RV air conditioners are designed to provide cooling and comfort while on the road or at campsites. (Not that you really need that reminder if you’re on the road in the U.S. this summer.) However, like so many things, we often don’t really notice the A/C so long as it is working. But when it starts failing to do its job — keeping you cool — it doesn’t take long for you (or your passengers) to start wondering: Is replacing the RV air conditioner the answer?
I get it. When the air goes down, a quick and easy solution can seem attractive. (Really attractive!) But in reality, you’ll do everyone a service (including possible your wallet) if you slow down.
RV air conditioners come in different types and sizes to suit different types and sizes of RVs for different RVers with different cooling needs. So, before replacing your RV air conditioner, there a few, key things you should do to make sure it’s truly necessary — and that, if needed, you choose the right replacement.
First let’s discuss the types of RV air conditioners. Consider it a primer not only to identify what you have — but also what you might get.
Step 1: Identify your RV air conditioner.
Rooftop Units
Rooftop RV air conditioners are a popular and effective choice for lots of campers — especially those who travel frequently in warm weather. These units are mounted on the roof of the RV, which helps conserve interior space and provide powerful, consistent cooling. They operate by drawing in warm air, cooling it using a refrigerant system, and distributing the chilled air back into the RV. The hot air generated by the cooling process is expelled outside through the rooftop unit.
Under-Bench/Closet Units
These types of air conditioner are installed under a bench other seating areas or closets within the RV. The benefit of these unit is that they save space. By locating the unit under a bench or a closet, you can free up valuable roof space. The rooftop space could then be used for other things like solar panels or simply reducing the overall height of your RV. (Scraping off your air conditioner at a low vertical clearance is an all-too common hazard.) Additionally, with the main unit tucked away, under-bench or closet air conditioners often run more quietly than rooftop units. This leads to a more peaceful environment inside your RV.
Another bonus is that the concealed nature of under-bench or closet units often result in a cleaner, less visually intrusive exterior compared to traditional rooftop units. Many under-bench/closet models are heat pumps. These offer both cooling and heating capabilities. It also makes them suitable for use in a variety of climates.
Mini-Split Units
Mini-splits are significantly more energy-efficient than traditional RV AC systems. As result, they regularly boast SEER ratings between 20 and 35. (As compared to 8-9 for rooftop units.) This makes them ideal for off-grid camping or boondocking where power is limited.
Unlike noisy rooftop units, mini-splits are designed to operate quietly. (Again, this helps ensure a peaceful environment inside your RV.) With a separate outdoor compressor and indoor air handler, mini-splits offer more flexibility in placement than rooftop units. This allows for optimized positioning to suit your RV’s layout. Mini-splits eliminate the need for bulky ductwork, saving valuable interior space in your RV.
Portable Units
These units are self-contained and can be moved around as needed. This makes them a flexible option for smaller RVs or temporary cooling. They don’t require permanent installation and can be set up in any room with a window. Portable A/Cs can effectively cool down a specific area where you are located, rather than the entire RV. Understandably, this leads to potentially lower energy consumption. Portable units can supplement your existing RV AC during extreme heat. (Or even act as a backup in case the main unit fails.) Many models can run on portable power stations or solar generators, providing cooling even when you don’t have access to shore power.
Step 2: Consider the age and condition of your A/C.
If your A/C is old and showing significant signs of wear, there will be signs. One good examples: reduced cooling capacity even after cleaning and maintenance. If that sounds like your unit, it might be time to consider replacing your RV air conditioner. So, let’s discuss the cost-effectiveness of repair versus replacement.
When an RV air conditioner malfunctions, the decision to repair or replace it depends on several factors, including the age of the unit, the cost of repairs, and the frequency of past issues.
Generally, if the A/C is relatively new and the repair cost is low, repair is a good option. However, if the unit is older, experiencing frequent breakdowns, or the repair cost is high, replacement might be more cost-effective in the long run.
Step 3: Assess the signs of A/C problems.
First, does your current air conditioner have reduced cooling capacity If your RV isn’t cooling effectively, especially in warm temperatures, it could be a sign of the A/C unit nearing the end of its lifespan. Also, any of the following may be an indicator that you are AC unit needs to be replaced.
- Weak or limited airflow can indicate problems with the blower motor, duct blockage, or a failing fan.
- Loud or unusual sounds, such as grinding or rattling, can signal issues like loose parts or worn-out bearings.
- Musty or burning smells can suggest underlying issues like mold, mildew, or electrical problems.
- Leaks in or around the A/C unit can be a strong indicator of trouble, including potential refrigerant leaks. If the unit cycles on and off repeatedly without effectively cooling, it could be caused by thermostat problems, electrical issues, or a malfunctioning compressor.
- Higher than usual energy consumption could indicate an inefficient or malfunctioning A/C unit.
Step 4: Perform basic troubleshooting and maintenance.
Ensure the unit is properly plugged in and check for tripped breakers or blown fuses. Clogged filters can significantly reduce airflow and cooling efficiency. Ice buildup can restrict airflow, so try turning off the unit to allow the coils to thaw. Look for leaks or gaps in the duct collar that might be allowing cold air to escape and loose mounting bolts can cause leaks allowing cold air to escape through the roof of your RV.
Step 5: Consider professional help.
Complex issues like refrigerant leaks, compressor problems, or motor replacement are best handled by certified RV HVAC technicians. We recommend professional services for maintaining the complex pieces of your RV’s AC system such as compressors, refrigerator coolant and condensers it to name just a few components.
Also, many technicians can come to your location, saving you the hassle of driving to a repair shop. Even though we do recommend seeking out professional services for the more complex problems mentioned above, deinstallation and reinstallation of an A/C unit on top of your RV is definitely doable by anyone. Replacement of a mini-split is a little bit more involved, but under bench and closet units are also easily replaced by the owner.
Step 6: Think about the replacement unit.
Not every air conditioner fits every RV. Consult a dealer or service center for advice on selection. Consider factors like Btu cooling capacity, whether a heat pump is desired, and if remote control functionality is needed. Installation can be complex and may require specialized skills, especially for features like cutting roof openings and wiring connections, but we feel that many of you out there have the skills necessary to replace your air conditioner.
By carefully assessing your current unit’s condition, performing basic maintenance and troubleshooting, and seeking professional help when needed, you can make an informed decision about whether to replace or even upgrade your RV air conditioner.
Step 7: Research popular brands for replacing an RV air conditioner.
There are many units out there for your RV and you must do your research to determine what type of air conditioner you want if you just want to go backstock with the same type of air conditioner you already have or doing an upgrade to a mini split. If your replacing an RV air conditioner, here are a few manufacturers that are leaders in the industry.
- Dometic. Known for energy efficiency and noise reduction, with features like remote control and programmable timers.
- Furrion. Offers powerful and efficient cooling, with features like dual fans and vibration smart technology.
- Coleman-Mach. Offers a range of durable models, including low-profile units for improved fuel efficiency.
- Pioneer. Known for under-bench units with heat pump functionality for year-round comfort.
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