I don't need an adapter, it's a regular three prong for shore power, so I did use a regular extension cord from inverter to shore power plug and got the same ground fault.
It seems like if I apply the power at or before the junction box (from perspective of shore power) I get a ground fault, but if I apply power passed the junction box everything is good. Hmmm...seems the junction box is an issue... I have not tried to power the system the way it was designed (shore power, no inverter), but maybe I should and see if it works...
Another idea I had is to use the suicide cord and connect to the back of an outlet, essentially the same as doing the male to male, but with hard connections instead of a plug. That would take the junction box out of the picture.
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It seems like if I apply the power at or before the junction box (from perspective of shore power) I get a ground fault, but if I apply power passed the junction box everything is good. Hmmm...seems the junction box is an issue... I have not tried to power the system the way it was designed (shore power, no inverter), but maybe I should and see if it works...
Another idea I had is to use the suicide cord and connect to the back of an outlet, essentially the same as doing the male to male, but with hard connections instead of a plug. That would take the junction box out of the picture.
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