RV Appliance and 12V Repair in Zephyrhills: Fridges, Furnaces, Converters

Refrigerators that will not cool, furnaces that click and quit, converters that stopped charging, and batteries that are flat every morning are all diagnosed and repaired at your park lot, storage yard, or driveway across Zephyrhills and east Pasco County. Fridge repairs run $250 to $700, furnace repairs $200 to $800, and 12V electrical work $150 to $900 with converter replacement at the top of that range. Trip fee $75 to $150, and you approve a written number before anything is replaced. Full ranges are on the pricing page.

What we repair on site

Absorption refrigerators. Norcold and Dometic units that cool on one fuel source but not the other, cool poorly in summer, freeze at the top and warm at the bottom, or do nothing at all. Elements, thermistors, igniters, gas valves, control boards, interior fans, and venting. The Norcold and Dometic page covers what fails first on each.

Furnaces. Sail switches, igniter boards, limit switches, blower motors, and burner and exhaust obstructions.

Converters and chargers. Units that output nothing, output the wrong voltage, or cook batteries by never dropping to float.

Batteries and charging. Load testing, replacement, and the converter test that goes with it.

12V distribution. Fuse panels, grounds, lighting circuits, tank sensors, and the corroded connector that makes three unrelated things fail together.

Surge assessment. After a nearby strike, every board in the rig tested and written up in one scope.

What we do not do: residential appliances in park models that have crossed into house construction, and engine-side electrical.

What Florida does to RV appliances

Heat and humidity beat the absorption fridge. An absorption fridge has no compressor. A propane flame or an electric element boils an ammonia solution and drives it around a sealed circuit, and heat is carried away by natural convection up the chimney behind the fridge. That works when the air behind the fridge is cooler than the cabinet by a wide margin. On an August afternoon in Zephyrhills, 90 degrees with a dew point in the 70s and no breeze through a sidewall vent, the convection is weak and the arithmetic runs out. A fair number of “my fridge is broken” calls in summer are a fridge working exactly as designed in conditions it was not designed for. The fix is airflow: fans behind the coils, clear vents, and shade on that wall.

Lightning kills boards. This corridor between Tampa and Orlando is the busiest lightning country in the United States; Florida led the nation in 2025 at 305 lightning events per square mile. A strike near a park with hundreds of rigs on shared pedestal power puts a spike down every shore cord. The converter takes it first, then the fridge board, the AC control board, and the furnace board. We see the pattern every summer, usually in a rig whose owner was up north and found all of it in November.

Batteries sulfate over the summer. A lead-acid bank left on a park lot from April to November with no maintenance charge self-discharges faster in 90-degree heat, and a bank that sits partially discharged sulfates. It arrives at November unable to hold a charge, and dead batteries impersonate everything else: slides that stall, jacks that quit, boards that act possessed. The batteries page has the check.

Corrosion works on every connector. Humidity above 90 percent every night for half the year is hard on crimps, grounds, and board edge connectors. A surprising number of intermittent 12V faults here are a green connector, not a failed part.

The furnace sits idle for months. Winters are short and mild, January averaging 71 by day and 47 at night, so the furnace runs a handful of nights a year and sits the rest. Wasps build in the exhaust, the sail switch corrodes, and the first cold night is when the owner finds out. The furnace page walks through the sequence.

Pricing

Trip fee $75 to $150; labor $125 to $190/hr. Same numbers as the pricing page, and the repair cost calculator prices your system before you call.

When the fridge is done

A failed cooling unit, announced by an ammonia smell or yellow-orange residue on the tubing behind the fridge, ends that appliance. From there, three honest options: a replacement cooling unit on the existing cabinet where one is available, a like-for-like absorption fridge that will have the same Florida limitation as the last one, or a 12V compressor conversion that does not care what the air behind it is doing. For a rig that lives on shore power at a full-hookup park, the compressor conversion is often the right answer and few people are told about it. We lay out all three with real numbers.

How an appliance call runs

Tell us the symptom and which fuel source it happens on, whether anything else failed at the same time (that is the surge tell), and how long the rig sat. On site, we test power to the appliance before the appliance, because a good share of dead fridges and furnaces are a fuse, a ground, or a converter. You get one written number covering everything we found, and if there are two failures you decide which to do now.

Where we work

On site across Zephyrhills, Dade City, Wesley Chapel, San Antonio, Land O’ Lakes, Lutz, and Plant City. The fridge not cooling page has the twenty-minute check that tells you which conversation you are in before anyone drives out.