Its been awhile, so this will be the final update on this round of irksome. Like GPWayne mentioned, there final diagnosis was a in the engine fan subsystem - specifically, the fan clutch. While they were there, the Coolant Level Sesnor was also replaced. Total financial impact was just over $3k. There was another part that was ordered but not needed, cost - another $1.4K A claim has been submitted to Good Sams.
From there it was off the RV services for the slides, right side rear tire splash guard - hinge busted, and a new exhaust pipe. No trouble found with the slides - gremlins? Temporary fix on the splash guard - will be sourcing or repairing. >any advice is appreciated
Now on a trip downeast - departure was delayed by a day because the chassis batteries failed to start the coach. So they were replaced. No claim pending. Replacing the batteries may ultimately exorcise the slide gremlins.
The coach goes into winter storage in two weeks. Sniff.
I guess the RV Brain isn't the one that was primitive.