We have had the AC going with the door open for things like hearing kids nap in our camper or to hear the dog when she's inside and we are out. I am starting to believe that this is on the "do not" list of things to do? usually when it happens is when we are away with the windows shut or at night when everything's shut and we wake up with wet pillows. I can understand the sloshing theory while traveling.
I keep calling our RV dealer and the service desk keeps leading me to voice mail. I've got a hunch that this will be a giant pain. I can fix anything but i don't feel like i should have to in the first year.