Thanks for the feedback. After diving into this issue I had a long call with Tiffin. Had one of the Electrical guys go back to the factory floor to figure out where the 12Volt feed fuse is which is the bottom #2 wire on the master solenoid.
He called me back (Tiffin has the best people).
The fuse is a 200 Amp big guy (Middle Fuse) under a red flap on the firewall drivers side in the Generator compartment. (see the pictures).
Whe I removed the lug (middle position on the distribution bus) from the bus I saw that it was covered with body undercoating spray. Had to file it off, it was hard like a rock. This is an issue whereas you need good clean contacts for high average.
NAPA had them in stock so I bought two ($7.50 each). I also figured out the is a spare fuse in a third position not wired to anything for another power takeoff so I had a spare right there.
Coated all with Clear Protector to keep all from deteriorating.
Knowledge is power.
John, Nancy and our Choc Lab Abby
2018 Alegro Red 37PA, 2012 GeorgeTown 378XL
2003 H.R. Admiral 33', 6TT's