AC dead short?

[freewill2008]

Hi John -

Say, just open up the breaker panel and splice a 50 amp service
directly to the bad circuit. Now just follow your nose to the smoke
and you've found the short )

But seriously, its hard to find a problem like this even when I'm in
your bus. Are you anywhere near the left coast these days?

Hows things?

BobG '84 FC31 WLII Olympia WA

--- In WanderlodgeForum@yahoogroups.com, "John Ely"
wrote:
>
> 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
>