Unruly Generator!

[Ralph L. Fullenwider]

Johnny:

Question: Is the redi line still in your Coach? Is it, or the compartment
still in the curb side rear under the louvered door next to the battery
bank? In the lower rear is where either the isolator or two heavy duty
solenoids are located.

It is doubtful that water on the start/stop switch would do this, though
not impossible. Check the wiring coming out of the control box to the gen
set for abrasions, cuts or general disrepair, that may be the cause. And it
very well could be that something inside the start solenoid slipped, or a
weak spring holding the contacts just finally made it to the contacts. Hard
to tell, not being there. It is always hard to troubleshoot something that
is working now.

Safe travels,

Ralph ( Off to Texas to do a PDI today)
Ralph's RV Solutions, Duncan, Oklahoma
http://home.swbell.net/rlf47/index.htm

At 02:15 AM 8/11/2005 +0000, you wrote:
>Thanks Ralph and Shane for your replys.
>Do you think that water in wiring harness to the start/stop switches
>inside could have caused this problem. I know that touching the lead
>from the start switch inside with a test light will pull up the ( I
>believe C relay ) and cause the engine to start. This tells me that a
>high resistance ground would probably do the same thing. The engine
>not restarting supports your opinion that the problem is the starter
>solenoid but why did it start the first time. I have tested the
>solenoids in the boost circut and they appear to be OK.
>After thinking about the order that I disconnected the batteries if I
>had first done the start battery and then the charger the starter
>probably have stopped cranking and I could have left the house
>batteries connected. Tomorrow I am going to do just that and see if
>the gen engine will crank without pushing the boost switch. Would
>this be a good test for the isolator?
>Thanks again,
>Johnny M Slone
>Pikeville, KY
>1984 PT35
>
>
>--- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
> wrote:
> > Johnny:
> >
> > The contacts in the starting solenoid are welding together so it
>sounds
> > like. The 12vdc "C" relay must close to supply power to the "S" (
>starter
> > solenoid coil) for the starter to turn, then opens up to stop the
>starter
> > but when it opens the contacts in that relay the coil of the CR
>relay (
> > 110vac) holds the rest of the circuit until the stop relay, "CR2"
>is
> > energized by the stop switch. So if the starter tries to start
>again after
> > pushing the stop switch then the run/start contacts in the start
>solenoid
> > must have welded shut. That it is working ok now further supports
>that
> > theory as probably the welded contacts have finally un stuck. But
>you can
> > bet they will weld again soon.
> >
> > If you have an battery isolator then the house batteries should not
>supply
> > 12vdc to the gen set, unless it has been by passed of has faulted
>as well.
> > Or some contacts in the charging system for the gen battery are
>welded as
> > well. These are high amperage solenoids and take a pretty good hit
>each
> > time they are brought on line.
> >
>