6 Rv Air Conditioner Repair Tips & Guides [2022 Updated]

5/5 - (7 votes)

For all those seeking how to perform RV air conditioner troubleshooting and seeking solutions for such situations. Dive in to look at how you can perform RV air conditioner repair. 

To help you get sorted, we have listed down the RV AC maintenance tips plus troubleshooting solutions for the six most common conditions. You can fix the camper air conditioner repair by following simple and easy maintenance tips mentioned in this article.

Regular RV AC Maintenance Tips:

  • Inspect The Cover:

Get yourself a ladder and inspect your RV’s air conditioner closely, being careful when you approach the roof. Check whether the plastic cover on the air conditioner is really in good shape and free of leaks or splits.

This cover not only gives the appliance a sleek and semi-attractive look, but it also serves a vital function. It prevents moisture plus snow from entering inside the air conditioner’s workings, which would drastically reduce its lifespan.

  • External Factors Like Wind, Sunlight, Debris Cause Damage:

The exterior plastic cover may destroy over time due to the sun’s destructive chemical reactions or physical stress from low-hanging trees.

The influence of ultraviolet sun rays weakens its plastic shroud over time, which may entirely fall into several fragments.

You can get new shrouds on the RV air conditioner online or get a high-quality alternative.

  • Keep An Eye Out For Leaks & Water Intrusion:

Check your air conditioner seems securely mounted while you’re up there. Among both AC plus roofs comes a foam rubber gasket. Rainwater may make its way inside your RV if somehow the mounting becomes loose, which can have devastating effects.

When water comes inside your camper, this follows the roof rafters plus wall framing coming out of a location. 

Usually, you’ll believe the leak started somewhere else without inspecting the gaskets surrounding the RV’s air conditioner. Get your RV AC repair by hiring a professional, or if you are a pro, you can do it yourself. 

  • Straight Fins Remain Essential:

When you take the shroud off your air conditioner, you’ll see a series of metallic fins upon this unit. Such fins are extremely sensitive over time.

Since the Ac system operates best with straight fins when free from debris, using a comb to straighten the bent fins and a vacuum for removing dirt is one of the smartest ideas. Another way is to use a spray bottle filled with mild soap and water to clean the fins. Perform this tip after every six months. 

  • The Fan Should Be Maintained And Serviced:

The next step is to oil the fan of your RV air conditioner. If it has been properly oiled, then it works smoothly. Because every air conditioner is different, you should consult the manufacturer’s instructions for completing the task correctly.

Purchase high-quality, detergent-free oil, like automotive motor oil, because low-cost oils may wear out quickly, leaving residues.

  • Examine The Condenser of Your AC:

The next step entails examining your air conditioner’s condenser. This is a vital step because the coils offer cooling throughout the hot days.

It’s crucial to inspect the condenser regularly to collect dirt, debris, and dust.

  • Roof Vents That Allow Air to Escape:

This step is crucial if you want to prevent excess moisture from the RV’s ac unit.

You’ll need to take out all air from your air conditioner’s roof vent for accomplishing this task. This prevents avoidable problems.

6 RV Air Conditioner Repair & Troubleshooting Guide:

Dive in to have a look at the RV air conditioner repair & troubleshooting guide:

The Air Conditioner Does Not Turn “On”:

When you normally want the RV air conditioner to function, but when the RV air conditioner doesn’t turn on, then it’s frustrating. 

  • The first step towards resolving the issue is to inspect the AC remote for its battery. Although AA and AAA batteries last longer, less expensive models may burn out faster.
  • Replacing the batteries should usually suffice, but if that doesn’t work, the next step includes inspecting the remote for any broken parts. If the remote appears in fine working order, you most likely haven’t turned on the electricity power.

The Air Conditioner Is Blowing Hot Air:

Whenever the air conditioner produces hot air, you should examine the thermostat. On the other hand, if you have set the temperature correctly and still the air conditioner continues to pump hot air,  there is a fault with the thermostat.

  • To fix this, unplug the cables connecting its thermostat and reconnect them, ignoring the thermostat. 
  • If the air conditioner starts working correctly, then the thermostat is at fault, and you’ll need a replacement for it.
  • Check the temperature outside. On exceptionally hot days, your RV’s air conditioner may struggle a bit.  Even the best air conditioner will struggle to keep your vehicle cool if it has been poorly insulated, seems to have a couple of windows positioned directly inside the sun. To keep your RV cool, park it inside a shade, close the doors or windows, and avoid using heat-producing internal appliances.
  • Make sure the air conditioning filters are clean. Check and clean the filters to keep the air conditioner blowing cool air.

The Unit of The Air Conditioning Engine Is Exceptionally Loud:

Because air conditioners are normally smooth and quiet, it’s simple to detect in the initial phase creating a loud noise. It is a fact that it mostly occurs because of the improper location of silicone shock absorbers.

Remove the AC unit’s shroud locate its silicone shock absorber, making sure it doesn’t brush against compressor coils or fan to fix the problem. Here’s a step-by-step instruction to make your RV air conditioner quiet.

Noise reduction kits are provided by manufacturers such as Dometic AC troubleshooting, and if you have one, utilize it. 

The noise reduction kits are quite useful, especially if it doesn’t occur because of the broken air conditioner. It’s fantastic when you finally get rid of that obnoxious and constant noise.

DometicRV air conditioner troubleshooting for noise reduction has become progressively better considering advancements in technology. Dometic air conditioner troubleshooting noise reduction kits are available, which lower noise and improve airflow.

  • Replace the air conditioner’s fan motor. Check for damage, and then replace it.  When we ask the experts to investigate the noise source, the answer is a fan motor problem. AC’s fan motor can replace for a lower cost and is also a simple procedure if you know electrical, mechanical, or electronic appliances. It occurs when an older or frequently used air conditioner becomes rough, causing vibrations. As a result, the RV air conditioners create noise as it runs.
  • Let your air conditioner loosen a bit. You can verify if the air conditioner is firmly mounted over the RV before calling a specialist to look at it. Vibrations are transmitted within the RV throughout frames and walls because of an RV air conditioner upon the camper roof. If the air conditioning system is on full blast, this causes loudness. Noise can greatly reduce by loosening the mounting somewhat.

Your Air Conditioner Has Ice On It:

Ice can form on the air conditioner’s outside, but it is not that common. Freon levels inside the air conditioner cause the issue; however, it is relatively simple. 

  • The very first step is to determine whether or not your air conditioner has leaks.

Assuming you can’t discover a leak, top off the Freon in your air conditioner. It should then work properly again, without producing unnecessary ice.

There’s A Foul Odor Coming From Your Air Conditioner:

Air conditioners rarely emit odors, although an unpleasant odor may emerge in rare cases. 

  • This happens if you don’t clean or replace filters regularly. 
  • Even after cleaning, if the scent persists, the issue is most likely with the radiator. What you can do is try cleaning the dirt.

The Air Conditioner Does Not Turn Off:

If you find that your air conditioner continues running even if you switch it off, then it’s high time that you address the issue immediately to avoid damage to your machine or a reduction in its lifespan. 

  • There are several reasons why your air conditioner won’t switch off. To begin with, it could be a broken thermostat needing a replacement. 
  • If this is not the problem, the circuit board may damage, necessitating the assistance of a technician.

Frequently Asked Questions:

  • What Is The Cost Of Replacing The Air Conditioner In An RV?

A replacement for an RV air conditioner costs anywhere from $500 to $1100, including installation costs of $400 to $700.

Please remember that the cost of running the latest air conditioner varies based on its size. Newer ones, on the other hand, are generally extremely energy efficient.

  • Is It Possible To Recharge Your RV Air Conditioners?

While a few RV air conditioning systems can recharge, most types cannot be done without the help of a specialist.

  • Why Is The RV’s Air Conditioner Leaking Water?

Inspect whether the drainage pan is clogged, do the cleaning if necessary. Ensure that the fastening bolts are not loose and that the gasket over your RV is properly attached.

  • When It Rains, Why Does My RV’s Air Conditioner Leak?

If the RV’s air conditioner leaks at times of rain, the problem is most likely by a faulty rubber gasket seal at which the unit contacts the RV’s roof.


The components of an RV air conditioner are essential, but they won’t last for a lifetime. Most problems with air conditioners can readily resolve without the need for expert assistance if you know ways to resolve them.

Make sure to perform regular maintenance and cleaning. The key thing to remember is to perform maintenance when your air conditioner is off. Apart from it, you can also check out the RV air conditioner repair service near me. RV air conditioner repair near me is a help for all those seeking professional help!

Read More Posts:

Leave a Comment