Thor Forums

[cavie]

Originally Posted by steve2777

When I used the ohmmeter, no current, either shore power or generator, was on. Also, the AC master and all circuit breakers were off. I was trying to see if there was an observable short between the black/hot wire and the white/neutral with no power in the system, and was frankly surprised to see any resistance readings at all, but let's face it, I really don't have a handle on this.

Sounds from what you're saying that, if anything, there was less resistance in the a/c circuit than the other circuits. But maybe I'm barking up the wrong tree.

Cummins Onan manual says when you get the "short circuit!" message, determine which appliance is at fault and repair/replace it. Seems like I've determined that, as the a/c shuts off the generator as soon as it comes on. But how can the a/c have a short when it's on generator power, and not on shore power?

It can't. My money is on the transfer switch or generator wireing.