Shutting off the heat

[Wayne Kotila]

Jerry:

As far as I know the winter summer switch supplies 12 volt power to the chassis heat thermostat to run the blowers at each of the heat exchangers and the switch also should supply power to the 12 volt solenoid coils on the water valve or valves that have to open to allow the heated antifreeze to flow thru the chassis heat exchangers and thru the pilot/copilot heat exchangers. I am assuming that when you turn the switch to winter and the ignition is on it energizes the coils and they open the water vaves. If this is how it works then if the switch is off that would indicate that a water valve is stuck and not closing when the coil is in the de-energized state.

Do you have the front heat switch on the lower dash switched to off?

Wayne

1985PT40

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From: jburgessx2
To: WanderlodgeForum@yahoogroups.com
Sent: Friday, May 29, 2009 12:48:52 AM
Subject: [WanderlodgeForum] Re: Shutting off the heat

Wayne,

I have it set to summer but it still seems to poor the heat out. We are on I-5 heading back to Port Hueneme and it was a hot one today. My wife set a thermometer by her feet to check the temp - 105 degrees at the co-pilots seat feet!!! My feet were at 87 degrees. I had the generator running with two of the AC's going trying to cool it down. My dash AC doesn't work and I haven't fixed it yet. I was hoping there was some way to turn the heat off at the engine.

I don't think the heat of the generator and the heat of the road could produce 105 degrees in the passengers seat but I could be wrong.

Oh well, we will be home by noon tomorrow and I guess I can look into it further. Maybe I have a stuck valve somewhere that isn't allowing the winter/summer switch to work properly.

Jerry
85 PT40

--- In "WanderlodgeForum%40yahoogroups.com", Wayne Kotila wrote:
>
> There is a summer/winter rocker switch on the left side of the overhead dash area, if it is set to summer the chassis heat system will be off.
> Wayne
> 1985 PT40
>
>
>
>
> ____________ _________ _________ __
> From: "amweatherly@ ..."
> To: "WanderlodgeForum%40yahoogroups.com"
> Sent: Thursday, May 28, 2009 4:38:27 PM
> Subject: [WanderlodgeForum] Re: Shutting off the heat
>
>
>
>
>
> --- In WanderlodgeForum@ yahoogroups. com, "jburgessx2" wrote:
> >
> > So, how do I shut the heat off in this 85
PT40? I've turned off all know switches on dash and panels above. But, we are still getting heat out of the vents. I'm guessing it's coming from the chassis heating system since all the others are off. Surely their must be a valve to shut off somewhere. . .
> >
> > When it's 100 degrees outside I would rather not have any heat on. . .
> >
> > Jerry
> > 85 PT40
> >
>
> Jerry,
>
> There are four valves in the engine compartment. Two of which control the pilot/copilot heat, the other two supply coolant to all the other
> chassis heaters. My bluebook says three are located on the rear of the engine and one is on the left bank, about 1/2 way up the side
> of the engine. Never could find that one. I located the 4th one also in the rear of the engine. Two are visible, two are down in front of the rear bumper, practicly invisible. If all you want is to shut of heat,
Ralph's post is a damn sight easier
>
> Art Weatherly
> Riverside Ca.
> '85 PT 36
>