Dometic RML 8551 User Manual (English)

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Questions and Answers:

M
Mary WardAug 17, 2025
Why is my Dometic RML 8551 not cooling sufficiently?
- N
  Nathan ThompsonAug 17, 2025
  There are several reasons why your Dometic Refrigerator might not be cooling well enough: * The ventilation to the unit might be inadequate. Ensure that the ventilation grilles are not covered. * The thermostat setting could be too low. Try setting the thermostat to a higher level. * The condenser may be heavily frosted. Check that the refrigerator door closes properly. * Too much warm food might have been stored inside recently. Allow warm food to cool down before storage. * The appliance may not have been running long enough. Check whether the cooling compartment works after approximately 4 - 5 hours. * Ambient temperatures could be too high. Regularly remove ventilation grilles.
D
Daniel PadillaAug 20, 2025
How to fix Dometic RML 8551 not cooling in gas operation mode?
- W
  Wanda WallerAug 20, 2025
  If your Dometic Refrigerator isn't cooling while in gas operation mode, make sure the gas cylinder isn't empty and replace it if it is. Check that the upstream shut-off device is open. If there's air in the gas pipe, switch off the appliance and start it again; repeat this procedure 3-4 times if necessary.
C
Claudia ReynoldsAug 22, 2025
How to fix a Dometic RML 8551 Refrigerator that does not cool sufficiently?
- B
  Brian Allen MDAug 22, 2025
  If your Dometic Refrigerator isn't cooling sufficiently, here are a few things to check: * Ensure that the ventilation grilles are not covered. * Try setting the thermostat to a higher level. * Make sure the refrigerator door closes properly. * Allow warm food to cool down before placing it inside. * Check if the cooling compartment starts working after about 4 to 5 hours. * Regularly remove the ventilation grilles.
G
Gilbert HobbsAug 26, 2025
Why is my Dometic RML 8551 not cooling in gas operation mode?
- P
  Patricia BaileyAug 26, 2025
  If your Dometic Refrigerator isn't cooling while in gas operation mode, consider these solutions: * Replace the gas cylinder. * Ensure the shut-off device is open. * Try switching the appliance off and on again. Repeat this process 3-4 times if needed.
G
Gregory SanchezAug 28, 2025
What to do if Dometic RML 8551 flame not ignited in GAS/Auto mode?
- A
  Anthony WongAug 28, 2025
  If the flame is not igniting in GAS/Auto mode on your Dometic Refrigerator, ensure that the gas supply is turned on and that the igniter is functioning correctly.
S
Sherry GardnerAug 31, 2025
What to do if Dometic RML 8551 Refrigerator does not cool in 12V operation?
- L
  Larry TaylorAug 31, 2025
  If your Dometic Refrigerator isn't cooling when running on 12V, consider the following: * The on-board fuse may be defective. Try fitting a new fuse. * The on-board battery might be discharged. Check the battery and charge it if necessary. * The engine may not be running. Start the engine. * The heating element might be defective. Please contact Dometic Customer Services for assistance.
U
uandersonSep 3, 2025
What to do if Dometic Refrigerator does not cool in 230V operation?
- B
  Bruce ScottSep 3, 2025
  If your Dometic Refrigerator isn't cooling when running on 230V, consider the following: * The on-board fuse may be defective. Try fitting a new fuse. * The vehicle may not be connected to mains supply voltage. Connect to a mains power supply. * If it is AES, gas operation might be engaged despite connection to the mains supply voltage. In this case (automatically switches back to 230V operation) contact Dometic Customer Services. * The heating element might be defective. In this case contact Dometic Customer Services.
M
Michael DavisSep 5, 2025
How to fix a Dometic RML 8551 that does not cool in gas operation mode?
- J
  johnsonsamuelSep 5, 2025
  If your Dometic Refrigerator isn't cooling when in gas operation mode: * The gas cylinder might be empty. Change the gas cylinder. * The upstream shut-off device might not be open. Open the shut-off device. * There might be air in the gas pipe. Switch off the appliance and start again. Repeat this procedure 3 - 4 times, if necessary.
L
Lauren ShawSep 8, 2025
What to do if my Dometic RML 8551 does not cool in 240V operation?
- A
  Adam MasonSep 8, 2025
  If your Dometic Refrigerator isn't cooling when running on 240V, check the on-board fuse and replace it if it's defective. Ensure the vehicle is properly connected to a mains power supply. If you have an AES (Automatic Energy Selector) model, it might switch to gas operation if the mains supply voltage is insufficient; it will automatically switch back to 230V when the voltage is adequate. If these steps don't resolve the issue, please inform the Dometic Customer Service, as the heating element might be defective.

Dometic RML 8551 Specifications

General

Type	Absorption Refrigerator
Input Voltage (DC)	12 V
Input Voltage (AC)	230 V
Gas Pressure (DIN900)	30 mbar
Refrigerant	R600a
Power Source	12V DC, 230V AC, Gas
Climate class	N

Summary

General

Introduction

Overview of the Dometic Absorption Refrigerator and its benefits.

Guide to operating instructions

Instructions for safe and proper use of the refrigerator.

Copyright protection

Information regarding the copyright of the manual's content.

Explanation of symbols

Defines symbols used in the manual for warnings and information.

Warranty

Details warranty arrangements and conditions for claims.

Limitation of liability

Outlines Dometic's liability and user responsibilities.

Customer services

Provides information on how to contact customer service for support.

Spare parts

Information on ordering spare parts and required details.

Environmental notices

Information on coolant and refrigerants used.

Energy-saving tips

Provides advice on how to use the refrigerator efficiently.

Declaration of conformity

Document stating compliance with relevant EU directives.

Safety instructions

Application according to regulations

Specifies the intended use and regulatory compliance of the refrigerator.

User's responsibility

Defines user obligations for safe operation and handling.

Protection of children

Safety measures for children during disposal and operation.

Working upon and checking

Safety precautions for maintenance and inspection tasks.

Information on coolant

Details the coolant used and safety advice if ammonia is smelled.

Appliances with electronics (MES/AES)

Explains operation of models with electronic control systems.

Operating the refrigerator with gas

Instructions and warnings for using the refrigerator on gas power.

Storing foodstuffs

Guidance on optimal food storage conditions and limitations.

Description of model

Model identification

Explains how to read and understand the model number format.

Refrigerator rating plate

Details the information found on the refrigerator's rating plate.

Technical data

Description of refrigerator

Refrigerator Components

Overview and identification of key refrigerator parts and compartments.

Refrigerator operation

Cleaning

Instructions for cleaning the interior and exterior of the refrigerator.

Maintenance

Guidelines for regular maintenance and checks on the refrigerator.

Electrical operation

Details on operating the refrigerator using mains voltage and 12V DC.

Mains power (230V)

Operating the refrigerator using 230V AC power supply.

Gas operation (liquid gas)

Instructions and precautions for operating the refrigerator with LPG.

Explanation of operating controls

Details on the functions of the refrigerator's controls.

Manual energy selection / automatic ignition MES

Operation for MES models with manual energy selection.

Automatic energy selection / automatic ignition AES

Operation for AES models with automatic energy selection.

RM 8xx0 models

Detailed operation instructions for RM 8xx0 models.

RM 8xx1 models

Detailed operation instructions for RM 8xx1 MES models.

RM 8xx5 models

Detailed operation instructions for RM 8xx5 AES models.

Self-contained gas operation

Operating the refrigerator using self-contained gas and battery power.

Inserting / changing the batteries

Instructions for battery installation and replacement.

Door locking

Instructions on how to lock and unlock the refrigerator door.

Lighting

Information about the interior lighting and its operation.

Positioning the storage racks

Guidance on adjusting the refrigerator's storage racks.

Removable freezer compartment

How to remove and reinstall the freezer compartment.

Exchange of the igniter's battery

Procedure for replacing the battery in the igniter for RM 8xx0 models.

Operation during low outside temperatures

Tips for maintaining performance in cold ambient conditions.

Storing food and making ice cubes

Guidance on proper food storage and ice making.

Storing products in the cooling compartment

Best practices for storing food in the main compartment.

Storing products in the freezer compartment

Guidance on using the freezer compartment for ice and short-term storage.

Refrigerator compartments

Description of the different compartments within the refrigerator.

Making ice cubes

Instructions on how to make ice cubes using the refrigerator.

Shutting off the refrigerator

Procedure for safely switching off the refrigerator.

Defrosting

Steps for defrosting the refrigerator and preventing frost buildup.

Changing the decor panel

Instructions on how to replace the refrigerator's decor panel.

Trouble-shooting

Refrigerator does not cool sufficiently

Identifies causes and solutions for insufficient cooling.

Refrigerator does not cool in gas operation

Troubleshooting steps for gas mode cooling issues.

Refrigerator does not cool in 12V operation

Troubleshooting steps for 12V mode cooling issues.

Refrigerator does not cool in 230V operation

Troubleshooting steps for 230V mode cooling issues.

Information on failure display and trouble-shooting

Explains failure indicators and troubleshooting for electronic models.

Status indicators

Explanation of LED indicators and error codes for MES/AES models.

Operation with batteries (internal power supply)

Troubleshooting for operation using internal batteries.

Related product manuals

Dometic RML 8551 User Manual

Table of Contents

Other manuals for Dometic RML 8551

Questions and Answers:

Dometic RML 8551 Specifications

Summary

General

Introduction

Guide to operating instructions

Copyright protection

Explanation of symbols

Warranty

Limitation of liability

Customer services

Spare parts

Environmental notices

Energy-saving tips

Declaration of conformity

Safety instructions

Application according to regulations

User's responsibility

Protection of children

Working upon and checking

Information on coolant

Appliances with electronics (MES/AES)

Operating the refrigerator with gas

Storing foodstuffs

Description of model

Model identification

Refrigerator rating plate

Technical data

Description of refrigerator

Refrigerator Components

Refrigerator operation

Cleaning

Maintenance

Electrical operation

Mains power (230V)

Gas operation (liquid gas)

Explanation of operating controls

Manual energy selection / automatic ignition MES

Automatic energy selection / automatic ignition AES

RM 8xx0 models

RM 8xx1 models

RM 8xx5 models

Self-contained gas operation

Inserting / changing the batteries

Door locking

Lighting

Positioning the storage racks

Removable freezer compartment

Exchange of the igniter's battery

Operation during low outside temperatures

Storing food and making ice cubes

Storing products in the cooling compartment

Storing products in the freezer compartment

Refrigerator compartments

Making ice cubes

Shutting off the refrigerator

Defrosting

Changing the decor panel

Trouble-shooting

Refrigerator does not cool sufficiently

Refrigerator does not cool in gas operation

Refrigerator does not cool in 12V operation

Refrigerator does not cool in 230V operation

Information on failure display and trouble-shooting

Status indicators

Operation with batteries (internal power supply)

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