A working air conditioner is essential for RV owners in Texas, where high temperatures can make travel uncomfortable. A faulty AC unit can lead to poor airflow, inefficient cooling, and even water damage inside the RV. Understanding when to repair or replace your RV AC system can save time and money.
We take a look at some common questions about RV air conditioner repair, maintenance, and costs.
How Do RV Air Conditioners Work?
RV air conditioners function differently from home AC systems. Unlike central air systems, RV AC units are self-contained, compact, and mounted on the roof. They rely on a sealed refrigeration system to cool the air inside the RV.
Most RV AC units operate as sealed systems, meaning they do not require refrigerant refills under normal conditions. The system uses refrigerant to transfer heat from inside the RV to the outside. If the system develops a leak, the unit may stop cooling effectively, requiring repair or replacement.
What Are Common RV Air Conditioner Problems?
AC Not Cooling Properly
If the AC is running but not cooling, the issue may be:
- Low refrigerant (rare, but possible due to a leak)
- Dirty air filters restricting airflow
- Blocked condenser coils reducing heat transfer
- Fan motor issues affecting air circulation
Leaking Water Inside the RV
Water dripping inside the RV is often caused by:
- A clogged or blocked drain pan preventing proper water drainage
- Improper installation leading to poor sealing
- Excessive humidity causing condensation buildup
AC Unit Turning On and Off Repeatedly
If the AC cycles on and off too frequently, possible causes include:
- Thermostat malfunction causing incorrect temperature readings
- Frozen evaporator coils due to restricted airflow
- Electrical issues disrupting power flow
Noisy AC Operation
A noisy AC unit may indicate:
- Loose internal components vibrating during operation
- Worn-out fan motor producing excessive noise
- Debris buildup interfering with normal function
Breaker Keeps Tripping
If the AC repeatedly trips the breaker, potential reasons are:
- Overloaded circuits due to excessive power draw
- Electrical faults within the AC unit
- Low voltage supply causing unstable operation
RV Air Conditioner Maintenance Tips
Cleaning and Replacing Air Filters
Air filters should be cleaned or replaced every few months to maintain proper airflow. A clogged filter can reduce cooling efficiency and strain the AC system.
Inspecting and Cleaning Condenser Coils and Fins
Dirt and debris on the condenser coils can restrict heat dissipation. Regular cleaning improves performance and extends the unit’s lifespan.
Checking for Proper Power Supply and Voltage
Ensure the RV is receiving the correct voltage to prevent electrical issues. Low voltage can cause the AC to work inefficiently or shut down.
Preventing Ice Buildup on Evaporator Coils
Frozen evaporator coils can reduce cooling capacity. Prevent ice buildup by keeping filters clean and ensuring proper airflow.
Can You Recharge an RV Air Conditioner with Freon?
Most RV air conditioners are sealed and do not require recharging. If refrigerant levels are low, there is likely a leak, which may require professional repair or unit replacement.
If the sealed system is compromised, replacing the unit is often more cost-effective than repairing it. Modern RV AC units are designed for efficiency and long-term reliability.
When Should You Replace Your RV Air Conditioner?
Most RV air conditioners last 8 to 15 years, depending on usage and maintenance.
Cost of Repairs vs. Replacement
- Minor repairs: $100 to $500
- Major repairs: $500 to $1,200
- Full replacement: $1,000 to $2,500, including installation
Some of the top RV AC brands include:
- Dometic
- Coleman-Mach
- Furrion
Can You Run Your RV AC All Day?
Running the AC all day is possible, but it depends on power availability. To improve efficiency:
- Park in shaded areas
- Use window covers to reduce heat gain
- Maintain proper insulation
Generator vs. Shore Power Considerations
If running on shore power, ensure the hookup provides sufficient wattage. If using a generator, monitor fuel levels and power output to prevent overload.
What Does RV Air Conditioner Repair Cost?
- Thermostat replacement: $100 – $300
- Fan motor replacement: $200 – $600
- Capacitor replacement: $100 – $250
- Compressor replacement: $500 – $1,200
Typically, a new RV air conditioner, including installation, costs between $1,000 and $2,500. Ultimately, it depends on the brand and BTU rating.
Finding a Reliable RV AC Repair Shop in Texas
What to Look for in a Repair Service
- Certified and experienced RV technicians
- Warranty on parts and labor
- Good customer reviews
Mobile repair services can fix AC issues on-site, saving time and effort. Many mobile technicians provide emergency repairs for RV owners on the road.
Can I Install a Thermostat for My AC?
Most RV air conditioners have a built-in thermostat or are connected to a wall-mounted thermostat inside the RV. Standard residential thermostats usually do not work with RV air conditioners because they operate on different voltage and control systems.
If you want to upgrade your RV thermostat, you need a model designed specifically for your AC unit. Some manufacturers offer upgrade kits, but these often require additional components to ensure proper communication with the AC system. Before purchasing a new thermostat, check your owner’s manual and wiring diagram to confirm compatibility. If in doubt, consult an RV technician for professional installation.
When Should I Consult an RV Tech?
These troubleshooting tips can help you handle some common RV air conditioner issues on your own. However, certain problems require an RV technician. Annual servicing is important to clean filters, inspect evaporator and condenser coils, and test critical components.
A technician should handle capacitor and compressor issues. A capacitor is replaceable, but a faulty compressor means it is time to replace the entire AC unit. Do not attempt to remove or repair the capacitor under the rooftop AC shroud. It carries an electrical charge and can be quite dangerous.
Is Your AC on the Fritz?
Regular maintenance keeps your RV AC running efficiently. If your unit shows signs of failure, diagnose the problem early to avoid costly repairs. Whether repairing or replacing your AC, choosing a reliable service provider ensures your RV stays comfortable during Texas summers.
Do you need RV air conditioner repair before Texas heats up? Schedule an AC inspection or repair at TX RV Repair Shop to keep your system running smoothly.