RV refrigerator works on gas but not electric
What this usually means
This is one of the most useful symptoms in RV refrigeration, because it eliminates the expensive part. Both modes heat the same cooling unit, so if gas cools properly the cooling unit is demonstrably fine. The fault sits in the electric side alone: the heating element, its supply, or the control that switches it.
Check this first
Confirm the fridge is actually receiving 120V power — that the coach is on shore power or generator, that the relevant breaker is set, and that other 120V outlets work. A surprising share of these calls are a tripped breaker rather than an appliance fault.
Most likely causes
Ordered by how often each one turns out to be the answer, with the tell that distinguishes it.
Failed electric heating element
most commonEverything else checks out; gas cools normally, electric does nothing at all.
No 120V power reaching the fridge
commonA tripped breaker, or the coach is genuinely running on battery and inverter only.
Control board failure on the electric side
commonThe panel accepts electric mode but the element never energises.
Thermal cutoff or fuse on the element circuit
less commonElectric worked intermittently before stopping entirely.
What you can safely check
- 01
Confirm the coach genuinely has 120V power
Test another outlet. If the coach is on battery and the inverter does not feed the fridge circuit, electric mode has nothing to work with and nothing is broken.
- 02
Check the breaker for the refrigerator circuit
A tripped breaker produces exactly this symptom and is free to rule out.
- 03
Note whether electric ever works briefly
Intermittent operation before total failure points at a thermal cutoff or a connection rather than a dead element.
- 04
Confirm the mode selection is actually taking
Some units auto-select and will sit on gas if they think electric is unavailable. Note what the panel reports rather than what you selected.
What needs a technician
Element testing and replacement, control-board diagnosis, and any work at the 120V connections behind the unit. The element circuit is mains voltage in a confined space behind an appliance, which is technician territory.
Parts typically involved
So you know what a quote should be naming. We publish no prices — real costs vary by market, season and technician, and a number we invented would look authoritative and help nobody.
- Electric heating element
- Thermal cutoff or circuit fuse
- Control board
- Circuit breaker
When to stop troubleshooting
- You are considering testing the element yourself — it is a 120V component in a confined space
- There is any scorching or burnt smell behind the fridge
Can you still travel?
The fridge still cools on propane, and driving is unaffected. Note that running propane appliances while travelling is a decision with its own considerations, including refuelling stops and some tunnel restrictions.
Common questions
- Is this an expensive repair?
- Usually among the cheaper refrigerator outcomes, and the symptom itself is why. Because gas cooling works, the sealed cooling unit — the expensive component — is proven good. What is left is an element, a fuse, a connection or a board, all of which are ordinary parts.
- Can I just run it on propane indefinitely?
- It will keep the food cold, and many owners do exactly that while waiting for a repair. Two considerations: you are consuming propane continuously, and you now have no fallback if the gas side develops a fault. It is a reasonable interim position rather than a permanent one.
Related failures
For the whole system rather than this one symptom, see RV refrigerator repair.
Next step
Work through structured triage for this system and you will end up with a written service brief: what you observed, in what order, and what has not been established yet. It is the document that lets a technician quote properly instead of guessing on arrival.
Being straight about what this is. No technician is signed to any territory yet — not one. We do not match you, dispatch anyone, or promise a call. What you get is the brief, and a request form that copies it to us so we know the demand is real. If you need someone today, take the brief and send it to a local technician directly; it works just as well that way.