board to motor. Reconnect /
repair bad connections.

c. With light switches depressed, check for

115V AC from control board to fan motor.
Replace control board if defective, or
Replace motor if defective.

Check refrigerator evaporator thermistor
electrical connections from thermistor to
control board. Reconnect / repair connec­tions. Check resistance of refrigerator evap­orator thermistor for 30,000 to 33,000 ohms
at 32°F. Replace if defective.

a. Manually open / close air baffle control. If

movement is not smooth, replace baffle con­trol.

b. With light switches depressed, initiate

Manual Compartment Activation Mode for
refrigerator compartment and observe baffle
operation. If baffle does not open within 3
minutes:

1. Check electrical connections from baffle
control to control board. Reconnect / repair
bad connections.

2. If electrical connections and wiring are
good, and baffle moves freely, replace con­trol board.

Low Voltage Circuit.
Do NOT apply 115V AC.

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-10

#3758424 - Revision B - December, 2005

PROBLEM POSSIBLE CAUSE TEST / ACTION

G.) Warm Freezer Temperatures,

“SERVICE” not

displayed or

Flashing

Pointers:

Compressor must be ON & unit
not defrosting, then initiate
Diagnostic Mode to observe
evaporator temperature.

1. “Sr” appears, see:

• Unit in Showroom Mode

2. “EC” appears, see:

• Error Code Troubleshooting
Guide

3. Evap. temp. -20°F (-29°C) or
lower, see:

• Drawer ajar

• Lights switch fault

• Evaporator fan fault

• Compartment thermistor mis­read

• Evaporator heavily frosted

• Sealed system fault - leak or
partial restriction

4. Evaporator Temp. between ­19°F (-28°C) & 10°F (-12°C),
see:

• Warm food load

• High room ambient

• Drawer ajar

• Condenser Air Flow

• Compartment thermistor mis­read

• Sealed system fault, leak

5. Evap. Temp. 20°F (-29°C) or
higher, see:

• Power To Compressor fault

• Sealed system fault, leak
restriction or inefficient com­pressor

(NOTE: “Pointers” do not apply to
cabinet initial pulldown from
ambient temperatures.)

(Continued)

No Power to Unit

Unit Switched OFF

Unit in Show Room Mode

Control Set Too High

Warm Food Load

High Room Ambient

Drawer Ajar

a. Food product obstruction
b. Drawer closer tripped backwards

Condenser Air Flow

a. Dirty condenser
b. Condenser fan blade obstructed or

loose

c. Condenser fan motor disconnected

d. Condenser fan motor defective

Faulty Light Switch

Evaporator Fan Fault

a. Fan blade obstructed or out of position
b. Evaporator fan motor disconnected

c. Power to Fan Fault, or Fan Motor

Defective

(NOTE: Compressor must be running)

Compartment Thermistor Misread

Check power to unit, plug unit in or switch
supply circuit breaker ON.

Check for “OFF” displayed at LCD. If off,
press UNIT ON/OFF key.

Press UNIT ON/OFF key to OFF, then press
and hold WARMER& COLDER keys, and
press UNIT ON/OFF key.

Check set-point. If high, adjust.

Check contents of freezer for warm food
load. Instruct customer.

Instruct customer unit performs best
between 60°F(16°C) and 90°F(32°C).

a. Move obstruction.
b. Trip drawer closer forward

a. Clean condenser.
b. Remove obstruction or tighten blade.
c. Check continuity from motor to compressor.

Reconnect / repair wiring or connections.

d. Check for 115V AC to motor, replace if

defective.

Check operation of light switches, lights off
when switch is depressed. Replace switch if
defective. (NOTE: Two light switches in unit)

a. Move obstruction or reposition blade.
b. Check electrical connections & continuity

from control board to motor. Reconnect /
repair bad connections.

c. With light switches depressed, check for

115V AC from control board to fan motor.
Replace control board if defective, or
Replace motor if defective.

Check resistance of freezer compartment
thermistor for 30,000 to 33,000 ohms at
32°F. Replace if defective.

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-11

#3758424 - Revision B - December, 2005

PROBLEM POSSIBLE CAUSE TEST / ACTION

(Continued)

G.) Warm Freezer Temperatures,

“SERVICE” not

displayed or

Flashing

Pointers:

Compressor must be ON & unit
not defrosting, then initiate
Diagnostic Mode to observe
evaporator temperature.

1. “Sr” appears, see:

• Unit in Showroom Mode

2. “EC” appears, see:

• Error Code Troubleshooting
Guide

3. Evaporator temp. -20°F (­29°C) or lower, see:

• Drawer ajar

• Lights switch fault

• Evaporator fan fault

• Compartment thermistor mis­read

• Evaporator heavily frosted

• Sealed system fault - leak or
partial restriction

4. Evaporator. Temp. between ­19°F (-28°C) & 10°F (-12°C),
see:

• Warm food load

• High room ambient

• Drawer ajar

• Condenser Air Flow

• Compartment thermistor mis­read

• Sealed system fault, leak

5. Evaporator. Temp. 20°F (­29°C) or higher, see:

• Power To Compressor fault

• Sealed system fault, leak
restriction or inefficient com­pressor

(NOTE: “Pointers” do not apply to
cabinet initial pulldown from
ambient temperatures.)

Evaporator Heavily Frosted

a. Drawer ajar
b. Evaporator fan fault
c. Compartment thermistor misread
d. Defrost heater disconnected or faulty

e. Defrost terminator disconnected or

faulty.

f. Defrost sense line disconnected.

g. No power from control board to defrost

circuit

Power to Compressor Fault

Sealed System Fault

• Sealed System Leak

• Sealed System Restriction

• Inefficient Compressor

a. See Drawer Ajar above.
b. See Evaporator Fan Fault above.
c. See Thermistor Misread above
d. Check electrical connections. Reconnect /

repair bad connections. Check resistance of
heater, 30-38 Ohms, replace if defective.

e. Check electrical connections, Reconnect /

repair connections or replace bad terminator.

f. Manually initiate defrost - press ICE key for

10 seconds. If defrost lasts exactly 5 min­utes, check all connections of gray/white
wire from terminator to control board.
Reconnect / repair bad connections.

g. Manually initiate defrost - Press ICE key for

10 seconds. Check for 115V AC at control
board. Replace control board if defective.

Check for 115V AC at control board.
Replace control board if defective.

See Sealed System Troubleshooting Guide

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-12

#3758424 - Revision B - December, 2005

PROBLEM POSSIBLE CAUSE TEST / ACTION

H. Product Temperature 10° or

More Colder than Displayed
Temperature

I. 1. “Extremely” Cold

Temperatures Displayed

• 1° to 7° in Refrigerator

• -21° to -15° in Freezer

2. If outside US ­“Extremely” Warm
Temperatures Displayed

• 34° to 45° in Refrigerator

• -5° to 5° in Freezer

J. "ICE" and “SERVICE”

Flashing

K. No Ice, "ICE" Displayed, but

not Flashing

(NOTE: The Icemaker system

is disabled for 45 minutes after
each harvest.)

(Continued)

Compartment Thermistor Misread

1. Control Set to Display Celsius

2. If Outside US - Control Set to Display
Fahrenheit

Water Valve Energized Longer then 15
Seconds

No Water Supply to Unit

Unit Has Not Run Long Enough

Warm Freezer Temperatures

(NOTE: Freezer must be 17°F or colder for
icemaker to function)

Shut-off Arm Stuck in Up/Off Position

Disconnected or Defective Water Valve

Frozen Fill Tube

a. Water Supply Problem

b. Disconnected or defective fill tube

heater

c. No power from control board to fill tube

heater

Check resistance of compartment thermistor
for 30,000 to 33,000 ohms at 32°F. Replace
if defective.

1. Change temperature units of measure to
Fahrenheit. Switch unit OFF, then ON, then
press & hold Bell key and UNIT ON/OFF
key for 10 seconds.

2. If Outside US - Change temperature units of
measure to Celsius. Switch unit OFF, then
ON, then press & hold Bell key and UNIT
ON/OFF key for 10 seconds.

• Check icemaker for jammed ice cube, clear
jam if present.

• Check icemaker levelness; level if needed.

• Check position of fill cup. Reposition if in
ice path.

• Check water supply pressure; must be con­stant 20-100 PSI. If not, instruct customer.

• Check water valve operation, opens when
115V AC is applied, closes completely when
115V AC is removed. Water valve Ohms =

160. Replace if defective.

NOTE: Unit must be switched OFF, then ON to

clear flashing ICE & SERVICE, then press
alarm key for 15 seconds to clear error
codes.

Connect/turn on water supply.

Freezer must be 17°F for icemaker to oper­ate, approximately 24 hours after unit instal­lation. Instruct customer.

See PROBLEM A, B, D, E, F & G earlier in
Troubleshooting Guide.

Check shut-off arm, if stuck in up/off posi­tion, correct problem.

Check electrical connections and water con­nections at water valve, Reconnect / repair
connections.
Check resistance of water valve, 160 ohms.
Replace if defective.

a. Check water supply pressure for “constant”

20-100 PSI. If not, instruct customer.

b. Check electrical connections at fill tube

heater. Reconnect / repair connections.
Check resistance of fill tube heater.
Replace if defective.

c. Initiate manual defrost and check for 115V

AC from control board. Replace board if
defective.

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-13

#3758424 - Revision B - December, 2005

PROBLEM POSSIBLE CAUSE TEST / ACTION

(Continued)

K. No Ice, "ICE" Displayed, but

not Flashing

(NOTE: The Icemaker system

is disabled for 45 minutes after
each harvest.)

L. No Ice and "ICE" not

Displayed

M. Icemaker produces Too

much ice

N. Icemaker Produces Hollow

Cubes

O. Icemaker Produces Small

cubes

Icemaker System Fault

a. Disconnected or damaged electrical

connections at icemaker or water valve.

b. Defective icemaker

c. Defective icemaker

d. Disconnected or damaged electrical

connections at icemaker

e. Icemaker switch disconnected or faulty

f. Electrical connection at control board or

control board defect

Icemaker System Not Energized

Ice Level Arm/Linkage Bent or Broken

Icemaker Faulty

Freezer Too Cold, Cycles Icemaker Too
Soon

Not Enough Thermal-Mastic on
Icemaker Thermostat

Icemaker Thermostat Fault

Water Supply Problem

Icemaker Not Level

Low Fill Adjustment on Icemaker

Press ICE key to OFF, then to ON to bypass 45
minute dwell. Then, depress icemaker switch &
manually start icemaker with jumper between
ports “T” & “H”. Watch cycle of icemaker and
see #1, #2 & #3 below.

1. If icemaker motor starts and finishes cycle:

a. Check for 115V at valve during fill mode. If

no 115V, inspect connections at icemaker
and valve. Repair or replace connection.

b. Check for 115V from icemaker during fill

mode. If no power, replace icemaker.

2. If icemaker motor starts but does not finish
cycle:

c. Replace icemaker.

3. If icemaker motor does NOT start:

d. Check for 115V to icemaker. If no power,

repair electrical connection.

e. Check power to/from icemaker switch.

Repair connection, replace defective switch.

f. Check for 115V at control board (J7-5). If

no power, replace control board. If power,
repair connection.

Press ICE key. “ ICE” should appear on
LCD.

Inspect ice level arm, shut-off arm and link­age. Replace defective parts.

With ice level arm in UP/OFF position,
Pressing ICE key to OFF, then ON to
bypass 45 minute dwell. Then, depress ice­maker switch & manually start icemaker with
jumper between ports “T” & “H”. If icemaker
motor starts with arm in the UP/OFF posi­tion, replace icemaker.

See PROBLEM “H” earlier in
Troubleshooting Guide.

Inspect icemaker thermostat, apply more
Thermal-Mastic to thermostat.

Replace Thermostat.

Check water supply pressure; must be con­stant 20-100 PSI. If not, instruct customer.

Check level of icemaker, adjust if needed

Check for 100-110 cc. fill (3.5-3.75 oz.). If
low, increase fill by turning adjusting screw
counterclockwise.

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-14

#3758424 - Revision B - December, 2005

PROBLEM POSSIBLE CAUSE TEST / ACTION

P. Water or Clump of Ice in Ice

Bucket

Q. No LCD

R. No Lights

Icemaker Not Level

High Fill Adjustment on Icemaker

Water Valve Energized Too Long

Intermittent Warm Freezer Temperatures

Unit in Sabbath Mode

Display Wire Harness Disconnected or
Faulty

Control Panel Assembly Defective (OR)
No Signal Read at Control Board

No power to unit

Unit switched OFF

Unit in Sabbath Mode

Defective or loose light bulb(s)

Light Switch Disconnected or Defective

Lighting System Wiring Disconnected or
Defective

No Power From Control Board

(NOTE: See Unit in Sabbath Mode above.)

Check level of icemaker, level if needed.

Check for 100-110 cc. fill (3.5-3.75 oz.). Turn
adjusting screw clockwise to decrease.

• Check icemaker for jammed ice cube, clear
jam if present.

• Check icemaker levelness; level if needed.

• Check position of fill cup. Reposition if in
ice path.

• Check water supply pressure; must be con­stant 20-100 PSI. If not, instruct customer.

• Check water valve operation, opens when
115V AC is applied, closes completely when
115V AC is removed. Water valve Ohms =

160. Replace if defective.

NOTE: Unit must be switched OFF, then ON to

clear flashing ICE & SERVICE, then press
alarm key for 15 seconds to clear error
codes.

See PROBLEM A, B, D, E, F & G earlier in
Troubleshooting Guide.

Exit Sabbath Mode, press UNIT ON/OFF
key.

Check display wire harness and connec­tions, including wires behind refrigerator
duct cover. Reconnect, repair, replace bad
wiring.

See Membrane Switch/Ribbon Cable Test
Procedures. If membrane switch fails any
test, replace entire control panel assembly.
If switch passes all tests, replace control
board.

Check power to unit, plug unit in or switch
supply circuit breaker ON.

Switch unit ON, press UNIT ON/OFF key.

Exit Sabbath Mode, press UNIT ON/OFF
key.

Install a known good light bulb.

Check wire connections at light switch.
Reconnect/repair. Check for 115V AC to
and from light switch. Replace switch if
defective.

Check continuity from light sockets to
switch. Reconnect/repair or replace defec­tive components.

Check for 115V AC from control board.
Replace board if defective.
(NOTE: See Unit in Sabbath Mode above.)

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-15

#3758424 - Revision B - December, 2005

PROBLEM POSSIBLE CAUSE TEST / ACTION

S. Lights Stay ON when

Drawers Closed - (May be
Accompanied by /Drawer
Ajar Alarm Bell)

T. Drawers Not Able to Close

Completely

U. Drawers Uneven

Door or Drawer Ajar

a. Food product obstruction
b. Drawer closer tripped backwards

Faulty Light Switch

Food Product Obstruction

Drawer Closer Tripped Backwards

Improper Drawer Panel Installation

Unit Not Level

a. Move obstruction.
b. Trip drawer closer forward

Check operation of light switches, lights off
when switch is depressed. Replace switch
if defective. (NOTE: Two light switches in

unit)

Move obstruction.

Trip drawer closer forward

The drawers are non-adjustable. Instead,
the drawer panels must be adjusted if there
is an alignment problem. Refer to the
Installation Manual and/or installation video
for panel installation and adjustment.

Check levelness of unit. If un-level, turn
front leveling legs counterclockwise to raise
front or clockwise to lower it. Rear levelers
are adjusted from front of base by turning
adjusting screw clockwise to raise rear or
counterclockwise to lower it. Refer to the
Installation Manual and/or installation video
for complete installation and leveling instruc­tions.

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-16

#3758424 - Revision B - December, 2005

700BR-3

X” vacuum to X psi XX psi to XXX psi

700BF/I-3

3” vacuum to 2 psi 90 psi to 120 psi

SEALED SYSTEM TROUBLESHOOTING / DIAGNOSTICS TABLES

Before tapping into the sealed system to check pressures, see General Troubleshooting Guide, taking note of prob­lems “A” through “J”, and if applicable, be sure to reference the “Pointers” in the first column. By initiating Diagnostic
Mode and observing evaporator temperatures, it may be determined unnecessary to tap the sealed system. If need­ed, the table on the following page provides a quick reference for temperature/pressure correlation.

NOTE: If entering the sealed system to check pressures, always use solder-on process valves. Do NOT use bolt­on process valves as they are prone to leak.

NOTE: Whenever servicing the sealed system, the high-side filter-drier must be replaced.

NORMAL OPERATING PRESSURES

PRESSURE INDICATIONS

If low-side pressure is

NORMAL

LOW

LOW

HIGH

HIGH

& high-side pressure is

NORMAL

LOW

HIGH

LOW

HIGH

possible problem is

MECHANICAL

(see General Troubleshooting Guide)

LEAK

RESTRICTION

INEFFICIENT COMPRESSOR

OVER CHARGE

Model Normal Low-Side Pressures Normal High-Side Pressures

700BC/I-3

3” vacuum to 2 psi 90 psi to 120 psi

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-17

#3758424 - Revision B - December, 2005

EVAPORATOR TEMPERATURE / SEALED SYSTEM LOW-SIDE PRESSURE CORRELATION

Pressure

10” Vac

7” Vac
4” Vac
0” Vac

2 Psi
4 Psi
7 Psi

9 Psi
12 Psi
15 Psi
18 Psi
22 Psi
26 Psi
30 Psi
35 Psi
40 Psi
45 Psi
51 Psi
57 Psi
64 Psi
71 Psi
78 Psi

Temp °F

-30

-25

-20

-15

-10

-5
0
5

10
15
20
25
30
35
40
45
50
55
60
65
70
75

NOTE: The temperature/pressure table at right
is for reference only. A unit's temperature/pres­sure correlation may differ from those listed due
to: variations in evaporator thermistor location,
set-points, where the sealed system is in the
refrigeration cycle, etc.
If a unit is experiencing temperature problems,
it is recommended to reference the General
Troubleshooting guide and follow any "Pointers"
that may appear in the first column. After all
mechanical and electrical components have
been ruled out, sealed system pressures can
be checked by applying solder-on process
valves and referencing the preceding page. Do
NOT use bolt-on process valves as they are
prone to leak.
This table should only be used as a last quick
check before entering the sealed system.

Troubleshooting Guides

Integrated

(700-3BASE)

Series

8-18

#3758424 - Revision B - December, 2005

BASE UNIT MEMBRANE SWITCH / RIBBON CABLE TEST

If the integrity of a Base Unit control panel assembly is suspect, continuity tests should be performed at the mem­brane switch ribbon cable terminal housing. Begin by removing the control panel assembly from the unit and place it
on a solid surface. Disconnect the ribbon cable from control panel PC board.

How To Identify Pin 1 on Terminal Housing

The ribbon cable wires are exposed at the back of the terminal housing, but since there are two vendors of the
membrane switch, determining the location of pin 1 is not always easy. To identify the pins, follow these guidelines:

1. If terminal housing is BLUE, then pin 1 is closest to arrow on housing.

2. If terminal housing is BLACK, check for continuity between first two pins at each end of housing while pushing
Freezer W

ARMER key

. If there is continuity, then pin 1 is at that end.

700BCI-3 Membrane Switch/Ribbon Cable Test Procedure

1. Press no keys on membrane switch. Check for continuity between all pin combinations. With no keys pressed,
there should be no continuity between any pins.

2. Press UNIT ON/OFF key, there should be continuity across pins 3 & 4.

3. Press Door Ajar Alarm ON/OFF key, there should be continuity across pins 2 & 4.

4. Press Freezer WARMER key, there should be continuity across pins 1 & 2.

5. Press Freezer COLDER key, there should be continuity across pins 1 & 5.

6. Press Refrigerator WARMER key, there should be continuity across pins 4 & 5.

7. Press Refrigerator COLDER key, there should be continuity across pins 1 & 3.

NOTE: If any of the tests show failure, replace entire control panel assembly.

Terminal Housing

NOTE: See “How To Identify Pin 1”, above.

Ribbon Cable

Membrane Switch in
Control Panel Assembly

Figure 9-2. 700BCI3 Control Panel Assembly with Cut-Away View to Show Ribbon Cable

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF