1992 Chevy Mallard Sprinter Electrical Problems

[joshtb86]

Hello!

I purchased a 1992 Chevvy Mallard Sprinter used with 31k miles on it and noticed the following issue:

When I turn on the chassis battery, none of the chassis 12v utilities run (fridge, lights, fans).

If I run the motor and the alternator is on, the 12v chassis utilities operate.

None of the AC utilities operate unless it is plugged into a shore line or the AC generator is running.

I am brand new to RVs and do not really have an idea of where to start. Any help is appreciated.

Thanks!


This is the carfax info

1990 CHEVROLET P30
MOTORIZED HOME
7.4L V8 TBI OHV
GASOLINE
REAR WHEEL DRIVE

[Krusty]

Sounds like it is operating normally. None of the things you mentioned (fridge, lights, fans) would run off the chassis battery. They would run off the coach battery. None of the 120 volt AC stuff will run off the 12 volt system unless you have them connected to an inverter.

[Lwiddis]

RV twenty-five years old with electrical issues is not surprising. Sorry.