Diagnose a dark RV safely without opening energized panels. 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 |
|---|---|---|
| All outlets dead | Check pedestal status, cord seating with power OFF, and whether other sites have power | Damaged plug, heat, burning smell or repeated trip |
| Lights work but outlets do not | Confirm which loads are 12V and which need 120V; check GFCI reset per manual | Wet receptacle or persistent breaker trip |
| Lights dim or fail | Read battery monitor and check accessible disconnect switch | Swollen, hot or leaking battery |
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
All outlets dead
First check: Check pedestal status, cord seating with power OFF, and whether other sites have power.
Stop and get help if: Damaged plug, heat, burning smell or repeated trip.
Lights work but outlets do not
First check: Confirm which loads are 12V and which need 120V; check GFCI reset per manual.
Stop and get help if: Wet receptacle or persistent breaker trip.
Lights dim or fail
First check: Read battery monitor and check accessible disconnect switch.
Stop and get help if: Swollen, hot or leaking battery.
What not to do
- Do not defeat breakers or use improvised adapters.
- For any damaged pedestal or wiring, disconnect if safe and contact campground staff or a licensed electrician.
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
No power on the road
Separate 12-volt from 120-volt problems. Check breakers, battery disconnects and the pedestal before you suspect a major fault.
Hands-on repair steps: see our electrical troubleshooting repair guide.