AC maintenance

azdryheat wrote:
Roofs are OK to walk on, just use caution. You can't add freon without compromising the unit by drilling into the freon line as the system is totally sealed and not meant to have freon added.

And I will just add if you are looking to buy a used RV.....open the ac and make sure the previous owner did NOT drill and add an adapter to add freon......because in some states no licensed ac repair company will work on your AC.

Don't ask me how I know this. :(

If I'm not mistaken, these are sealed units and you couldn't add Freon if you wanted to.

B.O.

I clean mine on a regular basis but my wife is ill and she can tell if it is dirty. Get up and pull the cover, sometimes they aren't dirty anyway. One year mine had a hornets nest in it so I put the cover back and waited for frost. That's the most excitement here in years.

The typical RV A/C unit is sealed and you cannot add refrigerant without adding a port to the system. Normally refrigerant is never added.

Clean the fins, filter, and drain holes. I clean the filter once or twice a year and the rest whenever I think of it. Probably two to three years.

MKirkland wrote:
Does the freon have to be refilled every year, if you can? Thanks

no

Roofs are OK to walk on, just use caution. You can't add freon without compromising the unit by drilling into the freon line as the system is totally sealed and not meant to have freon added.

Do you put a support on the roof like plywood etc? I am a bit nervious bout walking on my TT roof.

Just did it yesterday! Bought some coil cleaner and cleaned the external coils with a toothbrush, cleaned the fan motor shat and lubricated it, inspected the drain holes, and cleaned out leaves and old wasp nests. I think freon is only added when needed. You also should keep the inside filter clean. The hardest (and most time consuming) was unscrewing and reattaching the housing.