QUOTE (ElCaminoManT @ Jul 9 2010, 08:43 PM)

check the trough around the condensor/evaporator assembly for build up blocking the drain holes.
a little tip for all you who read this thread, it was suggested to me by a rv tech to checke and snug up the 4 mounting bolts that hold the ac unit to the roof itself. youll be suprised to likely find them loose since everything settles over time. if they are too loose, the ac wont sit on the roof properly and can let rain water into the roof structure or inside the coach itself. dont get carried away tightening the bolts, just snug them up. both the units on my trailer were loose.....
your exactly right, mine has only been installed on my enclosed trailer for about 2 months, and every time I check them they are loose. I'm sure the weatherstrip is probably settling in or something, but good advice