RV electrical and plumbing: the systems everything else depends on.

What usually fails

Electrical:

• Converter/charger failure — 12V lights dim, batteries never charge on shore power, appliances act haunted.
• House batteries — sulfated, boiled dry, or simply old; weak batteries imitate slide, jack, fridge, and furnace failures.
• Transfer switch and shore power inlet — power on generator but not shore (or vice versa), burnt connections from loose plugs and summer AC loads.
• GFCI and breaker issues — dead outlets, nuisance tripping, half the RV without 120V power.

Plumbing:

• Water pump — runs constantly, cycles with no tap open (a leak announcing itself), or won't run at all.
• PEX fittings and lines — leaks at fittings, especially after freeze nights or years of road vibration.
• Toilet valve and seals — toilet won't hold water in the bowl, or the valve sticks and overfills.
• Tank sensors — notoriously unreliable gauges reading full when empty (usually sensor fouling, not a tank problem).

Symptoms worth calling about

• 12V lights flicker or dim when appliances run
• Batteries dead again after a week in storage
• Half the outlets dead; breaker trips under AC load in summer heat
• Pump cycling at night with everything off
• Water under a cabinet, at the water heater, or a wet bay floor
• Low water pressure, air sputtering from taps

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

On site: battery load testing and replacement, converter diagnosis and swap, transfer switch and inlet repair, outlet/breaker troubleshooting, pump replacement, fitting and line repair, toilet valve/seal service, and leak tracing with pressure testing. These are the highest-success-rate mobile jobs there are.

Honest limits: grey/black tank replacement, major subfloor rot repair from a long-hidden leak, and full re-plumbs are shop work. What a mobile tech can always do is find and stop the leak and give you an honest scope of the damage before it spreads.

Have this ready when you call

• What's dead, what's alive — a quick list (lights? pump? outlets? fridge?)
• Shore power, generator, or battery only when it happens?
• For leaks: where you saw water, and is the pump or city connection still on? (Turn the pump off — it limits damage.)
• Battery age if you know it, and whether the RV sits in storage between trips
• RV year/make/model and where it's parked

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.