Dometic RML 8555 - Service Manual

Other manuals for Dometic RML 8555

Operating Manual64 pages

Installation Manual60 pages

Operating Instructions58 pages

Installation Instructions30 pages

Installation56 pages

Questions and Answers

P
Philip RichardsAug 17, 2025
Why is my Dometic RML 8555 Refrigerator not cooling sufficiently?
- I
  icameronAug 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.
A
Andrea MiddletonAug 20, 2025
How to fix Dometic Refrigerator not cooling in gas operation mode?
- S
  stacey16Aug 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.
T
thoffmanAug 22, 2025
How to fix a Dometic RML 8555 that does not cool sufficiently?
- T
  torresantonioAug 23, 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.
T
Thomas GreenAug 26, 2025
Why is my Dometic Refrigerator not cooling in gas operation mode?
- W
  whuertaAug 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.
W
William MooreAug 28, 2025
What to do if Dometic RML 8555 Refrigerator flame not ignited in GAS/Auto mode?
- R
  Raymond EllisAug 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.
K
kennethserranoAug 31, 2025
What to do if Dometic RML 8555 does not cool in 12V operation?
- A
  Alejandra JacobsAug 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.
E
Erika DavisSep 2, 2025
What to do if Dometic Refrigerator does not cool in 230V operation?
- T
  tguerreroSep 2, 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 VargasSep 5, 2025
How to fix a Dometic Refrigerator that does not cool in gas operation mode?
- M
  Mr. Joshua GardnerSep 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
lmartinSep 8, 2025
What to do if my Dometic Refrigerator does not cool in 240V operation?
- L
  larrymillerSep 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.
C
Christian MooreSep 12, 2025
What to do if my Dometic RML 8555 does not cool in 12V operation?
- A
  Amanda SchaeferSep 12, 2025
  If your Dometic Refrigerator isn't cooling when running on 12V, start by checking the on-board fuse and replace it if necessary. Make sure the on-board battery isn't discharged; check it and charge it if needed. Ensure the engine is running. If these steps don't fix the issue, please inform Dometic Customer Service, as the heating element might be defective.

Summary

Description of Model

Model Identification

Details how to identify the refrigerator model based on its designation.

Refrigerator Rating Plate

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

Technical Data

Description of Refrigerator

General

Additional Features RMD 8 xxx

Details specific features and behaviors for RMD 8xxx models.

Additional Features MES; AES

Describes common features for MES and AES models regarding door and dim-mode.

Additional Features AES

Outlines specific features for AES models concerning door open and failure signals.

Components

Power Modules

Introduces the power modules used in the refrigerators.

Power Module RM 8 xx1 (MES)

Details the components and connections of the RM 8xx1 MES power module.

Power Module RM 8 xx5 (AES)

Details the components and connections of the RM 8xx5 AES power module.

Power Module RMD 8 xx1 (MES)

Details the components and connections of the RMD 8xx1 MES power module.

Power Module RMD 8 xx5 (AES)

Details the components and connections of the RMD 8xx5 AES power module.

Operating Principle

Explains how the electronic components regulate refrigerator functions.

Temperature Sensor NTC

Provides details on the NTC temperature sensor and its resistance values.

Burner Control Device P810

Describes the function, power supply, and measurement points of the burner control device.

Gas Valve GV 100

Details the gas valve's voltage supply, resistance, and measurement points.

Gas Burner

Covers the gas burner, its parts, and cleaning recommendations.

Interior Light and Door Lock

Explains the interior light and door lock unit and their replacement.

Electrical Door Lock Option

Details the optional electrical door lock and its functionality.

Interior Light and Door Lock Recognition (until 2010)

Explains how interior light and door lock are recognized in models up to 2010.

Interior Light and Door Lock Recognition (from 2010)

Explains how door opening is recognized by a micro switch in models from 2010.

LED-PCB Connection Details

Shows connection details for the LED-PCB, illustrating sensor and LED connections.

Wiring Diagrams

RM 8 xx0; RMS 8 xx0

Presents the wiring diagram for RM 8xx0 and RMS 8xx0 models.

RM 8 xx1; RMS 8 xx1

Provides the wiring diagram for RM 8xx1 and RMS 8xx1 models.

RM 8 xx5; RMS 8 xx5

Presents the wiring diagram for RM 8xx5 and RMS 8xx5 models.

RM 8 xx5 with Electrical Door Lock

Shows the wiring diagram for RM 8xx5 models with an electrical door lock.

RML 8 xx0; RMSL 8 xx0

Presents the wiring diagram for RML 8xx0 and RMSL 8xx0 models.

RML 8 xx1; RMSL 8 xx1

Provides the wiring diagram for RML 8xx1 and RMSL 8xx1 models.

RMSL 8 xx5; RMD 8 xx5

Presents the wiring diagram for RMSL 8xx5 and RMD 8xx5 models.

RMD 8 xx1

Shows the wiring diagram for the RMD 8xx1 model.

RMD 8 xx5

Presents the wiring diagram for the RMD 8xx5 model.

Troubleshooting

Information on Failure Display and Trouble-shooting

Provides guidance on interpreting failure displays and troubleshooting.

Status Messages on the Display

Explains the meaning of various status messages indicated by LEDs and the display.

Repair & Maintenance

Entering the Service Mode

Details how to enter the internal service mode for testing and adjustment.

Service Mode MES

Explains the steps to activate and use the service mode for MES models.

Service Mode AES

Explains the steps to activate and use the service mode for AES models.

Displaying Software Versions of Power Module (RMD 8 xxx)

Describes how to display software versions on MES and AES models.

Sequence for Recognizing Heating Element Defect“

Outlines the procedure to identify a heating element defect based on temperature differences.

Controlling the Interior Light via Reed Switch

Explains how the electronics recognize a reed switch for interior light control.

Recognising the Electrical Door Lock

Details how the electronics recognize electrical door locks and their indication.

Removal of the Door

Provides instructions on how to remove the refrigerator door.

Removal of the Fascia

Explains how to loosen and remove the fascia panel.

Removing Interior Light and Door Lock

Details the process for removing the interior light and door lock unit.

Electrical Doorlock (Was an Option)

Describes the procedure to remove an optional electrical door lock device.

Flowcharts

Presents flowcharts for troubleshooting various issues like interior light and gas mode.

Testplan MES

Provides a test plan for MES models covering AC, DC, Gas, and Interior light functions.

Testplan AES

Provides a test plan for AES models covering AC, DC, Gas, Interior light, and AES mode.

Appendix

List of Gas Burners and Jets

Lists gas burner part numbers, gas pressure, jet ID, and thermal input.

MES Models Software Changes (RM 8 xx1)

Lists specific software changes and their details for MES models (RM 8xx1).

AES Models Software Changes (RM 8 xx5)

Lists specific software changes and their details for AES models (RM 8xx5).

Dometic RML 8555 Specifications

General

Type	Absorption Refrigerator
Capacity	55 liters
Dimensions (H x W x D)	845 x 500 x 545 mm
Weight	28 kg
Input Voltage (DC)	12V
Input Voltage (AC)	230V
Rated Input Power (AC)	135 W
Power Source	12V DC, 230V AC, Gas
Energy source	Gas / 12V / 230V
Climate class	T