Dometic NRXD0050, NRXD0060 (C/S)
Official technical documentation and workshop diagnostics for NRX.
Technical Specifications
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|
N/A | The refrigerator does not work. Possible Cause: The fuse in the DC cable is defective. | Replace the fuse. | DIY Safe |
N/A | The refrigerator does not work. Possible Cause: The vehicle fuse has blown. | Replace the vehicle fuse. Refer to the operating manual of your vehicle. | DIY Safe |
N/A | The refrigerator does not work. Possible Cause: The vehicle battery is discharged. | Test the battery and charge it. | DIY Safe |
N/A | The refrigerator does not work. Possible Cause: The ignition is not switched on. | Switch on the ignition. | DIY Safe |
N/A | The refrigerator does not work. Possible Cause: The temperature at the compressor is too low (< 0 °C). | Close/cover all external ventilation grilles completely with insulation material. | DIY Safe |
N/A | The refrigerator does not work. Possible Cause: The refrigerator switches off automatically if the voltage is insufficient. (End-of-discharge voltage: 10.4 V) | Load the battery. The refrigerator will start again automatically. (Cut-in voltage: 11.7 V) | DIY Safe |
N/A | Poor cooling, increase in interior temperature. Compressor runs continuously. Possible Cause: The ventilation around the cooling unit is not sufficient. | Check that the ventilation grille is not obstructed. Move the refrigerator to another location. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. Compressor runs continuously. Possible Cause: The interior walls are iced up. | Check whether the refrigerator door closes properly. Ensure that the refrigerator seal fits correctly and is not damaged. Defrost the refrigerator. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. Compressor runs continuously. Possible Cause: The temperature is set too high. | Set a lower temperature. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. Possible Cause: The ambient temperature is too high. | Remove the ventilation grille for a while so that warm air can escape quicker. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. Possible Cause: Too much food was placed in the refrigerator at the same time. | Remove some of the food. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. Possible Cause: Too much warm food was placed in the refrigerator at the same time. | Remove the warm food and leave it to cool down before putting it in again. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. Possible Cause: The refrigerator has not been operating for very long. | Check the temperature again after 4 h / 5 h. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. Possible Cause: The condenser is dirty. | Clean the condenser. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. Possible Cause: The fan is defective. | Contact an authorised service agent. | Professional Intervention Required |
N/A | Poor cooling, increase in interior temperature. The compressor does not run often. Possible Cause: The battery capacity is exhausted. | Charge the battery. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. The compressor does not run often. Possible Cause: There is an interruption in the battery electronics connection. | Establish a connection. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. The compressor does not run often. Possible Cause: The main switch is defective (if installed). | Replace the main switch. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. The compressor does not run often. Possible Cause: The additional supply line fuse has blown (if installed). | Replace the supply line fuse. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. The compressor does not run (battery connection). Possible Cause: The battery voltage is too low. | Charge the battery. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. The compressor does not run (battery connection). Possible Cause: The battery capacity too low. | Replace the battery. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. The compressor does not run (battery connection). Possible Cause: The cables are loose. The contact is poor (corrosion). | Establish a connection. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. The compressor does not run (battery connection). Possible Cause: The cable cross section is too small. | Replace the cable. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. The compressor does not run (battery connection). Possible Cause: The compressor is defective. | Contact an authorised service agent. | Professional Intervention Required |
N/A | Poor cooling, increase in interior temperature. The compressor does not run (connection to AC supply). Possible Cause: The connection supply line is interrupted. | Establish a connection. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. The compressor does not run (connection to AC supply). Possible Cause: The main switch is defective (if installed). | Replace the main switch. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. The compressor does not run (connection to AC supply). Possible Cause: The additional supply line fuse has blown (if installed). | Replace the supply line fuse. | DIY Safe |
N/A | Poor cooling, increase in interior temperature. The compressor does not run (connection to AC supply). Possible Cause: The compressor is defective. | Contact an authorised service agent. | Professional Intervention Required |
N/A | Unusual noises. Possible Cause: A component of the refrigerant circuit cannot move freely (touching the wall). | Bend the component carefully away from the obstruction. | DIY Safe |
N/A | Unusual noises. Possible Cause: There is a foreign object stuck between the cooling unit and the wall. | Remove the foreign object. | DIY Safe |
N/A | Unusual noises. Possible Cause: Fan noise. | Contact an authorised service agent. | Professional Intervention Required |
N/A | The drawer opens unintentionally when moving (e.g. while driving). Possible Cause: The door latch position is not set correctly. | Adjust the door latch position. | DIY Safe |
N/A | The drawer does not close properly. Possible Cause: The door latch position is not set correctly. | Adjust the door latch position. | DIY Safe |
N/A | The drawer does not close properly. Possible Cause: The door latch position is adjusted but the drawer is not properly latched. | Ensure that the drawer is properly latched and secured when closing. | DIY Safe |
1 flash | Error indicator LED flashing orange Possible Cause: The supply voltage is outside of the set range (Under or over voltage). | Check the 12V/24V supply line, inspect fuses, and ensure connections are secure. If the issue remains unresolved, contact an authorised service agent. | DIY Check / Tech Fallback |
2 flashes | Error indicator LED flashing orange Possible Cause: The fan load on the electronics unit is more than 1 A (Excessive fan current). | Check fan and wiring. If the issue remains unresolved, contact an authorised service agent. | DIY Check / Tech Fallback |
3 flashes | Error indicator LED flashing orange Possible Cause: The rotor is jammed or the pressure difference in the cooling system is too high (The motor does not start). | Check for obstructions around the compressor. If the issue remains unresolved, contact an authorised service agent. | DIY Check / Tech Fallback |
4 flashes | Error indicator LED flashing orange Possible Cause: If the cooling system is overloaded, the minimum speed of the motor cannot be maintained (Speed too low). | Reduce load and ensure adequate ventilation. If the issue remains unresolved, contact an authorised service agent. | DIY Check / Tech Fallback |
5 flashes | Error indicator LED flashing orange Possible Cause: If the cooling system is loaded too heavily or the temperature is set too high, the electronics can overheat (Overheating of the electronics unit). | Improve ventilation and reduce ambient temperature. If the issue remains unresolved, contact an authorised service agent. | DIY Check / Tech Fallback |
Constantly | Error indicator LED flashing orange Possible Cause: Temperature sensor is defective (Temperature sensor errors). | Contact an authorised service agent. | Professional Intervention Required |
Frequently Asked Questions
Q: What does climate class of SN (Sub Normal) mean?
The climate class SN (Sub Normal) defines the intended ambient temperature range for the absorption fridge's optimal operation.
Q: What’s the cooling performance in warmer ambient temperatures?
Cooling performance for absorption fridges is affected by warmer ambient temperatures. Ensure proper ventilation around the unit as detailed in the manual to maintain performance.
Q: How to operate an RMxxxx with a solar panel?
To operate an RMxxxx series absorption fridge with a solar panel, ensure the solar system provides adequate 12V DC power or sufficient battery storage to handle the power requirements, particularly when running on DC mode.
Q: My RMxxxx needs to be replaced. What would be an alternative?
When replacing an RMxxxx series refrigerator, look for current Dometic absorption or compressor models matching the physical dimensions and energy source requirements of your motorhome cutout.
Q: The refrigerator does not work In AC power mode?
Check if the vehicle is properly connected to the AC mains supply, verify that the AC fuse in the motorhome is intact, and ensure the refrigerator is switched on to AC mode on the control panel.
Q: The refrigerator does not work In DC power mode?
DC mode (12V) typically only works while the vehicle engine is running and the alternator is supplying power, preventing the vehicle starter battery from draining. Check the 12V DC fuses, vehicle ignition connection, and input voltage at the refrigerator terminals.
Q: The refrigerator does not work In GAS mode?
Ensure the gas cylinder valve is open, the main gas shut-off valves in the motorhome are open, and there is no air trapped in the gas line (try igniting another gas appliance first). Check if the igniter is sparking and that the burner is clean.
Q: In automatic mode: The refrigerator is being operated with gas although it is connected to The AC power supply?
In automatic energy selection mode, if the AC voltage is outside the acceptable tolerance range or unstable, the control system automatically switches to gas mode as a safety fallback. Check the AC supply voltage and connections.
Q: The refrigerator is not cooling adequately?
Verify that ventilation grilles are not blocked, check that the thermostat is set correctly, ensure the door seals tightly, do not overpack the interior restricting airflow, and verify that the selected energy source (AC, DC, or Gas) is actively functioning.
Q: WARNING type fault messages
WARNING type fault messages indicate a non-critical operational issue or prompt. Consult the user manual for the specific warning code displayed on the 10-series control panel to take corrective action.
Q: ERROR type fault messages
ERROR type fault messages indicate a critical system failure that stops the refrigerator from functioning safely on the current energy source. Check the specific error code on the display, troubleshoot the underlying power, gas, or ventilation issue, or contact customer service.