Dometic Interior lighting is switched on fault code — Refrigerator
Applies to: RM8xxx, RMS8xxx, RML8xxx, RMSL8xxx, RM8501, RM8505, RMS8501, RMS8505, RML8555, RMSL8505
What Interior lighting is switched on means
The Dometic RM8 support page says the interior-lighting fault can be caused by the refrigerator door not being completely closed or being left in parking mode.
Owner-safe checks
- Make sure the refrigerator door is completely closed.
- Confirm the door is not set to parking mode.
- Record whether the fault continues with the door fully closed.
Service-only work
- Door switch, latch, lighting circuit, wiring, and refrigerator electronics diagnosis are service-only if the fault repeats with the door closed.
Safety boundary
Do not service electrical circuits, wiring, or refrigerator controls; use only normal door and front-panel checks and call qualified service for repeated faults.
Official sources
Related symptom guides
- RV refrigerator is not cooling
- Dometic legacy absorption refrigerator display faults
- Pre-service checklist for RV appliance calls