I have a 1990 roadtrek the problem is I keep blowing fuses for furnace,interior lights,stove exhaust fan any ideas why and how to fix.Also where can I get a diagram of the wiring.Thank you
You might try contacting Roadtrek to see if they have a wiring diagram. I don't know how far back their records go.
From your message I conclude that different 12 volt fuses will blow at random times. Does this happen when using battery power or when using shore power? If you have a generator, does it happen when using the generator for power?