I'm not sure what has happened. I have a new Bighorn 3160EL. Spent 2 weeks in it then took it in to get a few things fixed. Just arrived at our destination on our 2nd trip and the entry door and screen seem to be misaligned and stick. Then we found the kitchen pantry door jammed shut. It was misaligned so bad I had to lift from the bottom of the door just to turn the handle and open it. Everything else seems okay; bedroom and bathroom doors seem to work as before. Any ideas what might have happened?