• Model: Business Class Models
  • Manufactured by: Dometic
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## Load Dump Switch Inspection and Installation on Domestic Refrigerators sb54276 PDF Download

This comprehensive manual provides detailed instructions for inspecting and installing load dump switches in domestic refrigerators. It covers all aspects of the process, from identifying the symptoms of a faulty load dump switch to troubleshooting and replacing the component. The manual also includes helpful tips and troubleshooting charts to assist technicians in diagnosing and resolving any issues they may encounter.

The manual is suitable for both professional technicians and do-it-yourselfers who want to maintain their own refrigerators. It is written in clear and concise language, with step-by-step instructions and plenty of illustrations to guide users through the process.

## Table of Contents

* Introduction
* Symptoms of a Faulty Load Dump Switch
* Troubleshooting a Load Dump Switch
* Replacing a Load Dump Switch
* Tips for Inspecting and Installing Load Dump Switches
* Troubleshooting Charts
* Appendix

## Introduction

A load dump switch is a safety device that protects a refrigerator's compressor from damage caused by sudden power surges. When the power to the refrigerator is interrupted, the load dump switch opens, preventing the compressor from being damaged by the surge of electricity that can occur when the power is restored.

## Symptoms of a Faulty Load Dump Switch

There are several symptoms that can indicate a faulty load dump switch, including:

* The refrigerator compressor does not start when the power is turned on.
* The refrigerator compressor starts and stops repeatedly.
* The refrigerator compressor hums but does not cool.
* The refrigerator compressor overheats.

## Troubleshooting a Load Dump Switch

If you suspect that the load dump switch in your refrigerator may be faulty, you can troubleshoot it by following these steps:

1. Unplug the refrigerator from the power outlet.
2. Remove the access panel to the compressor.
3. Locate the load dump switch. The load dump switch is usually located near the compressor.
4. Check the continuity of the load dump switch using a multimeter. The load dump switch should be open when the power is off and closed when the power is on.
5. If the load dump switch is not working properly, replace it with a new one.

## Replacing a Load Dump Switch

Replacing a load dump switch is a relatively simple process. To replace the load dump switch, follow these steps:

1. Unplug the refrigerator from the power outlet.
2. Remove the access panel to the compressor.
3. Locate the load dump switch.
4. Disconnect the wires from the load dump switch.
5. Remove the mounting screws and remove the load dump switch.
6. Install the new load dump switch.
7. Connect the wires to the new load dump switch.
8. Tighten the mounting screws.
9. Replace the access panel to the compressor.
10. Plug the refrigerator into the power outlet.

## Tips for Inspecting and Installing Load Dump Switches

Here are a few tips for inspecting and installing load dump switches:

* Always unplug the refrigerator from the power outlet before inspecting or installing the load dump switch.
* Use a multimeter to check the continuity of the load dump switch.
* Replace the load dump switch if it is not working properly.
* Tighten the mounting screws securely when installing the new load dump switch.

## Troubleshooting Charts

The following troubleshooting charts can help you diagnose and resolve any issues you may encounter when inspecting or installing a load dump switch:

**Chart 1: Symptoms and Causes of a Faulty Load Dump Switch**

| Symptom | Cause |
|---|---|
| The refrigerator compressor does not start when the power is turned on. | The load dump switch is open. |
| The refrigerator compressor starts and stops repeatedly. | The load dump switch is not working properly. |
| The refrigerator compressor hums but does not cool. | The load dump switch is open. |
| The refrigerator compressor overheats. | The load dump switch is not working properly.

**Chart 2: Troubleshooting Steps for a Faulty Load Dump Switch**

| Step | Action |
|---|---|
| 1 | Unplug the refrigerator from the power outlet. |
| 2 | Remove the access panel to the compressor. |
| 3 | Locate the load dump switch. |
| 4 | Check the continuity of the load dump switch using a multimeter. |
| 5 | If the load dump switch is not working properly, replace it with a new one. |

## Appendix

The appendix contains additional information on load dump switches, including:

* A glossary of terms
* A list of resources
* A sample load dump switch inspection and installation form


Load Dump Switch Inspection and Installation on Dometic
Refrigerators 54-276
Freightliner
Service Bulletin
FLA COE
FLB COE
FLD Conventional
Business Class
FLC 112 Conventional
Century Class Conventional
Argosy COE
Cargo
Columbia
Coronado
Business Class M2
> Cascadia
108SD/114SD