Engine Preheat Switch

[SteveQ]

Rick

I converted to a Webasto Scholastic unit so I only have one zone. The preheat
pump will work regardless if there is heat or not.

Steve Quandt
1993 PT-40
Iron Mountain MI
now in Marble Falls, TX



--- In WanderlodgeForum@yahoogroups.com, Rick Davis wrote:
>
> Steve, your Primus has to be turned on for that upper dash switch to
circulate fluid to the engine, right? And if so, my coach as two boilers for
two zones, so which zone needs to be activated for that engine preheat to work?
>
> Rick Davis
> 1993 WBSA
> Loudon, TN
> (in New Orleans)
>
>
>
>
> ________________________________
> From: SteveQ
> To: WanderlodgeForum@yahoogroups.com
> Sent: Wed, February 17, 2010 7:01:05 PM
> Subject: [WanderlodgeForum] Re: Engine Preheat Switch
>
> Â
> Mike
>
> On to the left, off to the right on my 93. There is a pump, I think it is
twelve volts that is behind my house battery trays. It circulates warm hot water
/ antifrezze mix to the engine and I think the hot water heater from you Primus
or Webasto unit. I found mine this summer when I turned on the switch and heard
it.
>
> Enjoying the weather in the Texas Hill country, above zero and no snow to
shovel
>
> Steve Quandt
> 1993 PT-40
> Iron Mountain MI
> now in Marble Falls, TX
>
> --- In WanderlodgeForum@ yahoogroups. com, "mbulriss" <mbulriss@ .> wrote:
> >
> > OK, I have one of those how-to questions that is not answered in 'the book'.
On my 91 on the far left topmost driver overhead dash panel, there is a black
two position toggle switch labeled "Engine Preheat" - that's it, no "on" or
"off" indication, no light. My question is: Is "on" when the switch is toggled
in to the left side or the right side of the switch? What kind of electrical
draw should I see on any of the gauges when it is on - *if* it is working?
> >
> > Normally, we try to stay out of such climates where I would actually need
said switch, until this past weekend in the Texas hills where it got well below
freezing. ;^)
> >
> > Thanks,
> >
> > Mike Bulriss
> > 1991 WB40 "Texas Minivan"
> > San Antonio, TX
> >
>