thanks, that info is valuable in trying to track down this 'issue'...
I know I have a 'momentary' Use/Store doorside switch, which should be controlling the RV CUSTOM PRODUCTS device, to shut off 12v power to the coach and the inverter.
I also have the dash AUX switch, which is a press-and-hold type switch to combine the House and Chassis battery banks. I suppose this goes thru the 80amp Buss Breaker and the WhiteRodgers 12v coil(?), which also has it's own separate 30amp inline FUSE attached, and PURPLE and WHITE secondary wires.(see below)
I'm still not sure about what the Trombetta 12v coil is for, as it's not even shown on this diagram... it sits above the other coil, under a large loom of wirings, and is very hard to see or get to, with maybe GREEN and BLACK secondary wires.
It's also covered in dirt/grime, although the WhiteRodgers coil is perfectly clean(?)(see below)
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