RV furnace repair in Salt Lake City is especially important before fall camping season. Salt Lake City temperatures drop below freezing by November and canyon campsites can freeze in September. We repair Suburban and Atwood furnaces, including igniters, sail switches, control boards, and burner tubes, with mobile service available across the Wasatch Front.
The two most common furnace failures we see in Salt Lake City rigs are a sail switch that sticks open and a dirty or cracked igniter. The sail switch tells the furnace the blower motor is running before allowing the gas valve to open. When it sticks, the furnace clicks but never lights. A dirty igniter simply does not get hot enough to fire the burner. Both are $150 to $300 repairs and take under two hours on a mobile visit. If the furnace runs for 10 seconds and shuts off, the high-limit switch or a clogged return air vent is usually the cause.
Beyond the furnace itself, we inspect the ducting, the propane supply line regulator, and the return air filter during any fall furnace service. Canyon camping near Big Cottonwood and American Fork can see overnight lows in the 20s as early as late September. A furnace that worked fine in August may have spider webs or debris in the burner tube after sitting all summer, which causes an ignition lockout on the first cold night. We run the furnace through a full heat cycle and verify it stays lit.
At Salt Lake City's elevation and at higher elevations along the Wasatch Front, propane delivery pressure can read differently than at sea level. A regulator that is out of spec may pass a sea-level test but underperform at altitude, causing the furnace to cycle off early or fail to reach temperature. We verify manifold pressure against altitude-adjusted specs during every furnace diagnostic. It is a quick check that prevents a repeat call in the mountains.
$150 to $600 for most furnace repairs; board or blower motor replacement runs $300 to $600
The most common cause is a dirty or failed igniter. The second is a stuck sail switch that is not sending the blower-running signal to the control board. A third possibility is a closed or low-pressure propane valve. Check that the propane is on and the tank has gas, then call if the problem continues.
This usually points to a clogged return air vent causing the high-limit switch to trip. Check that nothing is blocking the return air grille inside the rig. A failed high-limit switch or a bad flame sensor can also cause this. We carry both parts on the mobile truck.
Every fall before the first camping trip at altitude or in cold weather. Burner tubes collect dust and spider webs over the summer, and the igniter degrades a little with each lighting cycle. A pre-season check is far cheaper than an emergency repair at a canyon campsite.
Yes. Igniter, sail switch, sail switch assembly, and burner tube repairs are all mobile-friendly. Board replacements sometimes need the rig in the shop if the board is in a tight location, but most furnace calls are handled on site.
We run an RV repair operation serving Salt Lake City and the Wasatch Front. We work on motorhomes, fifth wheels, travel trailers, and pop-ups. Utah altitude and high-desert conditions are hard on AC units, water systems, and roof membranes. We give you a written price before any work begins and test everything before we leave the job.
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