Refrigerant

Popester82 wrote:
What type of refrigerant does my AC unit use. Last two times we used it it would ice over and once it thawed it would be fine. A friend of mine says it's probably low on Freon and he was asking me what type to bring to the house so he doesn't have to make a second trip I'm not sure if it showed up in my profile but it's a 33 foot 1993 Dutchman classic. There is only one AC unit in the middle Thx.

If your friend had to ask the type of refrigerant they most likely should not be working on it..

I haven't look at one for a while but it most likely will be R22 but there may be a few odd ones that used R500 and a few other versions..

Additionally RV A/C units just like a home window A/C or Home refrigerator DOES NOT HAVE ANY SERVICE "PORTS".. RV A/Cs are not considered "serviceable"..

You friend WILL have to INSTALL service ports in order to be able to check the pressure or add any refrigerant.

If it truly is low on refrigerant, it HAS a leak and adding refrigerant is only a very short term fix. A leak on one of these is not going to be easy or cheap to fix so a new A/C unit would be the better way to go in case of a leak.

Freezing up is not always low refrigerant, high humidity AND running the unit on low fan speed CAN cause it to ice..

Clogged/dirty filter can also cause icing..