RV Appliance & 12V Electrical Repair in Sebring, Florida

Fridge running warm, furnace blowing cold, converter dead after a storm, batteries flat again: appliance failures are the daily bread of mobile RV repair, and all of it gets fixed at your site across Sebring and Highlands County. The honest headline: many “dead” appliances need a small part or a cleaning, not a replacement. Refrigerator repairs run $250 to $700, furnace repairs $200 to $800, converter and 12V work $150 to $900, and the diagnosis should always come before the quote. Trip fee $75 to $150, full pricing here. Water heaters are covered under plumbing and water heater repair.

Refrigerators: what actually goes wrong here

Most rigs on the US 27 resorts carry a Norcold or Dometic absorption refrigerator, the classic two-way or three-way unit that cools by heating an ammonia solution and rejecting the heat out the back through a vent path in the sidewall. In Highlands County that vent path is the problem more often than the fridge is.

A suffocated vent path. Oak pollen in spring, mildew all summer, and mud daubers building in the warm, sheltered space behind the fridge. A condenser that cannot shed heat cannot cool, and a fridge that was fine in February falls behind in June. Cleaning the vent path and, on rigs that need it, adding a thermostatic condenser fan is the single most effective fridge repair in this county, and it is cheap.

Boards and igniters. A fridge that will not run on propane but works on shore power, or clicks and throws a fault code, is usually the igniter, the gas valve, or the control board. Boards are also a common casualty of a lightning surge, so if the fault code appeared the afternoon of a storm, that is the first thing to test for.

The electric element. Fine on gas, warm on 120V: the heating element on the electric side has failed. Routine.

The cooling unit itself. Ammonia smell, yellow residue at the burner, no cooling at all even at 70°F overnight. That is the end of the cooling unit, and it becomes a replace-the-cooling-unit-or-replace-the-fridge decision with two honest numbers. Full-timers who summer here often land on a residential compressor fridge conversion, a bigger job with real trade-offs (constant battery draw, an inverter) worth thinking through without anyone pushing you. The Norcold and Dometic page covers what fails first on each, and the fridge not cooling page has the fifteen-minute check.

Furnaces: yes, you need one in Florida

Newcomers laugh until their first clear January night. Sebring’s January average low is around 49°F, and clear, still nights run colder than that on the lakes and in the low ground around Istokpoga. A rig with no furnace is a cold box by 3 a.m., and furnace calls cluster in December when units that sat idle since March are asked to work again.

The classic failure chain: blower runs, no heat, then shutdown. That is a sail switch that is not proving airflow, a dirty or failed igniter, or a gas-supply issue upstream. After a humid summer, add a mud dauber nest in the burner or exhaust and a corroded igniter electrode to the list. Furnace work is methodical, gas-adjacent diagnosis; repairs typically run $200 to $800.

Washer-dryer combos: Splendide no heat, fault codes, and the board

The usual RV washer-dryer is a Splendide combo, and it comes in two kinds. A vented combo (the 2100XC, the WDV2200XCD) heats room air, tumbles it through the clothes and blows it outside through a vent. A ventless combo (the 7100XC, the WDC7200XCD) heats the drum to draw the moisture out as steam, cools the outer tub with cold water so the steam condenses, and pumps that water down the drain. Which one you have changes the “dryer runs but no heat” diagnosis, so tell us the model on the door when you write in.

Fault codes. On the current models the display shows the code directly. Splendide’s own troubleshooting tables cover the common ones:

For any other code (Splendide gives F1E1 and F4 as examples), the manual says to switch the machine off, unplug it for about a minute and power it back up. A code that comes back is a repair. The older 2100XC and 7100XC show faults by flashing the door lock light together with other lights, and Splendide’s service training guide decodes them. Three of those point at the electronics: F09 (setup file error, the board’s memory not programmed or damaged), F12 (no communication between the control panel board and the main board) and F18 (a communication error between the microprocessor and the signal processor, where the guide’s answer is to replace the module board). F13 is the dryer’s temperature sensor or a blocked fan motor, and F14 and F15 involve the dryer heating element and its relay.

Dryer runs but no heat. Work through it in this order:

• Is it no heat, or poor drying? Splendide’s lists for poor drying start with an overloaded drum, a timed dry set too short, and a kinked or crushed exhaust hose on vented models. On a ventless model a closed water supply also kills drying, because it needs cold water to condense the steam, and a clogged condensing chamber or fan blower slows it down over time.
• Power. These are 120-volt machines: Splendide rates the 2100XC and 7100XC at 10.5 amps and 1,300 watts and the WDV2200XCD at 12.5 amps, and calls for a separate 15-amp circuit with no extension cord or adapter. Its chart also names low voltage as a reason cycles run long. On a 30-amp site the combo shares the rig’s service with the rooftop AC and everything else, so we measure voltage at the outlet with the combo heating and the AC running, on shore power and on the generator if you dry on it.
• The heater circuit. On the 2100XC and 7100XC the dryer heating element sits in the heater duct on the top right of the drum, and the module board feeds it power during the dry cycle. Splendide’s heat test is a hand at the door opening: airflow like a hair dryer on low, warming within 20 seconds. The element itself reads 11 ohms at the board’s J2 connector, and a fan motor that will not turn means no airflow. Splendide’s service guide for older models such as the WDC1024M shows a fuse link and two thermostats (marked 110 and 88 degrees F) on that duct, all of which get checked for continuity.
• The board. On the models in Splendide’s training guide, one module board runs the wash side and powers the dryer element, so a washer that has quit plus a dryer with no heat sends us to the board and its harness connections first. We test its outputs before anyone orders a board, since a loose connector or a failed element costs far less.

What we check on a visit: the model and any fault code, outlet voltage under load, water supply and hoses, the pump filter, the exhaust hose and outside vent on vented units, the heater, fan and sensor readings, and the board connections. If your combo is still under Splendide’s warranty (one year, extendable up to five), call Splendide first, because we are an independent shop, not a Splendide service center. After that it is the same appliance conversation as everything else on this page, quoted after the diagnosis.

Converters, batteries, and lightning

Everything in your rig ultimately leans on the 12V system, and in Highlands County two things attack it: lightning and storage.

Lightning. Florida recorded 305 lightning events per square mile in 2025, more than any other state. A strike near a resort’s electrical service sends a spike down every pedestal on the loop, and the converter, which sits between shore power and the battery bank, is the first thing it kills. The symptoms are dim lights on shore power, a battery bank that will not charge, and often a fridge or AC board that died the same afternoon. Mention a recent storm when you call so a converter can come on the first trip, and have the AC and fridge boards tested on the same visit so you get one number, not three surprises. An EMS-style surge protector between the pedestal and the rig is the cheapest insurance in this state.

Storage. A battery bank left flat in a storage lot from May to November sulfates, and a bank that spent six months on a converter with a failed charging stage is cooked the other way. Lead-acid batteries here rarely make the life on the sticker.

The trap most owners fall into: replacing dead batteries without testing the converter that charges them. A converter that over- or under-charges quietly ruins each new battery set, and the pattern is “my batteries only last a year,” repeated at $300 a round. The pair needs testing as a system: batteries under load, converter output at the terminals, plus the fuses, grounds, and connections in between. Converter replacement, battery swaps, corroded-connection repairs, fuse-panel faults, and lighting circuits are all standard work with parts our techs usually carry, typically $150 to $900 with converter replacement at the top. If your slide-out has been acting weak, this is often the actual culprit; a heavy motor on a sagging battery fails in confusing ways. The batteries dead or not charging page has the voltage checks to run before you call.

The repair-vs-replace promise

Every appliance call ends with the same conversation: here is what failed, here is the repair number, here is the replacement number, here is what makes sense in your seat. An older unit with a cheap fault is usually worth fixing. A unit at end of life with an expensive fault usually is not. What you will never get is a replacement quote before a diagnosis. The trip fee buys real testing, whether the rig is on a resort site in Avon Park, a fish camp in Lorida, or a driveway in Sebring.

Trip fee $75 to $150, labor $125 to $190/hr, one-hour minimum. The whole schedule is on the pricing page. Send the appliance, the symptom, whether a storm came through, the rig’s year, make, and model, and where it is parked; that detail lets us bring the likely parts on the first trip. Common questions live in the FAQ.