Like Clifftall said you need to leave the doors open or you will get mildew. Only other option is to leave it on with ac power if you can plug it in. Some people leave theirs on and some like me turn off and leave doors open, I don't have ac power while in storage. I always turn off main switch and aux switch when coach is in storage to prevent any battery drainage. Doing this I have never had a problem with the batteries draining down.
Bob and Janice Ford
1998 Fleetwood Pace arrow 35'