Ford Idaho nailed it.
My coach is being stored at my in-laws house and it was my father-in-law who did me a favor and hooked up the batteries. Without checking how they're hooked up, I went in and checked everything out, seeing how everything worked just fine except those listed above.
After reading your posts, and while over their house for Easter this weekend, I cracked open the battery compartment and, sure enough, the two small gage wires were just dangling. As soon as I connected them to the positive lead, the stairs went up. Everything functions beautifully and learning has occurred. I now know exactly where to look (to include the 40 amp fuse) next time any one of those three things goes out.
Thanks to all of you for assisting with this. I love this forum!
2012 Georgetown 351DS
“Some people spend an entire lifetime wondering if they made a difference in the world. But, the Marines don't have that problem.”
― Ronald Reagan