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RV Heat Pump Service in Palm City

Stuck reversing valve, frozen outdoor coil, heat mode blowing cold. We service and repair dual-mode RV heat pump units on-site across Martin County. Defrost board repairs from $125, full service from $145.

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What Is RV Heat Pump Service?

An RV heat pump is a rooftop AC unit that can both cool and heat your rig. It works by reversing the refrigerant cycle. In summer, it pulls heat out of the RV and dumps it outside through the rooftop coils, just like any AC. In winter, it flips the process, extracting heat from the outdoor air and pumping it inside. It's an all-electric solution that keeps your propane tank full while heating your living space.

RV heat pump service covers the components that make this dual-mode operation possible. The reversing valve that switches between heating and cooling. The defrost board that prevents ice buildup on the outdoor coil during heat mode. The capacitors and contactors that handle the electrical load in both directions. And the overall system tune-up that keeps the unit running efficiently through Florida's mild but occasionally chilly winters.

Heat pumps are especially practical in Palm City's climate. Winter temperatures here rarely drop below the mid-40s, which is well within the effective range for heat pump operation. That means you can heat your RV all season without touching the propane furnace, saving both fuel cost and the wear that comes with combustion-based heating. We service all major heat pump brands including Dometic, Coleman-Mach, and Furrion.

TL;DR

RV heat pump service maintains the dual-mode AC/heating unit on your roof. Common jobs include reversing valve replacement ($175-375), defrost board repair ($125-275), and full system service ($145-295). Heat pumps are ideal for Florida's mild winters since they provide propane-free electric heat. Mobile service across Martin County.

RV heat pump and rooftop AC unit needing professional service in Palm City FL

What's Involved in Heat Pump Service

1

Mode Testing

We run the system in both cooling and heating modes, measuring supply air temperatures, checking compressor amp draw, and verifying that the reversing valve actually switches direction when the thermostat changes modes.

2

Component Inspection

We test the reversing valve solenoid, check the defrost board sensor and timer, inspect capacitors, and verify the thermostat is sending the correct signals for both heat pump and emergency heat modes.

3

Repair or Replace

Failed components get swapped. Reversing valve replacements require refrigerant recovery and recharge. Defrost boards and capacitors are typically same-day fixes with parts we carry on the truck.

4

Efficiency Verification

We clean both coils, check refrigerant charge, measure the temperature split in both modes, and verify the defrost cycle triggers properly. You get a system that performs at peak efficiency in Florida's climate.

Heat Pump Service Pricing

ServicePrice Range
Reversing Valve Replacement$175 - $375
Defrost Board Replacement$125 - $275
Full Heat Pump Service$145 - $295

Final pricing depends on your unit brand, model, and what's needed. You'll get a firm quote before we start.

Signs Your RV Heat Pump Needs Service

Heat pump problems often show up as mode-specific failures. Your AC might work fine but heating doesn't, or vice versa. Watch for these symptoms:

RV AC capacitor replacement and heat pump component service in Palm City

Heat Pump Service FAQs

How much does RV heat pump service cost in Palm City?

A reversing valve replacement runs $175-375 depending on the unit brand and accessibility. Defrost board replacement costs $125-275. A full heat pump service that includes diagnostics, cleaning, and performance testing runs $145-295. We'll diagnose your specific situation and give you a firm number before starting any work.

What's the difference between an RV heat pump and a regular RV AC?

A standard RV AC only cools. A heat pump is basically the same system with one extra component: a reversing valve that flips the refrigerant flow direction. In cooling mode it works exactly like a regular AC. In heat mode, it reverses the cycle so the outdoor coil absorbs heat from the air and the indoor coil releases it into your RV. It's electric heating without propane, which is a big advantage in Florida's mild winters.

At what temperature does an RV heat pump stop working effectively?

Most RV heat pumps lose significant efficiency below about 40 degrees Fahrenheit. Below that point, there's not enough heat energy in the outside air for the system to extract. In Palm City and Martin County, winter lows rarely dip below the mid-40s, which makes heat pump heating practical for most of the season. On the coldest nights, you might need to supplement with your propane furnace.

Why does my RV heat pump blow cold air in heat mode?

The most likely cause is a stuck or failed reversing valve. This valve is what switches the system from cooling to heating mode. When it gets stuck in the cooling position, the thermostat tells the unit to heat but the refrigerant keeps flowing in the cooling direction. Other causes include a bad defrost board, low refrigerant charge, or a faulty thermostat that isn't sending the right signal.

Does my RV heat pump use propane?

No. An RV heat pump runs entirely on electricity. It uses the same compressor and refrigerant cycle as your AC but in reverse. That's one of its biggest advantages for Florida RVers. You can heat your rig on shore power or generator without burning propane. This saves on propane costs and eliminates the combustion byproducts that come with running the furnace.

What does the defrost board do on an RV heat pump?

When the heat pump runs in heat mode, the outdoor coil gets cold and can frost over in humid conditions. The defrost board monitors the coil temperature and periodically switches the system back to cooling mode for a few minutes to melt the frost off the outdoor coil. If the defrost board fails, ice builds up on the coil, blocks airflow, and the unit stops heating effectively.

Can I convert my regular RV AC to a heat pump?

Not by adding components to your existing unit. You'd need to replace the entire rooftop AC with a heat pump model. The good news is that heat pump units are the same physical size and mount the same way, so it's a direct swap. Dometic and Coleman-Mach both make heat pump versions of their popular rooftop units. The price premium over a standard AC is usually $200-400.

Heat Pump Not Switching Modes? Let's Fix It

A working heat pump saves you propane all winter long. We'll come to your location, test both modes, and give you a firm price before any work starts.

Call 772-271-5270