12 volts issues
Hi I am new to this forum, I have an older Class c 1982 21' Citation GMC I have a problem with my 12volts system if I plug in (110)overnight to get the fridge cold and unplug the next morning and ...
Forum Discussion
A voltmeter should reveal where the problem is. If you have 12.6 V at the batteries and much less at the lights or fuse box, the problem is between those two points. A long wire connected to battery negative and meter negative as you check a light voltage would be a good check for ground contacts. I would carefully check the voltage on each side of the battery cutoff relay or switch to see if voltage is lost there.
