4 Troubleshooting Tips for RV Air Conditioners

Hands on the front of an AC unit
  • 1-3 hours
  • Intermediate
  • 0-300

Proper maintenance and care of your RV is a sure fire way to keep it in tip-top shape so you can enjoy it for many years to come.

One of the most significant parts of an RV, especially in hot weather, is the air conditioning unit. Sometimes the RV air conditioner unit can have problems.

This can result in everything from an improperly functioning motor to lukewarm air. There are several things you can do to troubleshoot the RV air conditioner.

Each component is separate and can be looked at independent of one another.

1. Check the Thermostat

wall mounted air conditioning unit

The first place to look when you notice your RV air conditioner is not working properly is the thermostat. Make sure you have it set to the right temperature.

Next, take a look to see if your air conditioner thermostat is powered correctly. If operated by a battery, check to see the battery is still functioning properly.

If operated by a hard wire, check the fuse or the circuit box. If the circuit breaker has been tripped, reset it. If the fuse has been blown, then change the fuse.

2. Check the Power Cord

Most RV Air conditioners are powered using an extension cord, running from the air conditioner to the outlet. Make sure the power cord is plugged in.

Check the power source to be certain it is functioning properly. If you think there is a problem with the power cord, replace it.

3. Change the Filter

dirty AC filter

Too often, we notice the air flow coming out from the RV air conditioner is either weak or is not cold enough. This can be because we have not changed the filter on the air conditioning unit when it is due.

Check the filter, and if it looks like it is filled with a lot of dirt and grime, change the filter immediately. You should notice a much cooler air flow.

4. Check the Fluids

Take a walk around the condensing unit of your RV air conditioner. Do you see any signs of leaking? If you do see liquids coming out of the condensing unit you likely have a leak with your freon.

If this is the case, you will need to stop the leak and replace the air conditioner fluids appropriately to return the unit to a cold air flow.