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Dometic RM2551 - Service Manual

Dometic RM2551
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REFRIGERATION
REFRIGERATORS
Form No. 3317426.000 01/21 | ©2021 Dometic Corporation
WARNING
Cancer and Reproductive Harm
www.P65Warnings.ca.gov
DM2652, DM2662, DM2663, DM2672, DM2682, DM2683, DM2852, DM2862,
DM2872, DM2882, DMR702 (first gen), DMR702-C, DMR702-D, DMR702-E, RM1350,
RM2351, RM2354, RM2451, RM2454, RM2551, RM2554, RM3762, RM3962
EN
Americana and New Generation
Refrigerators
Service Manual ........................2
WARNING: If the information in this manual is not followed
exactly, a fire or explosion may result, causing property
damage, personal injury, or death.
– Do not store or use gasoline or other flammable vapors
and liquids in the vicinity of this or any other appliance.
– WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch.
• Do not use any phone in your recreational vehicle.
• Clear the recreational vehicle of all occupants.
• Turn off the gas supply tank valve(s) or main gas supply.
• Immediately call your gas supplier for instructions.
If you cannot reach your gas supplier, call the fire
department.
– Have the gas system checked and leakage source
corrected by a qualified installer, service agency,
manufacturer or dealer, or the gas supplier.

Table of Contents

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Diagnostic Service Manual34 pages
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Preview: Manual
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Preview: User Manual
User Manual24 pages
Preview: Operating Instructions
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Questions and Answers

  • A
    Amanda SchwartzDec 1, 2025
    What to do if Dometic Refrigerator is not cold enough?
    • M
      martinezalexanderDec 1, 2025
      If your Dometic refrigerator or freezer isn't cold enough, here are a few things to check: * Ensure the plug is firmly connected to the socket and the socket is switched on. Test the socket with another appliance. * Replace any defective fuses. * For models with a thermostat, verify it's properly set. * Make sure the refrigerator is level, as this is crucial for its operation. * Avoid heavy frost build-up by not leaving the door open longer than necessary. * Check for a power failure and ensure the AC supply and control system fuses are intact. * Confirm the door has been closed properly. * Avoid overpacking the refrigerator; arrange food to allow free air circulation. For burner-related issues (dirty, damaged, improperly located burner; clogged burner jet; improperly ins...
  • C
    Christopher ElliottAug 25, 2025
    Why is my Dometic Refrigerator light on but not cooling?
    • S
      Stephanie StewartAug 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.
  • H
    henry74Aug 25, 2025
    Why Dometic Refrigerator works on electric but not gas?
    • B
      Barbara McbrideAug 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.
  • D
    Dylan WebbAug 26, 2025
    Why is my Dometic RM2551 freezing food?
    • B
      Breanna JacksonAug 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.
  • J
    Joseph MuellerAug 27, 2025
    Why is my Dometic RM2551 Refrigerator not cooling well on gas?
    • D
      David SullivanAug 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.
  • A
    adamsanaSep 15, 2025
    Why won't the door close on my Dometic RM2551 Refrigerator?
    • J
      James StewartSep 15, 2025
      If the door of your Dometic Refrigerator does not close properly, the door is likely warped.
  • M
    melissaharrisSep 13, 2025
    What does E1 error mean on a Dometic RM2551?
    • A
      Angela SmithSep 13, 2025
      If 'E1' is displayed and the left thermostat range setting light is flashing on your New Generation Dometic Refrigerator (First generation DMR702 and DMR702-D models only), there is a loose or weak ground, or the gas pressure is too low or absent.
  • M
    Matthew RomeroSep 14, 2025
    What does E0 error mean on a Dometic Refrigerator?
    • T
      tinahamiltonSep 14, 2025
      If 'E0' is displayed and three thermostat range setting lights are flashing on your New Generation Dometic Refrigerator (First generation DMR702 and DMR702-D models only), the DC voltage is too low, or the lower control module cannot handle the AC ripple level.
  • C
    Chelsea BushSep 6, 2025
    Why is the light in my Dometic RM2551 not working?
    • H
      hilljulieSep 6, 2025
      If the interior light in your Dometic Refrigerator is not functioning properly, the interior light is likely defective or broken.
  • T
    tammyparkerSep 3, 2025
    What does the check light mean on a Dometic Americana Refrigerator?
    • M
      Mark LeeSep 3, 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.

Summary

Explanation of Symbols and Safety Instructions

Recognize Safety Information

Explains the safety alert symbol for potential injury hazards.

Understand Signal Words

Defines signal words like DANGER! and WARNING! to indicate hazard levels.

Supplemental Directives

Provides directives for reducing accident and injury risks during service.

General Information

Tools and Materials

Lists recommended tools and materials for servicing Dometic refrigerators.

Model Identification

Explains how to identify refrigerator models using data plates and numbers.

Diagnostic Procedures

Error-Based Diagnostics

Guides diagnosis for Americana and New Generation models based on errors.

Installation Issues

Power Issues

Covers checks for DC and AC power supply issues affecting operation.

Gas Pressure Issues

Discusses issues related to gas pressure and its impact on operation.

Service Procedures

Removing the Refrigerator from an Enclosure

Step-by-step guide to safely remove the refrigerator from its installation.

Performing a Gas Leak Test

Details the procedure for safely checking gas leaks using detection fluid.

Replacing the Burner Assembly

Instructions for removing and replacing the refrigerator's burner assembly.

Dometic RM2551 Specifications

General IconGeneral
BrandDometic
ModelRM2551
CategoryRefrigerator
LanguageEnglish

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