I have no clue as to what fixed it but it's working like it should right now. I was on the phone with the tech that put in the new cooling unit when it decided to work. He said he knew he was good, but didn't realize he could talk something into working from 300 miles away.
He is GOOD, reasonable, and honest. He's going to take a look at it when we go back thru Patrick.
Kelly's RV Repair, Satellite Beach, FL. Near Patrick AFB and he can get on base.