Summer/winter switch

[Curt Sprenger]

Bob,
Sounds like you have found the problem, bad sporlan valve. Please let us know if the front heaters put out heat with with sporlans removed and manual valves install. Good idea to change out all the hoses you can, especially around/near the engine.

On Feb 7, 2008 5:32 PM, Bob Lawrence <"bobandarlene@earthlink.net"> wrote:

Thanks for the replies.

I took the valves out of the line. I checked for voltage and one of

them had 12v on it.

Somebody a while back said they took them out and put in manual gate

valves. This is what I am doing today. Changing out some of those

hoses also. They are 24 years old.

For us, all we want is front heat. The over the road heaters we have

never used and don't plan on.

Thanks again.

Bob Lawrence

84 PT36

Boulder City, Nv

> In our coach, one sporlan valve is hot all the time...with or

without the

> key on.

>

> Take your 12V test light and test for voltage at each (two) sporlan

valve.

> If voltage is present at one valve and that valve is not warm to

the touch,

> I'd suspect the sporlan valve is bad.

>

> If no 12V present at the valves, check the summer/winter switch(s)

to be

> sure they have 12V in and 12V out. If 12V on one side of the

switch and not

> the other would tell me the switch is bad. This assume the switch

(s) are in

> the on position.

>

> No 12V present on either side of the S/W switch could mean there

are fuses

> or circuit breakers somewhere that may have failed. I'm not

familiar with

> your coach wiring. Do you have the wiring diagrams? If not, maybe

someone

> with chime in with the location of the breakers or fuses.

>

> Please keep us posted.

>

> Good luck.

>

>

>

> On Feb 7, 2008 10:11 AM, Bob Lawrence wrote:

>

> > Hi,

> > My front heat stopped working..just blows out cold air.

> >

> > Anybody tell me what fuse area to look in?

> >

> > Someone at the Q rally said the sporlan valves in rear could be

the

> > problem. Seems one of them should be hot at all times as voltage

is on

> > either the Summer or Winter side.

> >

> > Both of mine are cold. Sould I have the key on to make one of

them hot?

> > Seems like if they are part of the phantom load one should be

warm at

> > all times.

> >

> > Wife wants feet heat out of the dash when we take off again in a

couple

> > of months.

> >

> > Are the kits hard to install in the back and I wonder if I should

just

> > buy a complete valve instead of kit.

> > Thanks.

> >

> > Bob Lawrence

> > 84 PT36

> > Boulder City, Nv (seeing Vegas, not impressed)

> >

> >

> >

>

>

>

> --

> Curt Sprenger

> 1987 PT38 8V92 "MacAttack Racing"

> Anaheim Hills, CA

>

--
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA