AC dead short?

[pattypape]

Hi Curt, Welcome back,

This is a PMMI modification to the polarity lights in the outside
power connection panel. These old Birds were designed before the GFI
was popular. Behind this small panel is a few resisters and light
emitting diodes. The resistors and lights must be changed as not
to trip the 110v 15/20 amp GFI circuit breaker, which we rarely use.
Therefore this issue does not arise very often. The 30amp and 50 amp
pedestal plugs do not have GFI so there is no problem here.

We do not have a dinette with a polarity light panel, so I am not
familiar. We do have one polarity light in the top overhead dash far
to the right near the AC volt meters.
PMMI will repair the unit or they will send the parts for you to
solder and replace. I did my own replacements, but if one is not
familiar with solder in a tight place you may choose to send it to
PMMI for a more professional job.

Doug Hampton http://www.pmmi-inc.com/

This panel can be removed and the AC connections can still be used.
Careful 110/220 volts can be present.

Bill 88 FC Michigan


--- In WanderlodgeForum@yahoogroups.com, Curt Sprenger
wrote:
>
> Bill,
> Is this the modification where we send the dinette control panel
to PMMI
> for mods? How about the polarity tester lights in the shore power
> connection panel, or does this get resolved by the modification to
the
> dinette control panel?
>
> Curt Sprenger 1987 PT38, Anaheim Hills, Calif.
>
>
>
> pattypape wrote:
>
> >
> >
> > Is this a GFI protected pedestal outlet???
> > Usually they are on the 15/20 amp park hook- up circuits.
> > An old Bird will trip GFI if the polarity tester lights
> > have not been modified.
> >
> > Bill 88 FC
> >
> > --- 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
> > >
> >
> >
>