Dometic RM2190 Series - User Manual

Foreword
This service manual is the result of the
dedication of The
Dometic Corporation and
its engineers in giving service people the
necessary instruction for making accurate
analyses of certain conditions. Provided is
a diagnostic chart leading a qualified
mechanic into the service manual pages to
locate and solve symptoms which may
occur.
Dometic has continued its
commitment in providing service people
with this, the most up-to-date information
about servicing
Dometic RV accessories.
OS1 698 5/94

Dometic RM2190 Series Specifications

General

Brand	Dometic
Model	RM2190 Series
Category	Refrigerator
Language	English

Summary

Foreword

Service Manual Introduction

Introduction to the service manual and Dometic's commitment to providing up-to-date information for servicing RV accessories.

Section 1 Operation

RM2150 Operation Guide

Step-by-step instructions for gas and electric operation of the RM2150 model.

RM2190 Operation Guide

Instructions for gas and electric operation of the RM2190 model, including safety notes.

RM2201 Operation Guide

Procedures for gas and electric operation of the RM2201 model, including temperature regulation.

Section 3 AC Components

AC Heating Element Testing

Details on checking the resistance of the heating element for proper function.

Section 5 DC Components

DC Switch Testing

Instructions for checking the continuity of toggle and selector switches for DC operation.

Piezo Igniter Functionality

Information on the piezo igniter assembly and troubleshooting steps for no spark.

Electrode Inspection and Setting

Guidance on inspecting and setting the electrode for proper spark generation.

DC Heating Element Resistance Check

Procedure for checking the resistance of the DC heating element at room temperature.

RM2201 Thermostat Checks

Details on how the thermostat regulates temperature and checks for proper function.

Section 6 LP Gas Requirements

Section 7 LP Gas Components

LP Gas Shut-Off Valve Inspection

Instructions for checking the LP gas shut-off valve for obstructions.

LP Gas Filter Function and Restriction

Explanation of the LP gas filter's function and how a restriction affects cooling.

LP Gas Thermostat Calibration and Checks

Details on thermostat calibration, gas flow checks, and replacement criteria.

LP Gas Safety Valve Testing

Procedure for testing the safety valve's ability to shut off gas when the flame fails.

Thermocouple and Safety Valve Check

Guidance on checking the thermocouple for proper millivolt output and safety valve function.

Burner Cleaning Procedure

Instructions for cleaning the burner to ensure proper gas flow and flame deflection.

Section 8 Wiring

Section 9 Other Requirements

Refrigerator Leveling Importance

Explains the critical importance of proper leveling for absorption refrigerator operation.

Ventilation Requirements for Cooling

Details the requirements for proper coach vent system operation to dissipate heat.

Air Leak Detection and Prevention

Methods for checking door gaskets and cooling unit seals for air leaks affecting cooling.

Door Alignment and Sealing

Instructions for checking and adjusting door alignment and hinge screws for a proper seal.

Ambient Temperature Effects on Cooling

Discusses how ambient temperature affects cooling unit efficiency and ventilation needs.