WHAT WE SERVICE

Complete RV Climate Control Service in Palm City

Palm City sits right in the heart of Martin County, where summer highs regularly crack 92 degrees and humidity hangs above 80% for months. Your RV's HVAC system takes a beating here that units up north simply don't experience. These rooftop air conditioners weren't designed for five straight months of near-constant operation, but that's what Florida demands. We've been working on RV climate systems for over 14 years, and we've seen how quickly Martin County's conditions can wear down compressors, corrode coils, and drain capacitors. Whether you're dealing with an AC that's blowing warm, a furnace that won't ignite, or a thermostat that's gone haywire, we handle it all at your location.

TL;DR

We repair and replace rooftop AC units, furnaces, thermostats, ductwork, and heat pumps for every RV type. Mobile service throughout Palm City and Martin County. AC recharge starts at $135, thermostat swaps at $95, full unit replacement from $900. Call 772-271-5270 to book.

Rooftop AC Repair

Your rooftop unit is the workhorse of your RV's comfort system. We service Dometic, Coleman-Mach, Advent, and Furrion units. Compressor diagnostics, fan motor swaps, capacitor replacements, and control board repairs. We also do deep coil cleaning, which is critical in Martin County where pollen and dust pack condenser fins fast. Rooftop AC repair details

Thermostat Repair

A bad thermostat can make your AC short-cycle every few minutes, run nonstop without reaching temperature, or refuse to start altogether. We install and repair analog, digital, and programmable thermostats from all the major brands. Upgrading from an old analog dial to a digital unit with scheduling runs $95-185 and gives you way better control. Thermostat repair details

Furnace Service

Florida winters are mild, but those January mornings in the 30s will make you appreciate a working furnace. We service Suburban, Atwood, and Dometic propane furnaces. Burner cleaning, igniter testing, sail switch replacement, and exhaust tube clearing are all part of our routine. Mud daubers love colonizing RV exhaust tubes down here. Service ranges $165-375. Furnace service details

Refrigerant Recharge

If your AC runs all day but the air never gets cold, low refrigerant is near the top of the suspect list. We always check for leaks before adding refrigerant, because topping off a leaking system just means you'll be calling us again next month. Once the system checks out, we recharge to factory specs and verify the temperature split. Runs $135-245. Refrigerant service details

Ductwork Repair

Collapsed, disconnected, or leaking ductwork bleeds cold air into spaces it shouldn't go. We've found RVs losing a third of their cooling capacity through duct problems hiding under the floor. Sealed joints, replaced crushed sections, and properly connected runs can make your existing AC feel twice as powerful. This one fix alone is often the answer. Ductwork repair details

Heat Pump Service

Heat pumps handle both cooling and heating from a single rooftop unit, which makes them perfect for Palm City's climate. They're efficient down to about 40 degrees, and our winters rarely dip lower than that. We repair reversing valves, defrost control boards, and handle refrigerant work on all major models. Having trouble switching from cool to heat mode? That's usually the reversing valve solenoid. Heat pump service details

RV AC unit installation and repair service in Palm City FL
Rooftop AC unit service and installation at your Palm City location
MARTIN COUNTY CHALLENGES

What Martin County's Climate Does to RV HVAC Systems

Relentless Summer Heat Load

From late April through mid-October, your RV's AC is pulling 14-16 hour shifts every single day. Compare that to an RV parked in the Smoky Mountains, where the AC might run 4-5 hours. That's three times the wear on compressors, bearings, and capacitors. We see compressor failures spike every August and September in Palm City, right when units have been running hardest for the longest. Scheduling a preventive check in late March before the real heat starts can catch failing parts before they leave you sweating.

Coastal Humidity and Mold Buildup

Martin County's proximity to the Indian River Lagoon and Atlantic coast means humidity levels that promote mold growth inside your evaporator housing. That musty smell when the AC kicks on? That's mold colonies growing in the dark, damp evaporator box. Beyond being unpleasant, it affects your breathing. We clean evaporator coils, treat drain pans with mold inhibitor, and clear the condensation drain line. A clogged drain can also send water into your ceiling, which crosses over into roof repair territory fast.

Pollen and Debris Clogging

Florida's long growing season means pollen is in the air nearly year-round. Oak pollen in spring is especially heavy in Martin County. That fine yellow dust packs into condenser fins and restricts the airflow your AC needs to reject heat. When the condenser can't breathe, the compressor works harder, runs hotter, and fails sooner. A professional coil cleaning twice a year is the cheapest maintenance you can do to extend your AC's life. It's like changing the oil in your truck.

30-Amp Power Limitations

Plenty of RV parks around Palm City and Stuart still only offer 30-amp hookups. Running a single 15,000 BTU rooftop AC on 30 amps works fine. Trying to run two at once? Your breaker trips instantly. That's where soft-start kits come in. Products like the Micro-Air EasyStart cut the compressor's startup surge by around 65%, which can let you run two units on 30-amp service that wouldn't support them before. We install these daily, and the job takes under an hour. Costs $225-375.

Troubleshooting an RV AC unit in Martin County
Diagnosing AC performance issues at a Martin County campsite
OUR PROCESS

How We Handle RV AC & HVAC Repairs

1

Describe the Problem

Call 772-271-5270 and walk us through the symptoms. Is the AC blowing warm? Making a grinding noise? Tripping the breaker? The more detail you give us, the more prepared we'll be when we pull up. Most appointments are scheduled within 24 hours, sometimes same-day if we're already in the area.

2

Complete HVAC Diagnostic

We test everything systematically: refrigerant pressure, compressor amp draw, fan motor RPM, thermostat signal accuracy, electrical supply voltage, and airflow through every duct run. No guessing, no parts swapping until we've identified the actual problem. You get a clear explanation and a firm price before we pick up a wrench.

3

Repair and Verify Performance

We complete the repair right at your location, then run the entire system under full load for 20-30 minutes. We measure the temperature split between supply and return air, verify the compressor cycles correctly, and confirm the thermostat reads within spec. You pay after we've proven it works.

PRICING

RV AC & HVAC Repair Costs in Palm City

These are typical price ranges for HVAC work in the Palm City area. We always give you the exact number before starting.

AC Recharge

$135 - $245

Leak check, refrigerant recharge to factory spec, and system performance verification under load.

Thermostat Replacement

$95 - $185

Digital upgrade, smart thermostat install, or direct replacement of a malfunctioning unit.

AC Unit Replacement

$900 - $2,400

Full rooftop unit swap. Old unit removal, new mounting, roof seal, wiring, and thermostat programming.

Furnace Service

$165 - $375

Burner cleaning, igniter testing, exhaust clearing, sail switch check, and full operational test.

Dirty RV AC coil needing HVAC service in Palm City
A clogged condenser coil, one of the most common causes of poor AC performance in Florida
BRANDS WE SERVICE

HVAC Brands We Work On

We're equipped for every major RV HVAC manufacturer. If it's in an RV, we've probably worked on it:

Dometic Coleman-Mach Advent Air Furrion Suburban Atwood GE Appliances Houghton Carrier
SERVICE AREAS

RV AC Repair Across Martin County

Palm City Stuart Jensen Beach Hobe Sound Port Salerno Indiantown Sewalls Point Rio Hutchinson Island Jupiter Island
FAQ

RV AC & HVAC Questions

What does RV AC repair cost in Palm City?

A refrigerant recharge runs $135-245 including a leak check. Thermostat replacement is $95-185. Full rooftop AC unit replacement costs $900-2,400, and furnace service is $165-375. We always quote the exact price before touching anything.

My RV AC is blowing warm air. What should I check first?

Start with the return air filter. A clogged filter restricts airflow and can freeze the evaporator coil. If the filter looks clean, you're probably dealing with low refrigerant from a slow leak or a failing compressor. In Martin County's heat, condenser coils also get packed with pollen and debris fast. We run through the full system to find the root cause.

Can you swap a rooftop AC unit at my campsite?

Absolutely. We carry Dometic and Coleman-Mach replacement units on the truck. A full rooftop swap takes about 3-4 hours. We handle the old unit removal, new unit mounting, roof seal, wiring, and thermostat programming. You don't need to move your RV anywhere.

How often should RV AC maintenance happen in Florida?

Twice a year is the minimum if you're using your RV regularly in Martin County. Schedule a spring tune-up in March or April before the brutal summer heat, then a fall check in October after the system has been working hard for five months straight. Florida's humidity, pollen, and heat put more stress on these units than most other climates.

Why won't my RV furnace light?

The sail switch and ignition board are the two most common failure points. The sail switch detects airflow, and if it's stuck or weak, the board won't even try to fire the burner. LP gas pressure at the regulator is next on the checklist. Here in Florida, mud dauber wasps love building nests in the exhaust tube while the furnace sits unused all summer. That blockage alone can prevent ignition.

What's a soft-start kit and is it worth the money?

A soft-start kit like the Micro-Air EasyStart reduces your AC compressor's startup power draw by about 65%. That matters if you're on 30-amp shore power at a park and keep tripping breakers, or if you want to run AC off a portable generator. We install them directly on the rooftop unit. The whole job takes under an hour and runs $225-375.

Do you work on RV heat pumps?

Yes, we service all major heat pump models. Heat pumps are great for Palm City's mild winters since they handle both cooling and heating from one unit. They lose effectiveness below about 40 degrees, so they won't fully replace a propane furnace on the coldest January mornings. We repair reversing valves, defrost boards, and handle refrigerant work on Dometic and Coleman-Mach heat pump models.

Why does ice form on my RV AC unit?

Ice buildup on an RV AC almost always points to restricted airflow or low refrigerant. Check the return air filter first because that's the most common culprit. If the filter is clean and you're still getting ice, there's likely a refrigerant leak that needs professional attention. A failing blower motor that isn't pushing enough air across the evaporator can cause it too. Turn the system off and let everything thaw before running it again.

Is there a service call fee?

Yes, we charge a diagnostic fee that covers the trip and full system evaluation. That fee gets applied toward the repair if you go ahead with the work. We don't do free service calls because a proper HVAC diagnostic takes real time and equipment. You'll know exactly what's wrong and what it costs before we start any repair.

Last updated: March 2026