Common RV Furnace Failures in Colorado
Front Range winters expose every weak point in an RV heating system. High altitude changes propane combustion, and long storage lets dust and spiders pack the burner. The failures behind most "no heat" calls:
- Blower runs but no ignition — failed igniter or electrode, weak sail switch, or a gas valve not opening
- Furnace short-cycles — dirty flame sensor, high-limit switch tripping from blocked ducts or a weak blower
- No response at the thermostat — 12V supply problems, blown fuses, corroded connections, failed control board
- Clicking with no flame — empty or frozen propane flow, regulator failure, or air in the lines after a tank swap
- Soot or odd smells — burner misalignment or exhaust blockage; stop using the furnace and call — this one is a safety issue
High-Altitude Propane, Handled
Denver sits at 5,280 ft and many nearby campgrounds are far higher. Propane appliances tuned at sea level can run rich, foul their burners, and shut down on safety limits up here. We diagnose with altitude in mind — checking gas pressure at the regulator, combustion air flow, and duct restrictions — so the fix holds on your next trip into the mountains, not just in the driveway.
Winter warning: if your furnace dies in freezing weather, your water lines are next. Ask about emergency scheduling — and about winterizing if the rig will sit unheated.
Mobile Service, One Visit
We stock the parts that actually fail — sail switches, igniter boards, limit switches, blower motors for common Suburban and Atwood models — so most Denver-metro furnace calls end with working heat the same day. Storage lots, campgrounds, and driveways from Castle Rock to Broomfield.
Related Services
No hot water either? That's often the same propane-supply problem — see RV water heater repair. Fridge acting up on gas? See RV refrigerator repair.