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Summer/winter switch - Printable Version

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Summer/winter switch - Bob Lawrence - 02-07-2008 06:11

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)

Summer/winter switch - Curt Sprenger - 02-07-2008 06:43

Bob,
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 <"bobandarlene@earthlink.net"> 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

Summer/winter switch - car_go_van - 02-07-2008 07:15

Hi Bob

Check that none of the valves in thr engine comp have not vibrated
closed.
I have had this happen before.
If you sure they are all open,one of the gates may have come off the
bottom of the valve.

Regards
Allen PT40WB

--- In WanderlodgeForum@yahoogroups.com, "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)
>

Summer/winter switch - Bob Lawrence - 02-07-2008 13:32

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
>

Summer/winter switch - Curt Sprenger - 02-07-2008 14:20

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