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Old 10-11-2020, 08:35 PM   #5
steve2777
Member
 
Brand: Thor Motor Coach
Model: 2018 Siesta 24ST
State: Ohio
Posts: 99
THOR #15089
Need Advice from Electrical Expert!

Per 16ACE27's recommendation, I checked the power center to see if the new a/c's neutral and hot wires were reversed: They're not; but I tested some circuits with an ohmmeter, and came up with something I can't explain. If I tested between the neutral bus and each circuit breaker's black wire contact screw, every circuit EXCEPT the a/c circuit showed a reading of between .05 and .5 kohm. But the a/c circuit showed a reading of .5 mohm. Since my meager understanding is that since a mohm is 1000 times a kohm, it seems like the a/c circuit is 1000 times or more as "short circuited" as any other AC circuit. (a/c = air conditioner; AC = alternating current). Is this normal? Is this the reason that, when the a/c starts up on generator, the generator display states "short circuit!" and the generator shuts down? And if this is a short circuit, why doesn't a circuit breaker trip when the a/c runs on shore power?

I am really out of my depth here; any advice would be appreciated.
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