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Norcold 120X-IM Series User Manual

Norcold 120X-IM Series
68 pages
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Norcold 120X-IM Series Specifications

General IconGeneral
BrandNorcold
Model120X-IM Series
CategoryRefrigerator
LanguageEnglish

Summary

Safety Awareness

Safety Notice

Highlights the need for standard safety precautions when servicing.

Attention Statements

Explains the meaning of WARNING and CAUTION alerts.

Safety Statements

Lists critical safety warnings regarding fuel, electrical, and component handling.

Specifications

Troubleshooting – Quick Reference Guide

Displayed Fault Codes

Lists fault codes for S/N 832170 and lower, with probable causes.

Troubleshooting Flowcharts

Provides step-by-step flowcharts for diagnosing common refrigerator problems.

no LP - no FL Fault Code

Troubleshooting flowchart for burner ignition failure.

Sr FS - Sr Fault Code - Flame Sense Circuit Failure

Troubleshooting flowchart for flame sense circuit failure.

dc LO Fault Code – Low dc voltage

Troubleshooting flowchart for low DC voltage.

dc HI Fault Code – DC voltage high

Troubleshooting flowchart for high DC voltage.

Sr CL - AC rE Fault Code – AC relay stuck closed

Troubleshooting flowchart for AC relay stuck closed.

no AC Fault Code – No AC power available

Troubleshooting flowchart for lack of AC power.

AC LO Fault Code – AC voltage low

Troubleshooting flowchart for low AC voltage.

AC HI Fault Code – AC voltage high

Troubleshooting flowchart for high AC voltage.

AC HE Fault Code – AC heater failed open

Troubleshooting flowchart for AC heater failure.

dr Fault Code – Door open for more than 2 minutes

Troubleshooting flowchart for door ajar fault.

Thermistor Failure Fault

Troubleshooting for thermistor failure and backup operating system.

no co Fault Code

Troubleshooting flowchart for no cooling detected.

LP Gas System

Pressure Requirements

Specifies required propane gas pressure for optimal cooling efficiency.

Testing for LP Gas Leaks

Procedures and safety precautions for testing LP gas system for leaks.

Electrical Requirements and Components

DC Voltage Requirements and Polarity

Specifies required DC voltage range and terminal connections.

Power Board DC Fuse

Identifies the location and type of the DC fuse on the power board.

DC Power Wiring Requirements

Details wire gauge and fuse size for DC power connections.

AC/DC Converter as Power Source

Recommends using filtered output from converters to avoid false fault codes.

Cooling Unit

Description

Overview of the self-contained gravity flow absorption refrigeration system.

Refrigerant Leakage

Critical warning about operating with suspected refrigerant leaks.

Cooling System Diagnostic Flowchart

Replacing the Cooling Unit

Electronic Components

Power Board

Location and description of the main control power board.

Controls

Diagnostic Mode - S/N 832170 and Below

Diagnostic Mode - Units S/N 832171 and Above

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