I went out to the RV today and this is what I found. It seems one of the main doors has cracked.. The other door up at the front is fine but the one in the back is not. Here's a pic. What could of mad...
Some doors only have the cardboard honeycomb type filler and little cross support. Just a little bit of water getting in from a vent hole on top of door will tranform cardboard stiffener to mush. Then just opening and closing can do even more damage. If you have to get another door and if you haven't priced them out yet they are exspensive for what you get.