new owner with a stupid question

I just picked up my new 2007 bighorn 3400RL. When I did the walk thru the dealer was showing me the switches by the door in the closet. They could not tell me what one of the switches was for. These were the three residental style switches one of which is red. the one in the middle was labeled and the one on the far right was not labeled and they didn't know what it was. Anyone have any idea what that switch is for.

The unlabeled switch was probably for the exterior receptacle near the bedroom window, the one for awning lights. Can't believe they still don't label that one.

In our 2008, 3679 RL, the red one is the Water Heater. They one in the middle is the Paddle fan/light. And the one on the end is the outside 100v awning lights.

Hope this helps.

Ron