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Old 05-03-2012, 03:38 PM   #15
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If the Romex type wire is solid conductors I would not expect it to carry DC voltage. Normally the DC circuits are wired with stranded wire. Single conductor. Unless this light fixture has a step down transformer. Which I don't think it does.
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Old 05-03-2012, 06:34 PM   #16
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those look like self resetting breakers.
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Old 05-04-2012, 10:13 AM   #17
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I think I may have found the problem.

We mounted the new fuse panel to the metal battery box. The DC connector shorts out when the metal battery box is installed in the trailer. The DC connection works just fine when the box is out of the trailer.

It seems that I am breaking some sort of grounding rule and shorting out the DC connector when the metal battery box is making connection with the frame (or maybe touching some plumbing...but I don't think so). That is the only difference when the rig is in/out of the utility area.

So, we are either going to insulate the fuse panel from the metal battery box or built a new box that won't ground out.

Man, this has been an education/adventure!

J.B.

p.s. I'll post pix when I calm down.
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Old 05-04-2012, 10:16 AM   #18
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I would generally agree, but the connection for my ceiling fan/exhaust fan/scare light are all solid conductors. Appears to be that way from the factory. The AC lines are also solid core "romex" style too.

Just gotta go with it. Not going to gut her to switch it out. They work fine when the system is hooked up.
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Old 05-06-2012, 08:11 PM   #19
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SUCCESS!!!

Was a loose wire-nut that was shorting out a lighting fixture on the aluminum skin above the kitchen area. The aluminum was acting as a conductor, and shorting out the entire 12V lighting system. Just took some trouble-shooting and a bit of hard work (and luck) to find the culprit.

Thanks so much for the help.
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Old 05-06-2012, 08:29 PM   #20
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We knew you could do it. Enjoy being in the light.
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