Thanks all!
Coach goes back to storage tomorrow. I think it will be Irish Spring in the engine and generator area, and moth balls around the outside. (Belt AND suspenders approach!)
Another problem showed up, no TV signal from the antenna. Found rusty connections on the roof. Required new ends on the TV cables, and some protective coverings on each. Also, every cable connection was loose inside. Suggest each of you check yours, if you haven't done that.