Dometic ยท 19 codes
Dometic RMD8 refrigerator fault codes
Every fault code, display message, and status light listed in Dometic's manuals for Dometic RMD8xx1 / RMD8xx5; Dometic RMD8xx1 (internal battery models). Select a code for what it means, what you can safely check, and when to call a technician.
Confirm your model
Codes are model-specific. Match the model number on the appliance data label to one of these before using the table:
RMD8501, RMD8505, RMD8551, RMD8555, RMD8xx1, RMD8xx5
Where to look and what to record
- Interior data label model, product number, serial number
- Front display code or lamp state photo
- Power module/display board part number if service requests it
Code table
| Code | What the manufacturer says | Listed for |
|---|---|---|
| AC plug + temperature bars flashing + 20 s beep | The AC heater element or cooling unit is defective | Dometic RMD8xx1 / RMD8xx5 |
| DC battery + temperature bars flashing + 20 s beep | The DC heater element or cooling unit is defective | Dometic RMD8xx1 / RMD8xx5 |
| gas flame + temperature bars flashing + 20 s beep | The burner or cooling unit is defective | Dometic RMD8xx1 / RMD8xx5 |
| temperature bars flashing | The temperature sensor has no contact or is defective | Dometic RMD8xx1 / RMD8xx5 |
| AC plug + warning triangle flashing + 20 s beep | AC power supply is not available or insufficient | Dometic RMD8xx1 / RMD8xx5 |
| DC battery + warning triangle flashing + 20 s beep | DC power supply is not available or insufficient | Dometic RMD8xx1 / RMD8xx5 |
| gas flame + warning triangle flashing + 20 s beep | The burner flame is not ignited during gas or automatic operation | Dometic RMD8xx1 / RMD8xx5 |
| 15 s beep every two minutes | The interior light is switched on / The interior lighting is switched on | Dometic RMD8xx1 / RMD8xx5 |
| battery mode low-voltage 15 s beep | In battery operation, a signal every 15 seconds indicates low voltage detection in the internal battery / An acoustic signal at 15-second intervals indicates undervoltage detection in the internal batteries | Dometic RMD8xx1 (internal battery models) |
| external-to-internal power switching failure | External-to-internal power switching failure as: automatic change-over from external to internal power supply does not function, so the refrigerator does not work and gas mode is not possible even though batteries are inserted. | Dometic RMD8xx1 (internal battery models) |
| 2 + 8 flashing + 20 s beep | 230 V mode is not available or the voltage is too low | Dometic RMD8xx1 / RMD8xx5 |
| 4 + 8 flashing + 20 s beep | 12 V mode is not available or the voltage is too low; AES models also call out the D+ signal | Dometic RMD8xx1 / RMD8xx5 |
| 3 + 8 flashing + 20 s beep | GAS or automatic mode did not ignite the flame | Dometic RMD8xx1 / RMD8xx5 |
| 2 + 7 flashing + 20 s beep | The 230 V heating element is defective | Dometic RMD8xx1 / RMD8xx5 |
| 4 + 7 flashing + 20 s beep | The 12 V heating element is defective | Dometic RMD8xx1 / RMD8xx5 |
| 7 flashing | The temperature sensor has no contact or is defective | Dometic RMD8xx1 / RMD8xx5 |
| 3 + 7 flashing + 20 s beep | The burner or cooling unit is defective | Dometic RMD8xx1 / RMD8xx5 |
| 3 + 8 flashing brightly | During internal-battery operation, the flame was not ignited | Dometic RMD8xx1 (internal battery models) |
| 3 + 7 flashing brightly | During internal-battery operation, the burner or cooling unit is defective | Dometic RMD8xx1 (internal battery models) |
Do not open gas, electrical, or cooling-system components; use only documented front-panel actions and call qualified RV service for repeated faults.