Coach is charging good with the replacement solenoid. The other selenoids works when I ad 12 volts to the third post so I'm pretty sure it's just the dash boost switch that isn't energizing the boost function. No biggy ... Bigger fish to fry this week.
The batteries are fully charged and the furnace lights right up, but the jury is still out how it does during the night on round two or three fan draws with lower voltage.
Thank to everyone who helped , great group of guys here.
So now my wife reminds me that the oven didn't work last time out ..so I guess I'll start yet another "help" thread. If you guys know anything about propane stoves , I'll link my question here to find me.