Dometic E3 fault code — Refrigerator
Applies to: RM3762, RM3762SL, RM3962, RM3962SL, RM3962SF
What E3 means
The RM3762/RM3962 operating instructions list E3 as a cooling unit malfunction.
Owner-safe checks
- Turn the refrigerator off and protect food if cooling has stopped.
- If you smell ammonia or see leakage, ventilate and do not use the refrigerator.
Service-only work
- Cooling-unit inspection, replacement, or leak diagnosis is service-only.
Safety boundary
A cooling-unit malfunction is not owner repairable; stop use when cooling is unsafe and contact a Dometic service center.
Official sources
Related symptom guides
- RV refrigerator is not cooling
- Dometic legacy absorption refrigerator display faults
- Pre-service checklist for RV appliance calls