Engine Preheat Switch

[Rick Davis]

Steve, your Primus has to be turned on for that upper dashswitch 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

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%40yahoogroups.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
>