A couple of days ago, it was scorching, and we were running the ceiling air conditioner in our 1984 Fiber Stream. I was planning on hanging out in the camper this evening. Later in the afternoon, I went into the trailer and noticed the AC unit was dripping a considerable about of water.
After some quick research and talking to the previous owner, it was clear I probably needed to replace the AC gasket. I did remove the external cover and confirm that none of the drain holes were plugged. I removed several old wasp’s nests from the top unit.
After some quick research, I found several types of gaskets and based on this video, I decided to go with Steele Rubber single piece gasket.
Last night we got a lot of rain. Over the weekend I removed the carpet and padding, it was clear the AC unit has been leaking for a while. This morning the floor was very wet.
Replacing rv air conditioner gasket:
I opted not to follow this video!
Some photos of my current situation:
Steps to replace gasket.
- Disconnect power, including breaker.
- Remove inside cover.
- Take note of the tightness of the 4 bolts that hold the unit in place. They look awfully tight, but I want to be aware of how tight they are now.
- Loosen 4 bolts.
- Mark and disconnect the wires.
- Push the AC unit up and slide to the side, so I can go up on the ladder and bring the unit down to the ground.
- Inspect the roof for holes or cracks – part of a bigger project to fix and repair small holes in the roof.
- Mark and remove the old gasket. Clean the surface.
- Install a new gasket.
- Reinstall AC Unit.
Floor after heavy rain. 
I somehow managed to get the unit off the roof and this was the old gasket. 
Roof with no AC Unit. 
New Gasket and support installed. Looking good. 
I somehow managed to reconnect the unit.
Weeks later, after a bunch of rain, I am happy to report no more leaking from the AC unit! If I had to do this again, I would get another person to help. The unit is heavy and awkward to safely move off the roof solo.