Check refrigerator power, ventilation and operating conditions. Start with observations and accessible owner-level checks, not dismantling energized, pressurized or fuel-burning equipment.
Quick symptom-to-action table
| Symptom | Safe first checks | When to stop |
|---|---|---|
| Fridge warm, lights on | Allow adequate cool-down time and check door seals and loading | Spoiled perishable food |
| Absorption model not cooling | Check level requirements, mode display and external vent obstructions | Ammonia smell or yellow residue: shut down and seek service |
| Compressor model not running | Check 12V supply indication and ventilation | Hot wiring or repeated protection shutdown |
Step-by-step diagnosis
- Make the area safe. Park securely, protect people from moving parts and turn off affected equipment if appropriate.
- Record the symptom. Note whether the fault happens on shore power, battery, generator, city water or tank supply, and whether temperature or weather affects it.
- Check the simple indicators. Read the control panel, error codes and owner's manual; verify accessible switches, supply levels and obvious obstructions.
- Change one variable at a time. Re-test only if safe and write down what changed; avoid repeated resets when protection devices trip.
- Escalate early. If the problem involves combustion, mains wiring, structural damage, brakes or persistent leaks, arrange qualified service.
Common scenarios
Fridge warm, lights on
First check: Allow adequate cool-down time and check door seals and loading.
Stop and get help if: Spoiled perishable food.
Absorption model not cooling
First check: Check level requirements, mode display and external vent obstructions.
Stop and get help if: Ammonia smell or yellow residue: shut down and seek service.
Compressor model not running
First check: Check 12V supply indication and ventilation.
Stop and get help if: Hot wiring or repeated protection shutdown.
What not to do
- Use a separate refrigerator thermometer; do not judge food safety by touch.
- Discard unsafe perishables rather than waiting for repairs.
Canadian travel considerations
Cold weather can affect batteries, plumbing, seals and propane performance; heat waves place additional demand on cooling systems. Before remote travel, confirm your roadside assistance coverage, carry a charged phone and backup communication method where cellular coverage is limited, and check current weather and road advisories. Record the model and serial number of the affected appliance to help a Canadian mobile RV technician identify parts.
Decision diagram
Diagram: owner-level triage; stop immediately for an urgent hazard.
Useful reference points
- Transport Canada — Road Transportation for road-safety information
- Environment and Climate Change Canada — Weather for current conditions
- Your RV and appliance manufacturer manuals for model-specific codes and procedures
Fridge checks
Make sure the unit is level, vents are clear and the power source is working. Absorption fridges struggle in extreme heat or when not level.