The air conditioner is a window model in a cabinet which is inside the front bedroom and hangs over the bed. It is located in the left side wall over the bedroom window. There is a grill over on the outside wall opening. The a/c is mounted entirely inside the bedroom.
I suspect when setting up if you are not level from side to side with the left side high the a/c is only going to drain to the inside. That is why your bed probably got wet. Any rain comming down hard against the left side or wind-blown against the left side of the trailer is going to leak in.
I would advise when setting up in the future that you set the left side low at least a half a bubble out of level.
Water that you were talking about leaking down the rear wall of the front storage probably also came from the air conditioner since the front storage is under the bed.
If you keep the trailer I would recommend adding a water tight hatch cover outside hinged at the top where the a/c grill is located. I would remove the grill and mount the a/c on a sliding tray so that it could be pushed outside and locked in place when in use. The outside hatch would act as a rain cover for the a/c.
I plan on mounting an a/c in the side wall of a utility trailer to camper conversion in the same manner as opposed to mounting an a/c on the roof. I need as much of the roof as possible for 600 - 800 watts of solar.
