AC dead short?
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08-22-2006, 04:09
Post: #1
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AC dead short?
I have just developed a dead short in two circuits of my AC system.
The front receptacles and the vacuum cleaner circuits appear to be dead shorted. If they are on, the park circuit breaker (30 amps) trips. If they are off, I get normal service from the park. The thing these two circuits have in common is the AC meters on the dinette control panel. The front receptacles circuit provides power to one of the dinette AC meters while the vacuum cleaner circuit provides power to the other. I have removed all loads from both of these circuits with no change. I've pulled the cover from the breaker box and these breakers have only one 12ga. wire going to them, so the meters must be wired in downstream somewhere, but I have no idea where or even where to look. As a possibly related matter, about two weeks ago, after a lightning storm near Montreal, I noted that the polarity indicators in my service box (the place where shore power is connected) are no longer working. As there are also polarity indicators on the dinette panel, there is a possible likage here. However, there was a two + week span of normality between the loss of polarity lights in the service box and the short circuits in the AC panel. No incident occurred prior to the AC loss; it worked fine in one park, we took a long (15 hour ferry ride) with the DC systems shut down, and had the shorts as soon as I plugged in at the next park. If anyone has any ideas as to what this might be, I'd be glad to hear them. John Ely, 86PT40, Rapid City, SD On the road in Clarke's Beach, Newfoundland |
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Messages In This Thread |
AC dead short? - John Ely - 08-22-2006 04:09
AC dead short? - sfedeli3 - 08-22-2006, 04:27
AC dead short? - pattypape - 08-22-2006, 04:47
AC dead short? - Curt Sprenger - 08-22-2006, 05:01
AC dead short? - Tom Warner - 08-22-2006, 05:30
AC dead short? - pattypape - 08-22-2006, 06:58
AC dead short? - one_dusty_hoot - 08-22-2006, 10:24
AC dead short? - Gardner Yeaw - 08-22-2006, 12:13
AC dead short? - freewill2008 - 08-22-2006, 13:12
AC dead short? - Curt Sprenger - 08-23-2006, 03:30
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