One time I wrote and ask about a leak in the ceiling of our 1972 Argosy. It was near the side beds along the seam. I could see the water in the seam. Someone said it could possibly be coming from the A.C. or a crack in the roof. My husband checked the roof but didn't see anything significant, although he put sealant on a small spot. Seemed fine. Now, our ceiling leaked after a hard rain in a different spot. It was along a seam, but this time near the couch. It doesn't happen every time it rains. It rained this weekend and no leaks. This weekend we also noticed our A.C. doesn't seem to be getting cold. It's an Armstrong with the #917-01 on it. Any suggestions? My husband was going to try and replace the gasket. Can you find them? Do you still think the leaks are from the A.C.Thanks