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Old 10-22-2019, 05:24 PM   #1
Rivet Master
Al and Missy's Avatar
2002 30' Classic S/O
Fleming Island , Florida
Join Date: Nov 2013
Posts: 4,408
12 volt circuit breaker note

While dry camping this past weekend Missy plugged a 12v cigarette lighter to usb adapter into the bedroom lighter receptacle and the lights went out. On closer examination of the adapter I discovered the entire body was metal and there was only about 1/8” separation from the hot end to the negative side body. The hot end apparently engaged while part of it was still in contact with the ground side of the outlet.

I immediately checked all the 12 volt circuit breakers. No buttons were apparently popped up but I pressed them all anyway to be sure. No joy.

I assumed one of the splices I installed when I moved the electrical panel had failed and proceeded to check them all. That’s 4 hours in a cramped position I’ll never get back. I corrected one questionable splice but still no lights on that circuit.

In desparation I got out my meter only to discover that circuit 1 had no power. The button was not visibly raised. I pressed it with no result, so I got a toothpick and pressed it again. I heard a click and the lights came on. There was no percepible movement of the button and after being reset it looked just like it did tripped.

Moral of the story - there is no visual clue that a 12 volt breaker is tripped and you should use a small pointed object when resetting 12 volt breakers.

“You cannot reason someone out of a position they have not been reasoned into"
Al, K5TAN and Missy, N4RGO WBCCI 1322
2002 Classic 30 Slideout -S/OS #004
2013 Dodge 2500 Laramie 4x4 Megacab Cummins
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