What was myth number 1 you ask?

Myth number one, a lot of people think that if there RV AC isn't cooling properly, then it must be low on refrigerant. And I'm here to tell you

 it probably isn't. RV AC systems are hermetically sealed, meaning there are no ports to put more refrigerant in or for refrigerant to get out. And this means that Refrigerant leaks account for less than 1% of RV AC problems.

If you really think that you have a leak, look for signs of a leak. You're going to see an oily residue somewhere either inside of your rig, along the ceiling, near the ac, or on your roof again around the AC.

 Note, I'm not talking about water or condensation that you're gonna see no matter what I'm talking about, an oily black substance.

If you don't see that anywhere, then you're not low on refrigerant, which is a good sign. It means you probably have an electrical or an airflow problem, which are much simpler problems to solve.

Want to learn more RV maintenance tips? Check the link in my bio for my FREE Ultimate RV Maintenance Guide. The #1 way to save money on pesky RV Repairs is giving your rig a little bit of love.