Thanks for the insightJWL said:somewhat, in the fact that the first trip I tried it before we left, it came on and I shut it off. On our trip, turned it on in the morning, it fired up for a bit and shut off, never to fire up again. I started digging through everything. The other couple we were with has an older Fleet and he has been through the whole “it’s the sail switch” thing from day one with his rig. So after swapping propane tanks, opening the back we tried opening the front. Bingo! It came on and stayed working the rest of the 4 days out, with the face plate off.
It took me several tries to get the duct work tight enough not to cross over, I didn’t want to cut it and risk “voiding the warranty”. The only thing left to see is if this will still work at altitude. But that is going to be awhile off cause I live in Texas.
I'm not ready to do anything until I can replicate the problem....otherwise how do you know you fixed it right?
If nothing works, this would be easy enough to try and I'll keep this in my bag of tricks.
None of this explains why turning the truck on started the furnace again (I don't think). That to me means it needed more juice. Yet it runs fine with LESS juice now...
Maybe I just need to head to the hills with my tools and go for it. (what a chore lol)