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T T e e c c h h n n i i c c a a l l
S S e e r r v v i i c c e e M M a a n n u u a a l l
3 3
3 3
I I n n t t e e g g r r a a t t e e d d
S S e e r r i i e e s s
I I n n t t e e g g r r a a t t e e d d
S S e e r r i i e e s s
( ( 7 7 0 0 0 0 - -
T T A A L L L L ) )
( ( 7 7 0 0 0 0 - -
T T A A L L L L ) )
© SUB-ZERO FREEZER COMPANY INC.
2006 ALL RIGHTS RESERVED
JOB AID #3758412
(Revision B - December 2006)
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Table of Contents
Troubleshooting
Related Manuals for Sub-Zero 700TR-3
Summarization of Contents
Technical Service Manual
Integrated (700-3 TALL) Series
Identifies the specific product series covered by this manual.
Section 1 General Information
Introduction
Overview of the Technical Service Manual's purpose and scope.
Important Safety Information
Guidelines and warnings for safe operation and handling of the appliance.
Technical Assistance
Contact information and procedures for obtaining technical support.
Warranty Information
Warranty Details and Notes
Explains terms, coverage, and conditions of Sub-Zero warranties for the series.
Model Descriptions
Covered Models Overview
Brief descriptions and illustrations of the 700-3 Tall Series models covered.
Section 2 Installation Information
Installation Considerations
Key factors and common issues to consider during unit installation.
Unit Leveling
Procedures for correctly leveling the appliance using front and rear levelers.
Door and Drawer Adjustment
Guidance on adjusting door and drawer alignment for proper sealing.
Door Stop Adjustment
Instructions for adjusting the 90° door stop cam for correct door closure.
Dual Unit Installations
Procedures and considerations for installing multiple units side-by-side.
Section 3 Electronic Control System Information
Electronic Control Terminology and Components
Definitions of terms and descriptions of components within the electronic control system.
Basic Electronic Control System
Overview and schematic of the fundamental electronic control system operation.
Control Board Layout and Summary Table
Diagrams and tables detailing control board connections and component functions.
Control Panel Layout
Illustration and explanation of the control panel interface and its buttons.
Basic Electronic Control Input Operations
Step-by-step guides for common user interactions with the control panel.
Adjusting Set-Point (Temperature Adjustment)
How to modify the desired temperature settings for refrigerator and freezer compartments.
Icemaker System ON/OFF
Instructions for activating or deactivating the icemaker function via the control panel.
Door Ajar Alarm Feature ON/OFF
How to enable or disable the audible alarm that alerts when doors are left open.
Unique Electronic Control Input Operations
Advanced control panel functions beyond daily operation.
Temperature Units Selection Mode
Procedure to switch temperature display between Fahrenheit and Celsius.
Sabbath Mode
How to activate Sabbath Mode, disabling certain functions for religious observance.
Showroom Mode
Procedure to activate Showroom Mode, disabling cooling while keeping lights active.
Manual Zone Disable Mode
How to turn off cooling for a specific zone for cleaning or service.
Manual Freezer Evaporator Defrost
Procedure to manually initiate a defrost cycle for the freezer evaporator.
Functions of the Electronic Control System
Explanations of how the control system manages various appliance functions.
Supply Power to the Lighting System
How the control system provides power to the internal lighting.
Monitor, Regulate and Display Compartment Temperatures
How the system monitors, controls, and displays compartment temperatures.
Assist in Control of Variable Speed Compressors (700TF/I-3 Only)
Explanation of how the control system manages variable speed compressor operation.
Control Condenser Fan Run
How the system controls the operation of the condenser fan based on compressor status.
Monitor and Control Refrigerator “Fan-Assisted, Off-Cycle Defrost”
Description of the defrost cycle for the refrigerator compartment.
Monitor and Control Freezer “Adaptive Defrost”
Explanation of the adaptive defrost algorithm for the freezer compartment.
Monitor Compressor Run Duration, Displays If Service is Needed
How the system monitors compressor runtime and indicates potential service needs.
Monitor Icemaker System and Display If Service is Needed
How the system monitors icemaker operation and indicates service requirements.
Possible Error Indicators
Displays and explanations of error codes that may appear on the unit's LCD.
Troubleshooting Input Operations
Procedures related to using control panel inputs for troubleshooting.
Diagnostic Mode
Procedure to enter diagnostic mode for observing real-time readings and error codes.
Diagnostic Mode Indicators
Interpretation of indicators like 'EE', 'Sr', and 'EC' observed during diagnostic mode.
Error Code Table
A list of error codes, their indications, and associated troubleshooting steps.
Clearing Error Codes
Steps to clear registered error codes from the control memory after repairs.
Manual Component Activation Mode
Procedure to manually energize cooling system components for testing.
Temperature Log Recall Mode
How to access stored temperature history data for diagnostics.
Possible Temperature Log Recall Mode Event Indicators
Explanation of special indicators that may appear during temperature log recall.
Temperature Log Index Chart
Chart correlating index numbers to hours past for temperature log recall.
Section 4 Sealed System Information
HFC-134a Refrigerant Service Information
Guidelines and procedures for servicing systems using HFC-134a refrigerant.
General Rules for Working with 134a Refrigerant
Essential safety and operational rules when handling 134a refrigerant.
Sealed System Repair Procedures
Step-by-step procedures for diagnosing and repairing common sealed system problems.
Sealed System Operation
Diagrams illustrating the fundamental flow and role of components in a sealed system.
Sealed System Refrigerant Flow Diagrams
Model-specific diagrams showing refrigerant flow through the sealed system.
Section 5 Air Flow & Fan Blade Spacing
Air Flow and Fan Blade Spacing
Diagrams illustrating airflow patterns and specifying fan blade spacing for different models.
700TR-3 and 736TR-3 Air Flow and Fan Blade Spacing
Airflow and fan blade spacing details for 700TR-3 and 736TR-3 models.
700TF/I-3 Air Flow and Fan Blade Spacing
Airflow and fan blade spacing details for the 700TF/I-3 model.
Section 6 Icemaker Information
Icemaker System Information
Overview of icemaker models and additional system operating notes.
Additional Icemaker System Information
Key operational notes and settings for the icemaker system.
Modular Icemaker Operation
Details on the electrical schematic and ejector blade rotation for modular icemakers.
What Happens During Modular Icemaker Ejector Blade Rotation
Explanation of the ejector blade rotation sequence during the icemaker cycle.
Modular Icemaker Test Procedures
Step-by-step tests for diagnosing potential defects in the modular icemaker.
Modular Icemaker Water Fill Adjustment
How to adjust the water fill level for the modular icemaker.
Modular Icemaker Disassembly
Procedures for removing specific components of the modular icemaker assembly.
Midsouth and Japan-Servo Icemaker Components
Descriptions of components specific to Midsouth and Japan-Servo icemakers.
Midsouth and Japan-Servo Icemaker Operation
Electrical schematics illustrating the different phases of the ice making cycle.
Freeze Phase of Ice Making Cycle
Description of the initial phase where the ice mold is filled with water.
Start of the First Revolution
Description of the icemaker cycle starting after the water has frozen.
First Revolution Continued
Continuation of the first revolution sequence in the icemaker cycle.
Start of Second Revolution
Description of the second revolution phase in the icemaker cycle.
Second Revolution Continued
Continuation of the second revolution sequence in the icemaker cycle.
Second Revolution Continued
Further continuation of the second revolution in the icemaker cycle.
End of Ice Making Cycle
Description of the final phase where the ice making cycle concludes.
Manually Stopping Ice Production
Methods for manually halting the ice production cycle.
Manually Starting the Icemaker
Procedures for manually initiating an icemaker cycle.
Adjusting Icemaker Water Fill Level
How to adjust the water fill amount for MidSouth icemakers.
Icemaker Fault Testing
Troubleshooting steps for common icemaker issues and fault diagnosis.
Possible Problems
A guide to identifying and resolving issues related to ice production and quality.
Section 7 Component Access and Removal
Component Access and Removal
General procedures and safety notes for accessing and removing unit components.
Warnings and Cautions
Critical safety warnings and precautions to observe before and during component service.
Exterior Cosmetic and Mechanical Components
Procedures for accessing and removing external parts like the kickplate and molding.
Kickplate/Grille Removal
Steps to remove the kickplate or grille for access to internal components.
Side Molding Strip Removal
How to remove the side molding strips for access to cabinet brackets.
Upper Compartment Light Switch & Fan Switch Removal
Procedure for accessing and removing the light and fan switches in the upper compartment.
Drawer Assembly Removal
Steps for removing the drawer assemblies from the unit.
Door & Drawer Gasket Removal
How to remove and replace door and drawer gaskets.
Door Assembly Removal
Detailed steps for removing the entire door assembly from the unit.
Upper and Lower Hinge Assembly Removal
Procedures for removing the door hinge assemblies.
Interior Cosmetic, Mechanical and Electrical Components
Procedures for accessing and removing internal components within the compartments.
Door Shelf and Dairy Compartment Adjustment / Removal
How to adjust or remove door shelves and dairy compartments.
Compartment Shelf Adjustment / Removal
Steps for adjusting or removing interior compartment shelves.
Upper Light Diffuser Removal
How to remove the upper compartment's light diffuser cover.
Light Bulb Removal
Instructions for removing and replacing light bulbs in the upper and drawer compartments.
Control Board Removal
Detailed steps for accessing and removing the main control board.
Control Panel Assembly Removal
Procedure for removing the control panel assembly from the unit.
Upper Evaporator Cover / Air Duct Removal
Steps for removing the evaporator cover and air duct assembly.
Upper Evaporator Fan Shroud Assembly Removal
How to remove the fan shroud assembly holding lighting components.
Upper Compartment Evaporator Fan Assembly Removal
Procedure for removing the evaporator fan assembly in the upper compartment.
Upper Compartment Thermistor Removal
Steps for accessing and removing the upper compartment thermistor.
Upper Evaporator Thermistor Removal
How to remove the evaporator thermistor in the upper compartment.
Drawer Closer Assembly Removal
Procedure for removing the drawer closer assemblies.
Drawer Slide Assembly Removal
Steps for removing the drawer slide assemblies.
Icemaker Assembly Removal
Detailed instructions for removing the icemaker assembly.
Heat Exchanger Cover Removal
How to remove the heat exchanger cover in the lower compartment.
Lower Evaporator Cover Assembly Removal
Procedure for removing the lower evaporator cover assembly on specific models.
Lower Evaporator Fan Assembly Removal
Steps for removing the lower evaporator fan assembly on specific models.
Lower Compartment Thermistor Removal
Procedure for removing the lower compartment thermistor.
Lower Evaporator Thermistor Removal
How to remove the lower evaporator thermistor.
Lower Evaporator Cover Assembly Removal
Procedure for removing the lower evaporator cover assembly on specific models.
Drain Trough Heater Removal
How to access and remove the drain trough heater in the lower compartment.
Lower Evaporator Fan Shroud Removal
Procedure for removing the lower evaporator fan shroud.
Lower Evaporator Fan Assembly Removal
Steps for removing the lower evaporator fan assembly.
Defrost Terminator Removal
How to access and remove the defrost terminator from the evaporator tubing.
Defrost Heater Removal
Procedure for removing the defrost heater from the evaporator fins.
Switch Enclosure Assembly Removal
Steps for accessing and removing the switch enclosure assembly.
Lower Evaporator Thermistor Removal
How to remove the lower evaporator thermistor.
Lower Compartment Thermistor Removal
Procedure for removing the lower compartment thermistor.
Fill Tube Heater Removal
Steps for accessing and removing the fill tube heater.
Lower Compartment Light / Fan / Icemaker Switch Removal
How to remove switches mounted in the lower compartment switch enclosure.
Icemaker Water Valve Removal
Procedure for removing the icemaker water valve assembly.
Condenser Fan Assembly Removal
Steps for removing the condenser fan assembly.
Sealed System Components
Procedures for accessing and removing sealed system components.
Upper Refrigerator Compartment Evaporator Removal
Procedure for removing the upper refrigerator compartment evaporator.
Lower Compartment Evaporator Removal
Steps for removing the lower compartment evaporator.
High-Side Filter-Drier Removal
How to access and remove the high-side filter-drier.
Compressor Removal
Detailed procedure for removing the compressor from the unit.
Condenser Removal
Steps for removing the condenser assembly.
Upper Compartment Heat Exchanger Removal
Procedure for removing the upper compartment heat exchanger.
Lower Compartment Heat Exchanger Removal
Steps for removing the lower compartment heat exchanger.
Section 8 Troubleshooting Guides
Troubleshooting Guides
Overview of the troubleshooting section, including error codes and general guides.
How to Use the Error Code Troubleshooting Guide
Instructions on utilizing error codes to diagnose system malfunctions.
Error Code Table
A comprehensive list of error codes and their corresponding indications and causes.
Error Code Troubleshooting Guide
Detailed troubleshooting steps linked to specific error codes for diagnosis and repair.
How to Use General Troubleshooting Guide
Guidance on navigating the general troubleshooting section for common issues.
For Problems “A” through “N”
Troubleshooting steps categorized by problem type for specific temperature issues.
For All Problems
General troubleshooting procedures applicable to all issues, including temperature history recall.
Sealed System Troubleshooting / Diagnostic Tables
Tables outlining normal operating pressures and diagnostic information for sealed systems.
Normal Operating Pressures
Reference table for typical low-side and high-side operating pressures across various models.
Pressure Indications
Correlation between pressure readings and potential sealed system problems.
Evaporator Temperature / Sealed System Low-Side Pressure Correlation
Table correlating evaporator temperatures with expected low-side pressures.
Control Panel Membrane Switch / Ribbon Cable Test
Procedures for testing the integrity and continuity of the control panel's membrane switch and ribbon cable.
Tall Unit Door Hinge Operation Test Procedures and Corrections
Steps for testing and correcting door closing issues related to hinges.
Section 9 Technical Data
Model 700TC/I-3
Detailed specifications for the 700TC/I-3 model, including charge, pressures, and component ratings.
Model 700TR-3
Detailed specifications for the 700TR-3 model, including charge, pressures, and component ratings.
Model 700TF/I-3
Detailed specifications for the 700TF/I-3 model, including charge, pressures, and component ratings.
Model 736TC/I-3
Detailed specifications for the 736TC/I-3 model, including charge, pressures, and component ratings.
Model 736TR-3
Detailed specifications for the 736TR-3 model, including charge, pressures, and component ratings.
Section 10 Wiring Diagrams and Schematics
Wiring Diagram Model: 700TC-3
Detailed wiring diagram for the 700TC-3 model, showing component connections.
Wiring Schematic Model: 700TC-3
Schematic illustrating the electrical pathways and logic for the 700TC-3 model.
Wiring Diagram Model: 700TR-3
Detailed wiring diagram for the 700TR-3 model, showing component connections.
Wiring Schematic Model: 700TR-3
Schematic illustrating the electrical pathways and logic for the 700TR-3 model.
Wiring Diagram Model: 700 TF/I-3
Detailed wiring diagram for the 700TF/I-3 model, showing component connections.
Wiring Schematic Model: 700 TF/I-3
Schematic illustrating the electrical pathways and logic for the 700TF/I-3 model.
Wiring Diagram Model: 736TC/I-3
Detailed wiring diagram for the 736TC/I-3 model, showing component connections.
Wiring Schematic Model: 736TC/I-3
Schematic illustrating the electrical pathways and logic for the 736TC/I-3 model.
Wiring Diagram Model: 736TR-3
Detailed wiring diagram for the 736TR-3 model, showing component connections.
Wiring Schematic Model: 736TR-3
Schematic illustrating the electrical pathways and logic for the 736TR-3 model.
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