Norcold 462 User Manual

Norcold Repair Guide
Models 442, 443, 452, 453, 462, 463, 482, 483
Section 3
Table of Contents
Page
3-2 General Information and Specification
3-3 Information About Electrical Connections
3-3 Description of Operation
3-4 Location of Control and Components
3-5 Lighting and Operating Instructions
3-6 High Humidity and Interior Lamp Switch
3-7 Parts Function
3-10 Troubleshooting Procedures
3-10 Refrigerator Will Not Ignite Electrically on Propane
3-12 Refrigerator Does Not Indicate that a Flame has been Established
3-13 Burner Flame Will Not Light or Stay Lit
3-15 Refrigerator Overfreezing
3-15 Refrigerator Will Not Operate or Cool on A/C
3-18 Refrigerator Will Not Operate or Cool on D/C
3-21 Wiring Pictorials
3-23 Wiring Diagrams
3-E1 Information on Earlier Versions
3-W1 Wiring Pictorials for Earlier Versions
3-W3 Wiring Diagrams for Earlier Versions
B101
3-1

Norcold 462 Specifications

General

Weight	55 lbs
Refrigerant	R134a
Power Source	AC/DC
AC Voltage	120V AC
DC Voltage	12V

Summary

General Information and Specification

Operating Limits and Ratings

Electrical Connection and Operation

120V AC Electrical Hookup

12V DC Electrical Hookup

Refrigerator Mode Operation

Explains how to select and operate the refrigerator in different modes.

Component Location and Identification

Single Door Model Controls

Two Door Model Controls

Lighting and Operating Instructions

Gas Operation Procedures

Electric Operation Procedures

Operation Shut-Down

Parts Functionality Overview

Combination Control Function

Describes the operation and function of the main combination control.

Ignition Switch Function

Key Component Descriptions

Relighter and Ignition Electrode

Thermocouple and Orifice Description

Additional Component Descriptions

Burner and Heating Elements

AC-DC Mode Selector Switch

Troubleshooting Procedures

No Propane Ignition Troubleshooting

Steps to diagnose and fix issues with the refrigerator not igniting on propane.

Ignition System Voltage Checks

Steps to check voltage at various points in the ignition system.

No Flame Indication Troubleshooting

Diagnosing why the flame indicator is not illuminating when a flame is present.

Flame Not Staying Lit Troubleshooting

Steps to fix the issue where the burner flame ignites but then goes out.

Gas Pressure Troubleshooting

Checks and settings for proper gas pressure for burner operation.

Overfreezing and AC Cooling Issues

Diagnosing and resolving refrigerator overfreezing and AC cooling problems.

AC-DC Switch Electrical Tests

Verifying voltage at the AC-DC standby-DC switch terminals.

AC Heater Element Electrical Tests

Checking voltage and continuity of the AC heater element.

DC Cooling Failure Troubleshooting

Steps to diagnose why the refrigerator is not cooling on DC power.

DC System Voltage and Switch Checks

Verifying DC voltage at switches and combination control.

DC Heater Element Electrical Tests

Checking continuity and resistance of the DC heater element.