It looks like now is the time to upgrade your venting and 'fridge installation. Good time to improve on factory venting, insulation, and isolation from the interior (I've seen some of the factory dividers/sealers-off-from-the-interior that lacked a bit).
Not that one ever likes to be *forced* to do these things by a leak, mind you
At least you're getting this taken care of in the off season. Just think how nice it's going to be to hear rain and *know* that your trailer is staying bone dry