Forum Discussion
BB_TX
Jul 12, 2015Nomad
The GFCI will trip due to a fault in the 120 vac system, not the 12 vdc system. The GFCI compares the current flowing into the hot pin to the current flowing out the neutral pin. If there is more than something like 5 milliamperes difference it will trip. Likely you have a neutral to ground fault somewhere. A hot to ground fault will usually (but not always) trip a breaker.
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