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Old 04-06-2016, 07:03 AM   #12
rwidman
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City: North Charleston, SC
Country: USA
Join Date: Sep 2010
Posts: 4,385
Quote:
Originally Posted by Capt.Bill11 View Post
It sounds like a bad ground issue to me.
Yep, everything is a bad ground issue.

There are two parts to a DC electrical circuit, positive and negative ("ground"). A fault in either will disconnect the circuit. Since the fuses, circuit breakers and switches are in the positive part of the circuit, it's naturally more likely that the fault is in the positive side.

To the OP: As has been suggested, start with the batteries, Check the voltage there, then follow the cables and check at every connection point, fuse, circuit breaker, etc. Don't take anything apart. Wiggle the cables at the connections to determine if they are loose.

I'm guessing that you have limited electrical skills or you wouldn't have posted here so if you can't figure this out yourself, bring in a pro. Don't make things worse by disconnecting or moving wires.


BTW: There should be a fuse (usually) or circuit breaker in the positive DC cable from the house batteries within a few inches or perhaps a couple of feet from the positive connection to the batteries. This will be a large fuse, a few hundred amps. Check this. Check the voltage to ground from each side of the fuse or circuit breaker. If none of your DC appliances work, the trouble is between the batteries and the DC circuit panel or the main DC breaker in the panel. Or the ground.
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