Dometic refrigerator · 1 model line
Dometic refrigerator code 22
The official Dometic RUA support page for display fault 22 says to check the battery level or charge, then reset the error with the encoder button.
What code 22 means by model
| Model line | What the manufacturer says | Source |
|---|---|---|
| Dometic RUA | The official Dometic RUA support page lists 22 as a refrigerator fault message. The page states that multiple faults can be present and that the last fault is shown until acknowledged. | My refrigerator is giving me a fault message | RUA Refrigerators | Support |
| Dometic RUAShown as: Display fault 22 | The official Dometic RUA support page for display fault 22 says to check the battery level or charge, then reset the error with the encoder button. | Display shows fault: 22 | RUA Refridgerators | Support |
What you can safely check
- Record the exact fault code and take a photo of the display.
- Check only owner-safe basics such as RV power state and exterior vent obstruction.
- Turn the refrigerator off if cooling is abnormal, the alarm repeats, or the same code returns.
- Record display fault 22 and take a photo of the display.
- Check battery level or charge only from owner-visible RV monitor panels or normal refrigerator controls.
- Reset the error once by pressing the encoder button for 3 seconds until a beep is heard.
Stop and call a technician for
- Internal cooling, LP, electrical, sensor, communication, and control diagnosis belongs to an authorized Dometic service provider.
- A continuing display fault 22 must be handled by an authorized service provider.
- Battery charging, DC supply, wiring, fuses, sensors, and control electronics are service-only.
Do not bypass refrigerator safety controls or work on LP/electrical components. Shut off LP and power if there is gas odor, scorching, abnormal heat, or repeated fault behavior.
Do not service battery charging circuits, DC wiring, fuses, sensors, or refrigerator controls; use only owner-visible battery-level checks and front-panel reset before qualified service.
Write this down before you call
- RUA model label
- serial number
- photo of the display code
- battery level or charge shown by owner-visible monitor
Other codes on Dometic RUA refrigerators
Full table: Dometic RUA refrigerators
- 01 Reset the error with the encoder button and continue to authorized service if the problem…
- 03 Reset the error with the encoder button and continue to authorized service if the problem…
- 05 Reset the error with the encoder button and, if the fault remains, check AC supply becaus…
- 06 Reset the error with the encoder button and continue to authorized service if the problem…
- 07 Reset the error with the encoder button and continue to authorized service if the problem…
- 08 Reset the error with the encoder button and continue to authorized service if the problem…
- 09 Check battery voltage, then reset the error with the encoder button.
- 10 Make sure the door is properly closed, then reset the error with the encoder button if ne…
- 11 Reset the error with the encoder button and continue to authorized service if the problem…
- 12 Reset the error with the encoder button and continue to authorized service if the problem…
- 13 Reset the error with the encoder button and continue to authorized service if the problem…
- 14 Reset the error with the encoder button and continue to authorized service if the problem…
- 15 Reset the error with the encoder button and continue to authorized service if the problem…
- 16 Reset the error with the encoder button and continue to authorized service if the problem…
- 17 Reset the error with the encoder button and continue to authorized service if the problem…
- 18 Reset the error with the encoder button and continue to authorized service if the problem…
- 24 Reset the error with the encoder button and continue to authorized service if the problem…
- 50 Check that the gas bottle is not empty and gas valves are turned on, then reset the error…
- 51 Check that the gas bottle is not empty and gas valves are turned on, then reset the error…
- 52 Check that the gas bottle is not empty and gas valves are turned on, then reset the error…
- 53 Check that the gas bottle is not empty and gas valves are turned on, then reset the error…