Dometic RM2451 User Manual (English)

Other manuals for Dometic RM2451

Service Manual52 pages

Installation Manual44 pages

Diagnostic Service Manual34 pages

Operating Instructions28 pages

Installation Instructions54 pages

User Manual24 pages

Questions and Answers:

D
davisheatherAug 22, 2025
Why is my Dometic RM2451 Refrigerator not working and the interior light is off?
- S
  Susan MontgomeryAug 23, 2025
  Your Dometic Refrigerator might not be working, and the interior light might be off due to several reasons. It could be that the mode or a switch is set incorrectly. Also, the DC voltage might be too low or absent. Another potential cause is a blown thermal fuse or thermo fuse. Faulty, shorted, or miswired wiring can also be the reason. Finally, the upper control module might be defective, or there could be a short or failed circuit in the lower control module.
P
Patrick RamirezAug 25, 2025
Why is my Dometic RM2451 light on but not cooling?
- L
  lauren95Aug 25, 2025
  If your Dometic Refrigerator isn't operating but the interior light is on, the issue might stem from a few potential causes. Check if the mode or a switch is set incorrectly. It's also possible that the DC voltage is too low or absent. The thermistor might not be operating within the proper temperature range. Another potential cause is that the communication wire harness has lost continuity or is shorted to ground. Lastly, there might be a short or a failed circuit in the lower control module.
B
barnesmatthewAug 25, 2025
Why Dometic RM2451 Refrigerator works on electric but not gas?
- M
  Miguel GomezAug 26, 2025
  If your Dometic Refrigerator operates in electric mode but not in gas mode, several issues could be the cause. First, check if the mode or a switch is set incorrectly. The gas pressure might be too low or absent. Ensure the knob on the gas valve hasn't been turned to the off or closed position. Altitude might be affecting the refrigerator's operation in gas mode. The re-igniter might not be creating a spark, or the resistance on the gas valve solenoid might be out of specification. The orifice could be blocked or incorrectly sized. For older Americana models, the thermocouple might be defective. The burner could be blocked, the wiring might be faulty, shorted, or miswired, or there could be a short or a failed circuit in the lower control module.
G
gsmithAug 26, 2025
Why is my Dometic RM2451 freezing food?
- R
  Robin MccoyAug 27, 2025
  If the fresh food compartment in your Dometic Refrigerator is freezing, it could be because the thermistor is not operating within the proper temperature range, or there is a short or a failed circuit in the lower control module.
B
brandywhiteAug 27, 2025
Why is my Dometic RM2451 not cooling well on gas?
- L
  leonardperezAug 27, 2025
  If your Dometic Refrigerator operates in gas mode but does not cool properly, the flue baffle is likely out of place or damaged.
K
Kaylee HardingAug 28, 2025
What to do if my Dometic Refrigerator does not work in gas operation mode?
- C
  Craig GibsonAug 29, 2025
  If your Dometic Refrigerator isn't working in gas operation mode, the gas bottle might be empty, so try changing it. Alternatively, there might be air in the gas pipe. To remove the air, switch the refrigerator on and off 3-4 times.
S
shannonturnerAug 30, 2025
What to do if my Dometic RM2451 Refrigerator does not work on gas?
- S
  saraharnoldAug 30, 2025
  If your Dometic Refrigerator isn't working on gas, the gas bottle might be empty, so you should change it. Alternatively, there might be air in the gas pipe. To remove the air, try switching the refrigerator on and off 3-4 times.
E
Erin MorganSep 1, 2025
Why my Dometic Refrigerator does not work in gas operation mode?
- T
  Terry SmithSep 1, 2025
  If your Dometic refrigerator isn't working in gas operation mode, check if the gas bottle is empty and replace it if needed. Also, there might be air in the gas pipe; try removing it by switching the refrigerator on and off 3-4 times.
E
Erin PatrickSep 2, 2025
Why is my Dometic RM2451 not cold enough?
- L
  lbondSep 2, 2025
  If your Dometic Refrigerator or freezer isn't getting cold enough, several factors could be at play. Improper installation might have caused an imbalance in the airflow around the refrigerator. The fan switch could be defective. Ensure the refrigerator level is within tolerance. A warped door could also be the cause. For RM1350 models, the relay might be defective, or the flapper guide might need adjustment. Additionally, the thermistor might not be operating within the proper temperature range, or there could be a short or failed circuit in the lower control module.
H
hzhangSep 3, 2025
What does the check light mean on a Dometic Americana Refrigerator?
- T
  Timothy Hughes MDSep 4, 2025
  If the check indicator lamp is on in your Americana Dometic Refrigerator, the DC voltage is too low, or there is a loose or weak ground.

Dometic RM2451 Specifications

General

Brand	Dometic
Model	RM2451
Category	Refrigerator
Language	English

Summary

Introduction and Safety

Manual Symbols Guide

Explains the meaning of WARNING, CAUTION, and informational symbols used in the manual.

Installation Instructions

Certification and Code Requirements

Outlines standards and codes for installation in the US and Canada.

Ventilation Requirements

Details general information and specific requirements for air circulation and venting.

Ventilation Details

Ventilation Heights

Specifies minimum ventilation heights for different models and vent configurations.

Clearances for Installation

Lists minimum clearances to combustible materials for safe installation.

Installation Dimensions

Overall and Recess Dimensions

Provides overall and recess dimensions for various refrigerator models.

Installation Procedure

Installing the Refrigerator

Steps for physically placing the unit into its designated space.

Securing the Refrigerator (RM2351 & RM2354)

Instructions for securing RM2351 and RM2354 models using screws.

Securing Other Refrigerator Models

Instructions for securing various other models using screws and panels.

Installation Connections and Safety Checks

Drain Water Hose Installation

Details how to install and route the drain water hose to prevent damage and kinks.

Gas and Electrical Connections

Covers gas connection requirements and leak testing procedures.

LP Gas Safety Shut-off Test

Step-by-step guide to test the gas safety shut-off feature.

Electrical Hookups

120V AC Power Connection

Instructions for connecting the refrigerator to a 120V AC power source.

12V DC Power Connection

Details the requirements and procedure for connecting the 12V DC power supply.

Door Mounting Instructions

Reversing the Door Swing

Explains how to change the door opening direction using a special hinge kit.

Mounting Door Panels

Guides on how to attach optional door insert panels to refrigerator doors.

Door Panel Attachment and Refrigerator Removal

Snap-in Panel Mounting Steps

Detailed steps for attaching refrigerator door panels using a snap-in mechanism.

Refrigerator Removal Procedure

Provides the procedure for safely sliding the refrigerator out of its compartment.

Operating Instructions

Refrigerator Overview

Provides a general overview of the refrigerator's absorption cooling system and leveling requirements.

Automatic Energy Selector System

Describes the automatic system that selects between AC, DC, and GAS power sources.

Modes of Operation

Details the AUTO, GAS, and DC modes of operation and their indicators.

Advanced Operation Modes

DC Mode Operation

Explains the functionality and limitations of the DC operation mode.

Limp Mode Operation

Describes how the refrigerator operates in a reduced functionality mode due to component failure.

Climate and Low Ambient Controls

Details climate control for condensation and low ambient operation features.

Thermostat and Control Panel

Explains thermostat function and identifies control panel components.

Control Panel Variations

Model-Specific Control Panels

Diagrams and descriptions of control panels for various Dometic refrigerator models.

Instructions for Use

Startup Procedures

Provides essential checks and steps before starting the refrigerator's operation.

Turning Refrigerator On and Off

Instructions on how to turn the refrigerator on and select the desired operating mode.

Operating Special Features

Details how to activate climate control and low ambient operation features.

Ice Maker Operation

Using the Ice Maker

Information on how the ice maker works and how to adjust cube size.

Water Supply Requirements

Specifies the water supply pressure and line requirements for the ice maker.

Storage Compartments Guide

Refrigerator Volume Specifications

Table listing the total refrigerated volume for different Dometic refrigerator models.

Food Storage Guidance

Provides advice on storing food in fresh and frozen compartments for optimal results.

Ice Cube Production

Explains how to make ice cubes and best practices for faster ice production.

Shelf Management

Removing and Replacing Shelves

Step-by-step instructions on how to remove and reinstall refrigerator shelves.

Product Care and Winterization

Defrosting the Refrigerator

Detailed instructions for safely defrosting the refrigerator and its components.

Draining the Ice Maker

Procedures for draining the ice maker for storage or to prevent freezing.

Winterizing the Refrigerator

Guidelines for preparing the refrigerator for extended storage or winter conditions.

Cleaning and Component Replacement

Cleaning Procedures

Instructions for cleaning the interior and exterior of the refrigerator.

Halogen Lamp Replacement

Steps for replacing the interior halogen lamp, including safety precautions.

Using the Airing Position Card

Information on using the airing position card to keep doors ajar during storage.

Maintenance and Service

Electric Equipment Maintenance

Information regarding the electric heaters and their replacement.

Fuse Replacement

Instructions for replacing fuses located in the power module and inline.

Periodic Maintenance Checks

Control System and Connections Check

Outlines routine checks for the control system, connections, and LP gas pressure.

LP Gas Pressure Check

Guidance on measuring and adjusting the LP gas pressure.

Flue Baffle and Burner Cleaning

Steps for cleaning the flue baffle and burner assembly for optimal performance.

Troubleshooting Guide

Common Symptoms and Solutions

A table listing common symptoms and their corresponding checks and remedial actions.

Appendix A - Spare Parts

Spare Parts List for Models

A list of commonly used spare parts for various Dometic refrigerator models.

Appendix B - Consumer Support

Dometic Website and Service Information

Guidance on using the Dometic website for product info, service, and spare parts.

Appliance Registration

Instructions on how to register the appliance for warranty and communication.

Appendix C - Warranty and Maintenance

Important Warranty Information

Highlights the importance of the Dometic refrigerator warranty and maintenance schedule.

Limited Three-Year Warranty

Warranty Terms and Conditions

Details the terms, conditions, and coverage of the Dometic refrigerator's three-year limited warranty.

Appendix D - Rearview Equipment

RM2351 Component Identification

Rearview diagram identifying components for the RM2351 model.

RM2354 Component Identification

Rearview diagram identifying components for the RM2354 model.

Rearview Equipment Details

RM2451-RM2554 Component Identification

Rearview diagram identifying components for RM2451, RM2454, RM2551, and RM2554 models.

DM2652-NDM1062 Component Identification

Rearview diagram identifying components for DM2652, DM2662, DM2663, DM2852, DM2862, DM3862, and NDM1062 models.

Specific Rearview Equipment

NDM1062 (Ice Maker) Component Identification

Rearview diagram for NDM1062 with ice maker, identifying components.

NDR1292 Component Identification

Rearview diagram identifying components for the NDR1292 model.

Appendix E - Wiring Diagrams

Wiring Diagrams: RM2351, RM2451, RM2551

Wiring diagram for RM2351, RM2451, and RM2551 models.

Wiring Diagrams: RM2354, RM2454, RM2554

Wiring diagram for RM2354, RM2454, and RM2554 models.

Wiring Diagram Details

Wiring Diagrams: DM2652, DM2852, DM2862

Wiring diagram for DM2652, DM2852, and DM2862 models.

Wiring Diagrams: DM2652, DM2852, DM2862 (Optional Fan)

Wiring diagram for DM2652, DM2852, DM2862 models with optional fan.

Additional Wiring Diagrams

Wiring Diagram: DM2663

Wiring diagram for the DM2663 model.

Wiring Diagram: DM3862

Wiring diagram for the DM3862 model.

NDM1062 Wiring Diagrams

NDM1062 (Stainless Steel Doors)

Wiring diagram for NDM1062 with stainless steel doors.

NDM1062 (Stainless Steel Doors & Ice Maker)

Wiring diagram for NDM1062 with stainless steel doors and ice maker.

NDM1062 Wiring Variations

NDM1062 (Door Insert Panels)

Wiring diagram for NDM1062 with door insert panels.

NDM1062 (Door Insert Panels & Ice Maker)

Wiring diagram for NDM1062 with door insert panels and ice maker.

NDR1292 Wiring Diagrams

NDR1292 (Stainless Steel Doors)

Wiring diagram for NDR1292 with stainless steel doors.

NDR1292 (Door Insert Panels)

Wiring diagram for NDR1292 with door insert panels.

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