Hi spotrot,
Good to hear you were able to resolve your problem. And you're right about finding the problem AND being able to do the work yourself. There is no way we would've been able to enjoy the RV lifestyle the way we have if we had to rely on dealers and paid mechanics. So far, we've been able to do everything ourselves on our Class A.
Thanks for the follow-up post too! It's always good to read about the resolution to problems so future readers of the forums with a similar problem can gain knowledge from your solution.
Safe travels!
~Rick