No heat or no hot water? Both are very mobile-fixable.

What usually fails

• Sail switch and limit switch (furnace) — the fan runs, the burner never lights, the fan shuts back down. The single most common furnace pattern.
• Igniter / electrode and control board — clicking with no ignition, or ignition that won't stay lit, on both furnaces and water heaters.
• Mud daubers and pests — nests in furnace exhaust tubes and water heater burners are extremely common after storage in our area.
• Water heater element and thermostat/ECO — heats on propane but not electric usually means the 120V side: element or switch.
• Anode rod neglect (Suburban) — a consumed anode rod lets the tank itself corrode; more maintenance than repair, until it isn't.
• Low propane pressure / regulator issues — multiple gas appliances misbehaving at once points upstream, not at the appliance.

Symptoms worth calling about

• Furnace fan runs ~30 seconds then quits, no heat
• Furnace heats, then cycles off and on rapidly
• Water heater won't light, or lights and goes out
• Hot water runs out suspiciously fast, or is lukewarm only
• Soot around the water heater or furnace exterior panel
• Gas smell near any appliance — stop, ventilate, and call; treat this as urgent

What a mobile tech can and can't do on site

On site: full ignition-sequence diagnosis, sail/limit switch and board replacement, burner cleaning and pest-nest removal, water heater element/thermostat service, anode rod replacement, propane pressure testing, and complete furnace or water heater replacement in many cases — both are outside-access appliances by design.

Honest limits: a water heater tank that has split (often from freeze damage) is a replacement, not a repair, and extensive ducting problems hidden inside walls or under floors can exceed what makes sense in the field. Carbon-monoxide safety checks are part of any furnace job — if a heat exchanger is cracked, the furnace is done, and no one should talk you out of that.

Have this ready when you call

• What exactly happens when you turn it on — sequence and timing ("fan runs, clicks, stops")
• Does the stove light and stay lit? (Quick propane sanity check a tech will ask about)
• Any fault lights on the water heater switch panel
• When did it last work, and was the RV in storage?
• RV year/make/model and where it's parked

Furnace repair where winter is real

Our two foothill furnace pages — the places where a furnace is a heating system, not an accessory:

• RV furnace repair in Grass Valley — six-month heating seasons and full-timers at 2,400 feet.
• RV furnace repair in Placerville — first-cold-snap failures on hillside pads along Highway 50.

Other services

Get a mobile tech to look at it

Tell us what's happening and where the RV is parked, and we'll match you with one local mobile technician for your area — not a shared list of companies.

Educational note: any cost ranges mentioned on this site are typical, general information only. Your technician confirms the service-call fee and an exact quote directly with you before work begins.