A/C problems

[Ralph L. Fullenwider]

Corey, the transfer switch I am talking about is not internal in the
inverter. It should be located in the 4th bay door back from the front on
the drivers side. It is the main power switch from shore power/gen
set/inverter in that order. Inside the grey box will be 2 contactors and a
circuit board. Power is sensed by the circuit board in this order, shore
power, if none the gen set, if none then inverter and with some testing in
that box will determine your problem or at least which way you need to go.
It is notorious for going south and needs to be replaced when it does
because the board is obsolete (sound familiar?)

I suggested switching the inverter side of the inverter/charger off to try
to start isolating the problem. This is one that can have you chasing
rainbows all over the place. And what you described below tells me that
your problem is the TOD auto power switch.

Safe travels,

Ralph and Charolette Fullenwider
84FC35 "Ruff Diamond"
Duncan, Oklahoma

At 03:38 AM 8/4/2008 +0000, you wrote:
>Ok, so far I have tried the things you have recommended, with the
>exception of the GFI,
>but I don't know where it is. There is one in the bathroom, but I cant
>get it to do
>anything for me, I'll have to look into it.
>
>I have one inverter panel that is reading AC input from the generator, and
>the HVAC
>units are running. BUT, when I try to run all 3 is when an overload
>condition happens on
>leg 2, while leg 1 shows very minimal draw.
>
>I have pulled the inverter for leg 2 out, and have the cover off to see if
>I can locate the
>transfer switch. Looks as though it isn't functioning, but I'm not sure
>how the entire
>setup works exactly. I can manually change the switch and get the
>inverter to show DC
>amps on the panel, but still no AC input. My problem is, the only way I
>can charge the
>coach batteries is to run the generator. I don't understand why I'm not
>able to draw any
>power for the shore cord.
>
>I plan to find a repair facility near me that can help me with some of
>these problems, so
>that may be my next task. Although I certainly prefer to do the work myself.
>
>Corey & Jenni
>1996 PT42'
>Prosper, TX
>
>
>
>
>
>--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
> wrote:
> >
> > Hi Corey:
> >
> > First things first. One the inverter panels, turn both inverters to off
> and
> > set the charging system to on. Then go back to your main breaker panel,
> > locate the breaker for leg one and leg 2, switch them off then back on and
> > switch the GFI breaker off then back on.
> >
> > Now check your gauges and see what you have. Your chargers are on leg 2
> and
> > I am betting that is the leg that is showing 105 vac. You can verify this
> > by switching both chargers off for a minute. The voltage should come back
> > to 120vac steady. If not then the auto transfer switch is suspect.
> >
> > You may have 1 or more cells in a single battery pulling your system down
> > too. They need to be load tested individually if the above has not reset
> > the problem.
> >
> > Oh switch off your Aqua hot breaker as it may pulling the system down
> as well.
> >
> > Bottom line is it sounds very much like an automatic transfer switch has
> > the brain board bad.
> >
> > Safe travels,
> >
> > Ralph and Charolette Fullenwider
> > 84FC35 "Ruff Diamond"
> > Duncan, Oklahoma
> >
> > At 10:43 PM 8/3/2008 +0000, you wrote:
> > >I am having some problems with my electrical system that started showing
> > >up on a road
> > >trip last week.
> > >
> > >As of today, I have no power while connected to shore power. I went to
> > >the bus today to
> > >check on things, and the battery light on my inverter panels was flashing
> > >indicating a low
> > >charge. I first checked the basics, all breakers, house breaker to 50amp
> > >receptacle, and I
> > >know that I am getting 50amps of 220 to the coach. Now, one of the
> panels
> > >will show
> > >A/C input when the generator is running, but the second panel will never
> > >indicate that is
> > >it receiving A/C input.
> > >
> > >Secondly, on the voltage/amperage gauges over the door, it is indicating
> > >that leg 1 is
> > >running very low amps, and normal 130volts, while leg 2 is showing very
> > >high amperage,
> > >in the 40 range, while only showing around 105volts.
> > >
> > >I am not sure if there is anything I can do in the mean time to at least
> > >get the coach
> > >charging without running the generator. Is there an external transfer
> > >switch, or is all the
> > >transfer handled by the inverters? Does this mean I have a bad inverter?
> > >
> > >Also, I have heard several folks mention Paul Davis, and Mr. Oliver. Do
> > >they have service
> > >facilities, and would they be recommended to service these busses? They
> > >are only about
> > >15mins from me.
> > >
> > >Thanks
> > >Corey and Jenni Graham
> > >1996 PT42
> > >Prosper TX
> >
>
>