When your RV air conditioner stops working, one of the first questions that comes to mind is: How much is this going to cost me? Whether you’re full-timing or just gearing up for your next road trip, knowing what to expect when it comes to RV A/C repair costs can save you from budget surprises and help you make informed decisions. In this guide, we’ll break down common RV A/C issues, typical costs for repairs, and factors that influence pricing—plus when it might make more sense to replace the unit altogether.
Average RV A/C Repair Cost (Quick Answer)
Most RV A/C repairs cost between $150 and $1,200. Yes, we realize that is a pretty big range, but it depends on the issue.
Here’s a realistic breakdown:
| Repair Type | Typical Cost Range |
|---|---|
| Compressor repair or replacement | $800–$1,800 |
| Fan motor repair | $350–$800 |
| Capacitor or electrical repair | $100–$250 |
| Thermostat replacement | $175–$400 |
| Control board replacement | $450–$1000 |
| Refrigerant Recharge | $200–$600 |
| Full RV A/C unit replacement | $1,200–$3,500+ |
Common RV A/C Repairs and Their Costs
RV air conditioners are complex systems with multiple components that can wear out or fail. Here’s a look at the most common repair needs and what they typically cost:
1. Compressor Replacement
What it does
The compressor is the heart of your RV A/C system. It circulates refrigerant and enables heat transfer that actually cools the air.
Cost
- Part: $500–$1,100
- Labor: $300–$700
- Total estimated cost: $800–$1,800
Common symptoms of a failing compressor
- A/C runs but blows warm or slightly cool air
- Loud humming, buzzing, or grinding from the rooftop unit
- Circuit breaker trips when A/C starts
- Compressor tries to start, then shuts off
- Burning smell or overheating at startup
Expert note
Because compressor replacement often approaches the cost of a new unit, full A/C replacement is usually recommended if the system is 8–10+ years old.
🔗 Related Article: Replacing vs. Repairing Your RV A/C Unit: Which Makes Sense?
2. Fan Motor Repair or Replacement
What it does
The fan motor moves air across the evaporator and condenser coils, allowing cooled air to circulate inside the RV.
Cost
- Part: $150–$400
- Labor: $200–$400
- Total estimated cost: $350–$800
Common symptoms of fan motor problems
- Weak or no airflow from vents
- A/C cools intermittently
- Squealing, rattling, or grinding noises
- Unit overheats and shuts down
- Fan won’t spin, even though the A/C has power
Expert tip
Running the A/C with a failing fan motor can damage the compressor, turning a mid-range repair into a major one.
3. Capacitor Replacement
What it does
Capacitors provide the electrical boost needed to start and run the compressor and fan motor.
Cost
- Parts: $25–$100
- Labor: $75–$150
- Total estimated cost: $100–$250
Common symptoms of a bad capacitor
- A/C clicks or hums but won’t start
- Unit starts only after repeated attempts
- Fan spins slowly or not at all
- Compressor shuts off shortly after startup
Expert tip
Capacitors are inexpensive but critical. Replacing a failing capacitor early can prevent compressor failure.
4. Thermostat Replacement
What it does
The thermostat tells the A/C when to turn on and off and regulates temperature inside your RV.
Cost
- Basic thermostat: $75–$200
- Labor: $100–$200
- Total estimated cost: $175–$400
Common symptoms of thermostat failure
- A/C won’t turn on or won’t shut off
- Incorrect temperature readings
- System short-cycles (rapid on/off)
- Thermostat display is blank or unresponsive
- A/C works only when manually overridden
Optional upgrade
Upgrading to a digital or smart thermostat can improve comfort, reduce cycling wear, and help diagnose future issues faster.
5. Control Board Replacement
What it does
The control board is the “brain” of your RV A/C system. It manages electrical signals between the thermostat, compressor, fan motor, and safety sensors to ensure the system operates correctly and safely.
Cost
- Part: $250–$600
- Labor: $200–$400
- Total estimated cost: $450–$1,000
Why pricing varies
Control board costs depend heavily on A/C brand and model. Some newer units use proprietary boards that are more expensive and may require additional diagnostic time during mobile service calls.
Common symptoms of thermostat failure
- A/C won’t turn on despite proper power supply
- System turns on but shuts off randomly
- Fan runs but compressor never engages
- Thermostat appears functional but A/C doesn’t respond
- Error codes or blinking indicator lights (on compatible models)
- A/C behaves inconsistently after electrical surges or power issues
Expert note
Control board failures are often misdiagnosed as thermostat or compressor problems. Proper electrical testing is critical before replacement to avoid unnecessary repairs.
6. Refrigerant Recharge
What it does
Refrigerant absorbs heat from inside the RV and releases it outside, enabling cooling.
Cost
- Service range: $200–$500
- Total estimated cost: $200–$600
⚠️ Critical RV-specific note
Most RV rooftop A/C units are sealed systems and are not designed to be recharged. If refrigerant is low, it usually means:
- There is a refrigerant leak
- The system is failing internally
- Replacement is more cost-effective than repair
- Symptoms that may indicate refrigerant issues
- A/C blows warm or mildly cool air
- Evaporator coil freezes over
- Unit runs constantly without cooling
- Hissing sounds near the rooftop unit
Expert warning
If someone offers to “top off” refrigerant on a sealed RV A/C system, that’s a red flag. Temporary recharges often fail and can damage the compressor.
Labor Costs and Factors That Affect Pricing
Repair costs don’t just depend on the broken part. Here are a few other factors that can influence the final bill:
- Labor Rates: These vary by region but generally range from $150–$250 per hour.
- Mobile Repair Fees: If you’re using a mobile RV repair service (like JBRV Mobile RV Repair), expect a minimum service call fee of $200.
- Brand: Common brands like Dometic, Coleman-Mach, and Furrion have different part pricing.
- Parts Availability: If your unit is older or out of production, parts may be more expensive or take longer to arrive.
- Warranty Coverage: Check if your A/C unit is still under manufacturer warranty—this can significantly reduce your out-of-pocket expenses.
Should You Repair or Replace Your RV A/C?
If your air conditioner is more than 8–10 years old and the repair bill exceeds half the cost of a new unit, replacement may be more cost-effective. Most new RV A/C units cost between $1,200–$3,500, including installation. For a deeper dive into this topic, check out our article:
👉 Replacing vs. Repairing Your RV A/C Unit: Which Makes Sense?
How to Avoid Surprise Repair Costs
Here are a few smart ways to reduce the likelihood of a pricey A/C repair:
- Perform regular maintenance, such as cleaning the filter and coils.
- Monitor performance during use and take note of unusual noises or reduced airflow.
Before long trips, use our guide:
👉 How to Prepare Your RV A/C System for a Long Trip
Final Thoughts.
Understanding the potential cost of RV A/C repair helps you budget appropriately and make informed decisions about maintenance, repair, or replacement. While minor fixes like capacitors and thermostats are relatively affordable, major repairs like compressors may lead you to consider replacement instead.
If your RV’s A/C isn’t cooling like it used to—or has stopped working entirely—don’t wait. Contact the trusted professionals at JBRV Mobile RV Repair. We come to you, providing honest estimates, skilled repair, and fast service to get your A/C running again.
Schedule a service appointment online and let us help you stay cool and comfortable on the road.