1976 Minnie Winnie 12volt problem

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bigwave

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Jan 17, 2012
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Just bought my first 1976 Minnie Winnie . I didnt check out the 12volt system like an idiot! But when I hook up the two battries and unplug the outside 120v power nothing in the cab comes on.
 
Hi Bigwave - welcome to The RV Forum!

Your motorhome has two separate 12 volt systems - one runs the house systems (lights, water pump, fans, etc.) and uses the house battery.  The other is the standard van system that runs the engine, automobile lights, dash lights, etc. from the starting battery.

The 120 to 12 volt converter charges the house battery and runs the house system when you're plugged into electricity.  Some converters also charge the starting battery, but not all do.

Sounds like your starting battery is dead, possibly from a light or something else that it feeds being left on while you were plugged into power.  Or you might have a disconnect switch that was left off, so the battery is not feeding anything.
 
Be sure to check for battery switches on dash or by step that connect and disconnect aux. batteries as well.
 
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