94pt 'cool o matic' gally exhaust fan

[Ron Hazlett]

If anyone has removed their cool-o-matic Fan cover and has no use for
it. I would be happy to purchase it from them! Mine was damaged by a
falling tree branch.

Ron Hazlett
1987 FC The Hideaway
Ron.hazlett@...


--- In WanderlodgeForum@yahoogroups.com, "Joyce and Richard Hayden"
wrote:
>
> Pete,
> I, like Curt, removed the cool-o-matic unit and replaced with a
Fantastic. The motor with blade and grille are good and you may have
them for the shipping if you like. If interested let me know soon as
we are heading to our winter quarters near the middle of Oct.
>
> Dick Hayden - '87 PT 38 - Lake Stevens, WA
> ----- Original Message -----
> From: Pete Masterson
> To:
WanderlodgeForum@yahoogroups.com om>
> Sent: Tuesday, September 30, 2008 9:48 AM
> Subject: Re: [WanderlodgeForum] 94pt 'cool o matic' gally exhaust
fan
>
>
> The Fantastic Fan as a replacement makes sense ... but I like the
> cool-o-matic because it allows me to run the fan (and get
> ventilation) even if its raining.
>
> Does anyone have info about "Maxxaire" or other alternatives that
> might allow all-weather use of the fan?
>
> Note, my cool-o-matic quit a few days ago. I'm not sure if it's
the
> thermostat or the fan itself -- or a fuse (anybody know where the
> fuse is?). (I don't know when I'll have time to do a full trouble-

> shooting on the fan while we're on the road...)
>
> Pete Masterson
> '95 Blue Bird Wanderlodge WBDA 42
> aeonix1@...
> On the road near Scranton, PA
>
> On Sep 30, 2008, at 11:25 AM, Curt Sprenger wrote:
>
> > Greg,
> >
> > Replace the cool-0-matic with an Fantastic Fan, the rain
sensor, 3
> > speed, in/out. Wire it to the same cool-O-matic thermostat
wires.
> > You'll have a new fan and more light in the kitchen.
> >
> > On Tue, Sep 30, 2008 at 7:55 AM, Gregory OConnor
> > > wrote:
> > My center exhaust fan is a 12 volt roof mount exhaust. I keep it
> > running on a wall mounted thermostat(as designed) set at 90degF
> > with a window open and a cheap home style heater duct filter in
the
> > window. works good, the filter gets choked with dust that would
> > otherwise settle in the parked bus or fan blades and motor
(should
> > have a window open at each end but am too lazy).
> >
> > I took the fan housing apart to clean and lube a noisy bearing
and
> > uncovered a stowed three speed switch under the fan. the switch
says
> > potentiometer and has two springs at back which I believe are
heat
> > sinks (they get hot). I would like to have access to the switch
to
> > reduce the speed while drycamping (layoff Leroy) and conserve
> > battery. I also like the idea of a slower moving fan while
stored
> > and unattended and a higher speed fan while cooking.
> >
> > I was thinking of hard wireing around the switch and moving the
> > potentiometer/switch to the wall near the thermostat . if you
have
> > the switch where the fan mfg designed (thru a hole in the
cover) you
> > cant slid in the headliner blank. Prob with moving the switch is
> > the "heat sink" in the wall???? I dont even know if the
thermostat
> > has a wire 'to the fan' or 'to a relay - to the fan'??? also of
> > concern is the need for a heat sink?? does a product that
produce
> > heat (pot switch),not consume energy?? would a rheostat be a
better
> > choice for the wall??? gotta learn more about potentiometer vs
> > rheostat, both cool words but must be more to their differences.
> >
> > Greg94ptCa
> >
> >
> >
> >
> >
> > --
> > Curt Sprenger
> > 1987 PT38 8V92 "MacAttack Racing"
> > Anaheim Hills, CA
> >
>

[Don Bradner]

Mine also has Green, Brown, and White. Green-to-white turns the Kool-o-matic on,
Brown to white is the heater.

I replaced with a Hunter 42999B from Wal-Mart, digital. Green to the G terminal,
Brown to W, White to Rh, with a jumper from Rh to Rc. Y has no connection.

Works very, very well.

Don Bradner
90 PT40 "Blue Thunder"
Posting today by satellite near Rodanthe, on the NC Outer Banks
My location: http://www.bbirdmaps.com/user2.cfm?user=1

On 9/30/2008 at 4:47 PM Pete Masterson wrote:

>I checked all the fuses in the overhead (it's different on a PT-42)
>power center and didn't find any blown fuses/tripped breakers.
>
>After disassembling a few things, I'm suspecting that the thermostat
>is shot. There's a lot of corrosion on the back side, down where the
>switches are mounted.
>
>I'm aware of how to turn on the fan, so that's not the problem. I
>previously had intermittent operation (that is, the fan would cycle
>on and off -- without regard to the thermostat setting -- but then it
>seemed to (mostly) be working as expected for several months. Last
>Friday, it refused to go on despite whatever manipulation. In the
>past, when the fan failed to come on, slamming the front door often
>started it up -- but even that doesn't work now.
>
>I took some things apart and found no 'juice' at the fan.
>
>The thermostat has 3 wires coming it its backside, white, green, and
>brown. Shorting either the green or brown to the white (presumably
>ground) causes the toe-heater to come on. (This was with the middle
>part of the thermostat removed, so the switches weren't active.) How
>the thermostat circuits work is a mystery to me.
>
>I'm going to try to find a replacement thermostat at a home center
>(although, we're heading into Amish country in a couple of days, so
>finding a home center with anything but lanterns might prove
>difficult...)
>
>
>Pete Masterson
>'95 Blue Bird Wanderlodge WBDA 42
>aeonix1@...
>On the road near Scranton, PA
>
>
>
>On Sep 30, 2008, at 3:35 PM, Gregory OConnor wrote:
>
>> Kool o matic fan fuse on 94pt is
>> front overhead component panel circuit block A "sk5"
>> above driver ,in cabinet block close to street side,
>>
>> to turn on the fan you need to play wit the center thermostat
>> try puttining one switch to cool and the fan on auto with the
>> thermostat on a low temp setting. to have it run on auto you need to
>> pick cool I guess it keeps from exhaustinng generated heat.
>> Greg94pt
>>
>
>------------------------------------
>
>Yahoo! Groups Links
>
>
>

[Pete Masterson]

Dick,

I appreciate the offer -- but I'm about to start moving the rig more
frequently, so I don't have an address where I can receive the stuff
-- at least not until January.

Thanks.

Pete Masterson
'95 Blue Bird Wanderlodge WBDA 42
aeonix1@...
On the road near Scranton, PA



On Sep 30, 2008, at 7:09 PM, Joyce and Richard Hayden wrote:

> Pete,
> I, like Curt, removed the cool-o-matic unit and replaced with a
> Fantastic. The motor with blade and grille are good and you may
> have them for the shipping if you like. If interested let me know
> soon as we are heading to our winter quarters near the middle of Oct.
>
> Dick Hayden - '87 PT 38 - Lake Stevens, WA
> ----- Original Message -----
> From: Pete Masterson
> To: WanderlodgeForum@yahoogroups.com
> Sent: Tuesday, September 30, 2008 9:48 AM
> Subject: Re: [WanderlodgeForum] 94pt 'cool o matic' gally exhaust fan
>
> The Fantastic Fan as a replacement makes sense ... but I like the
> cool-o-matic because it allows me to run the fan (and get
> ventilation) even if its raining.
>
> Does anyone have info about "Maxxaire" or other alternatives that
> might allow all-weather use of the fan?
>
> Note, my cool-o-matic quit a few days ago. I'm not sure if it's the
> thermostat or the fan itself -- or a fuse (anybody know where the
> fuse is?). (I don't know when I'll have time to do a full trouble-
> shooting on the fan while we're on the road...)
>
> Pete Masterson
> '95 Blue Bird Wanderlodge WBDA 42
> aeonix1@...
> On the road near Scranton, PA
>
> On Sep 30, 2008, at 11:25 AM, Curt Sprenger wrote:
>
> > Greg,
> >
> > Replace the cool-0-matic with an Fantastic Fan, the rain sensor, 3
> > speed, in/out. Wire it to the same cool-O-matic thermostat wires.
> > You'll have a new fan and more light in the kitchen.
> >
> > On Tue, Sep 30, 2008 at 7:55 AM, Gregory OConnor
> > wrote:
> > My center exhaust fan is a 12 volt roof mount exhaust. I keep it
> > running on a wall mounted thermostat(as designed) set at 90degF
> > with a window open and a cheap home style heater duct filter in the
> > window. works good, the filter gets choked with dust that would
> > otherwise settle in the parked bus or fan blades and motor(should
> > have a window open at each end but am too lazy).
> >
> > I took the fan housing apart to clean and lube a noisy bearing and
> > uncovered a stowed three speed switch under the fan. the switch says
> > potentiometer and has two springs at back which I believe are heat
> > sinks (they get hot). I would like to have access to the switch to
> > reduce the speed while drycamping (layoff Leroy) and conserve
> > battery. I also like the idea of a slower moving fan while stored
> > and unattended and a higher speed fan while cooking.
> >
> > I was thinking of hard wireing around the switch and moving the
> > potentiometer/switch to the wall near the thermostat . if you have
> > the switch where the fan mfg designed (thru a hole in the cover) you
> > cant slid in the headliner blank. Prob with moving the switch is
> > the "heat sink" in the wall???? I dont even know if the thermostat
> > has a wire 'to the fan' or 'to a relay - to the fan'??? also of
> > concern is the need for a heat sink?? does a product that produce
> > heat (pot switch),not consume energy?? would a rheostat be a better
> > choice for the wall??? gotta learn more about potentiometer vs
> > rheostat, both cool words but must be more to their differences.
> >
> > Greg94ptCa
> >
> >
> >
> >
> >
> > --
> > Curt Sprenger
> > 1987 PT38 8V92 "MacAttack Racing"
> > Anaheim Hills, CA
> >
>
>
>

[Pete Masterson]

Ron,

Go ahead and work with Dick -- I'm not in a position to receive a
unit -- and I'm not sure that my cool-o-matic is actually dead, since
I'm not getting power to the fan.

Pete Masterson
'95 Blue Bird Wanderlodge WBDA 42
aeonix1@...
On the road near Scranton, PA



On Sep 30, 2008, at 7:52 PM, Ron Hazlett wrote:

> If anyone has removed their cool-o-matic Fan cover and has no use for
> it. I would be happy to purchase it from them! Mine was damaged by a
> falling tree branch.
>
> Ron Hazlett
> 1987 FC The Hideaway
> Ron.hazlett@...
>
>
> --- In WanderlodgeForum@yahoogroups.com, "Joyce and Richard Hayden"
> wrote:
>>
>> Pete,
>> I, like Curt, removed the cool-o-matic unit and replaced with a
> Fantastic. The motor with blade and grille are good and you may have
> them for the shipping if you like. If interested let me know soon as
> we are heading to our winter quarters near the middle of Oct.
>>
>> Dick Hayden - '87 PT 38 - Lake Stevens, WA
>> ----- Original Message -----
>> From: Pete Masterson
>> To:
> WanderlodgeForum@yahoogroups.com > om>
>> Sent: Tuesday, September 30, 2008 9:48 AM
>> Subject: Re: [WanderlodgeForum] 94pt 'cool o matic' gally exhaust
> fan
>>
>>
>> The Fantastic Fan as a replacement makes sense ... but I like the
>> cool-o-matic because it allows me to run the fan (and get
>> ventilation) even if its raining.
>>
>> Does anyone have info about "Maxxaire" or other alternatives that
>> might allow all-weather use of the fan?
>>
>> Note, my cool-o-matic quit a few days ago. I'm not sure if it's
> the
>> thermostat or the fan itself -- or a fuse (anybody know where the
>> fuse is?). (I don't know when I'll have time to do a full trouble-
>
>> shooting on the fan while we're on the road...)
>>
>> Pete Masterson
>> '95 Blue Bird Wanderlodge WBDA 42
>> aeonix1@...
>> On the road near Scranton, PA
>>
>> On Sep 30, 2008, at 11:25 AM, Curt Sprenger wrote:
>>
>>> Greg,
>>>
>>> Replace the cool-0-matic with an Fantastic Fan, the rain
> sensor, 3
>>> speed, in/out. Wire it to the same cool-O-matic thermostat
> wires.
>>> You'll have a new fan and more light in the kitchen.
>>>
>>> On Tue, Sep 30, 2008 at 7:55 AM, Gregory OConnor
>>> > wrote:
>>> My center exhaust fan is a 12 volt roof mount exhaust. I keep it
>>> running on a wall mounted thermostat(as designed) set at 90degF
>>> with a window open and a cheap home style heater duct filter in
> the
>>> window. works good, the filter gets choked with dust that would
>>> otherwise settle in the parked bus or fan blades and motor
> (should
>>> have a window open at each end but am too lazy).
>>>
>>> I took the fan housing apart to clean and lube a noisy bearing
> and
>>> uncovered a stowed three speed switch under the fan. the switch
> says
>>> potentiometer and has two springs at back which I believe are
> heat
>>> sinks (they get hot). I would like to have access to the switch
> to
>>> reduce the speed while drycamping (layoff Leroy) and conserve
>>> battery. I also like the idea of a slower moving fan while
> stored
>>> and unattended and a higher speed fan while cooking.
>>>
>>> I was thinking of hard wireing around the switch and moving the
>>> potentiometer/switch to the wall near the thermostat . if you
> have
>>> the switch where the fan mfg designed (thru a hole in the
> cover) you
>>> cant slid in the headliner blank. Prob with moving the switch is
>>> the "heat sink" in the wall???? I dont even know if the
> thermostat
>>> has a wire 'to the fan' or 'to a relay - to the fan'??? also of
>>> concern is the need for a heat sink?? does a product that
> produce
>>> heat (pot switch),not consume energy?? would a rheostat be a
> better
>>> choice for the wall??? gotta learn more about potentiometer vs
>>> rheostat, both cool words but must be more to their differences.
>>>
>>> Greg94ptCa
>>>
>>>
>>>
>>>
>>>
>>> --
>>> Curt Sprenger
>>> 1987 PT38 8V92 "MacAttack Racing"
>>> Anaheim Hills, CA
>>>
>>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>

[Pete Masterson]

Good info!! Just what I needed to know. If I can find a Walmart in
this state, I'll take a look at the Hunter thermostat.

Pete Masterson
'95 Blue Bird Wanderlodge WBDA 42
aeonix1@...
On the road near Scranton, PA



On Sep 30, 2008, at 9:56 PM, Don Bradner wrote:

> Mine also has Green, Brown, and White. Green-to-white turns the
> Kool-o-matic on, Brown to white is the heater.
>
> I replaced with a Hunter 42999B from Wal-Mart, digital. Green to
> the G terminal, Brown to W, White to Rh, with a jumper from Rh to
> Rc. Y has no connection.
>
> Works very, very well.
>
> Don Bradner
> 90 PT40 "Blue Thunder"
> Posting today by satellite near Rodanthe, on the NC Outer Banks
> My location: http://www.bbirdmaps.com/user2.cfm?user=1
>
> On 9/30/2008 at 4:47 PM Pete Masterson wrote:
>
>> I checked all the fuses in the overhead (it's different on a PT-42)
>> power center and didn't find any blown fuses/tripped breakers.
>>
>> After disassembling a few things, I'm suspecting that the thermostat
>> is shot. There's a lot of corrosion on the back side, down where the
>> switches are mounted.
>>
>> I'm aware of how to turn on the fan, so that's not the problem. I
>> previously had intermittent operation (that is, the fan would cycle
>> on and off -- without regard to the thermostat setting -- but then it
>> seemed to (mostly) be working as expected for several months. Last
>> Friday, it refused to go on despite whatever manipulation. In the
>> past, when the fan failed to come on, slamming the front door often
>> started it up -- but even that doesn't work now.
>>
>> I took some things apart and found no 'juice' at the fan.
>>
>> The thermostat has 3 wires coming it its backside, white, green, and
>> brown. Shorting either the green or brown to the white (presumably
>> ground) causes the toe-heater to come on. (This was with the middle
>> part of the thermostat removed, so the switches weren't active.) How
>> the thermostat circuits work is a mystery to me.
>>
>> I'm going to try to find a replacement thermostat at a home center
>> (although, we're heading into Amish country in a couple of days, so
>> finding a home center with anything but lanterns might prove
>> difficult...)
>>
>>
>> Pete Masterson
>> '95 Blue Bird Wanderlodge WBDA 42
>> aeonix1@...
>> On the road near Scranton, PA
>>
>>
>>
>> On Sep 30, 2008, at 3:35 PM, Gregory OConnor wrote:
>>
>>> Kool o matic fan fuse on 94pt is
>>> front overhead component panel circuit block A "sk5"
>>> above driver ,in cabinet block close to street side,
>>>
>>> to turn on the fan you need to play wit the center thermostat
>>> try puttining one switch to cool and the fan on auto with the
>>> thermostat on a low temp setting. to have it run on auto you need to
>>> pick cool I guess it keeps from exhaustinng generated heat.
>>> Greg94pt
>>>
>>
>> ------------------------------------
>>
>> Yahoo! Groups Links
>>
>>
>>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>

[Don Bradner]

Wal-Mart carries many Hunter thermostats, so look at them closely, as many would
not be suitable for the purpose. The 42999B may be the only one, in fact.

On 10/1/2008 at 9:31 AM Pete Masterson wrote:

>Good info!! Just what I needed to know. If I can find a Walmart in
>this state, I'll take a look at the Hunter thermostat.
>
>Pete Masterson
>'95 Blue Bird Wanderlodge WBDA 42
>aeonix1@...
>On the road near Scranton, PA
>
>
>
>On Sep 30, 2008, at 9:56 PM, Don Bradner wrote:
>
>> Mine also has Green, Brown, and White. Green-to-white turns the
>> Kool-o-matic on, Brown to white is the heater.
>>
>> I replaced with a Hunter 42999B from Wal-Mart, digital. Green to
>> the G terminal, Brown to W, White to Rh, with a jumper from Rh to
>> Rc. Y has no connection.
>>
>> Works very, very well.
>>
>> Don Bradner
>> 90 PT40 "Blue Thunder"
>> Posting today by satellite near Rodanthe, on the NC Outer Banks
>> My location: http://www.bbirdmaps.com/user2.cfm?user=1
>>
>> On 9/30/2008 at 4:47 PM Pete Masterson wrote:
>>
>>> I checked all the fuses in the overhead (it's different on a PT-42)
>>> power center and didn't find any blown fuses/tripped breakers.
>>>
>>> After disassembling a few things, I'm suspecting that the thermostat
>>> is shot. There's a lot of corrosion on the back side, down where the
>>> switches are mounted.
>>>
>>> I'm aware of how to turn on the fan, so that's not the problem. I
>>> previously had intermittent operation (that is, the fan would cycle
>>> on and off -- without regard to the thermostat setting -- but then it
>>> seemed to (mostly) be working as expected for several months. Last
>>> Friday, it refused to go on despite whatever manipulation. In the
>>> past, when the fan failed to come on, slamming the front door often
>>> started it up -- but even that doesn't work now.
>>>
>>> I took some things apart and found no 'juice' at the fan.
>>>
>>> The thermostat has 3 wires coming it its backside, white, green, and
>>> brown. Shorting either the green or brown to the white (presumably
>>> ground) causes the toe-heater to come on. (This was with the middle
>>> part of the thermostat removed, so the switches weren't active.) How
>>> the thermostat circuits work is a mystery to me.
>>>
>>> I'm going to try to find a replacement thermostat at a home center
>>> (although, we're heading into Amish country in a couple of days, so
>>> finding a home center with anything but lanterns might prove
>>> difficult...)
>>>
>>>
>>> Pete Masterson
>>> '95 Blue Bird Wanderlodge WBDA 42
>>> aeonix1@...
>>> On the road near Scranton, PA
>>>
>>>
>>>
>>> On Sep 30, 2008, at 3:35 PM, Gregory OConnor wrote:
>>>
>>>> Kool o matic fan fuse on 94pt is
>>>> front overhead component panel circuit block A "sk5"
>>>> above driver ,in cabinet block close to street side,
>>>>
>>>> to turn on the fan you need to play wit the center thermostat
>>>> try puttining one switch to cool and the fan on auto with the
>>>> thermostat on a low temp setting. to have it run on auto you need to
>>>> pick cool I guess it keeps from exhaustinng generated heat.
>>>> Greg94pt
>>>>
>>>
>>> ------------------------------------
>>>
>>> Yahoo! Groups Links
>>>
>>>
>>>
>>
>>
>>
>> ------------------------------------
>>
>> Yahoo! Groups Links
>>
>>
>>
>
>
>------------------------------------
>
>Yahoo! Groups Links
>
>
>

[Gregory OConnor]

The thermostat output wires probably doesnt even power the fan. most likely it powers a bosch relay.

• there is a fuse for the thermostat power (above driver sk10) this power wire to the thermostat is green
• and a fuse for the fan relay power (above driver sk10) power wire is orange/black.
• The fan relay switch (K8,a bosh relay above driver) gets a 12v signal from the thermostatfixture to send another source of 12v power power(sk10) to the fan
[/list]


The thermostat sends a signal back to the relay above the driver. that signal causes the relay to make contact and connects the sk10 fuse to the fan. the potentiometer at the fan then dictates the speed. for the fan to work both fuses the relay and the potentiometer must check out ok.


you can test the fan inplace by hooking it up to a portable carbattery jump pack. if it runs it still may not be good, could be drawing too much amps and the reason some issue of power faulted in one of the fuese, relays or potentiometer.


an ampmeter between the battery and the power should prove draw ( I dont know how to measure amp draw). My fan has a lable that says 8 .5 amp full speed.


since the fan is not powered directly by the thermostat I can not relocate the potentiometer to the thermostat wall.


Greg94ptCa

[Pete Masterson]

Greg,

More good info... I thought I saw an orange/black wire going to the
fan motor -- that explains where it comes from. I'll have to spend
more time studying the overhead fuse panel -- I don't have a
schematic of that one, so it's been a little hard to see what is what...

Pete Masterson
'95 Blue Bird Wanderlodge WBDA 42
aeonix1@...
On the road near Scranton, PA (heading to Lancaster, PA, soon)...



On Oct 1, 2008, at 11:34 AM, Gregory OConnor wrote:

> The thermostat output wires probably doesnt even power the fan.
> most likely it powers a bosch relay.
>
> there is a fuse for the thermostat power (above driver sk10) this
> power wire to the thermostat is green
> and a fuse for the fan relay power (above driver sk10) power wire
> is orange/black.
> The fan relay switch (K8, a bosh relay above driver) gets a 12v
> signal from the thermostat fixture to send another source of 12v
> power power(sk10) to the fan
> The thermostat sends a signal back to the relay above the
> driver. that signal causes the relay to make contact and connects
> the sk10 fuse to the fan. the potentiometer at the fan then
> dictates the speed. for the fan to work both fuses the relay and
> the potentiometer must check out ok.
>
> you can test the fan inplace by hooking it up to a portable
> carbattery jump pack. if it runs it still may not be good, could
> be drawing too much amps and the reason some issue of power faulted
> in one of the fuese, relays or potentiometer.
>
> an ampmeter between the battery and the power should prove draw ( I
> dont know how to measure amp draw). My fan has a lable that says 8 .
> 5 amp full speed.
>
> since the fan is not powered directly by the thermostat I can not
> relocate the potentiometer to the thermostat wall.
>
> Greg94ptCa
>
>

[Joyce and Richard Hayden]

Ron,

The cover is available if you want it. No cost, just pay the shipping and it's yours. I must tell you though, the rear corners have both cracked some. Not enough to ruin it and could be repaired with fiberglass. Certainly better than one that has been smashed by a tree.

Same deal as with Pete, we will be leaving soon so let me know.

Dick Hayden - '87 PT 38 - Lake Stevens, WA

----- Original Message -----

From: "ron.hazlett@verizon.net"

To: "WanderlodgeForum@yahoogroups.com"

Sent: Tuesday, September 30, 2008 4:52 PM

Subject: [WanderlodgeForum] Re: 94pt 'cool o matic' gally exhaust fan

If anyone has removed their cool-o-matic Fan cover and has no use for
it. I would be happy to purchase it from them! Mine was damaged by a
falling tree branch.

Ron Hazlett
1987 FC The Hideaway
"Ron.hazlett@verizon.net"

--- In "WanderlodgeForum@yahoogroups.com", "Joyce and Richard Hayden"
.> wrote:
>
> Pete,
> I, like Curt, removed the cool-o-matic unit and replaced with a
Fantastic. The motor with blade and grille are good and you may have
them for the shipping if you like. If interested let me know soon as
we are heading to our winter quarters near the middle of Oct.
>
> Dick Hayden - '87 PT 38 - Lake Stevens, WA
> ----- Original Message -----
> From: Pete Mastersonaeonix1@...>
> To:
"WanderlodgeForum%40yahoogroups.com" om>
> Sent: Tuesday, September 30, 2008 9:48 AM
> Subject: Re: [WanderlodgeForum] 94pt 'cool o matic' gally exhaust
fan
>
>
> The Fantastic Fan as a replacement makes sense ... but I like the
> cool-o-matic because it allows me to run the fan (and get
> ventilation) even if its raining.
>
> Does anyone have info about "Maxxaire" or other alternatives that
> might allow all-weather use of the fan?
>
> Note, my cool-o-matic quit a few days ago. I'm not sure if it's
the
> thermostat or the fan itself -- or a fuse (anybody know where the
> fuse is?). (I don't know when I'll have time to do a full trouble-

> shooting on the fan while we're on the road...)
>
> Pete Masterson
> '95 Blue Bird Wanderlodge WBDA 42
> aeonix1@...<mailto:aeonix1%40mac.com>
> On the road near Scranton, PA
>
> On Sep 30, 2008, at 11:25 AM, Curt Sprenger wrote:
>
> > Greg,
> >
> > Replace the cool-0-matic with an Fantastic Fan, the rain
sensor, 3
> > speed, in/out. Wire it to the same cool-O-matic thermostat
wires.
> > You'll have a new fan and more light in the kitchen.
> >
> > On Tue, Sep 30, 2008 at 7:55 AM, Gregory OConnor
> > ..Gregoryoc%40aol.com>> wrote:
> > My center exhaust fan is a 12 volt roof mount exhaust. I keep it
> > running on a wall mounted thermostat(as designed) set at 90degF
> > with a window open and a cheap home style heater duct filter in
the
> > window. works good, the filter gets choked with dust that would
> > otherwise settle in the parked bus or fan blades and motor
(should
> > have a window open at each end but am too lazy).
> >
> > I took the fan housing apart to clean and lube a noisy bearing
and
> > uncovered a stowed three speed switch under the fan. the switch
says
> > potentiometer and has two springs at back which I believe are
heat
> > sinks (they get hot). I would like to have access to the switch
to
> > reduce the speed while drycamping (layoff Leroy) and conserve
> > battery. I also like the idea of a slower moving fan while
stored
> > and unattended and a higher speed fan while cooking.
> >
> > I was thinking of hard wireing around the switch and moving the
> > potentiometer/switch to the wall near the thermostat . if you
have
> > the switch where the fan mfg designed (thru a hole in the
cover) you
> > cant slid in the headliner blank. Prob with moving the switch is
> > the "heat sink" in the wall???? I dont even know if the
thermostat
> > has a wire 'to the fan' or 'to a relay - to the fan'??? also of
> > concern is the need for a heat sink?? does a product that
produce
> > heat (pot switch),not consume energy?? would a rheostat be a
better
> > choice for the wall??? gotta learn more about potentiometer vs
> > rheostat, both cool words but must be more to their differences.
> >
> > Greg94ptCa
> >
> >
> >
> >
> >
> > --
> > Curt Sprenger
> > 1987 PT38 8V92 "MacAttack Racing"
> > Anaheim Hills, CA
> >
>

[Robert Akins]

Have any of you contacted Kool-O-Matic. Their web site is

www.kool-o-matic.com

They no longer manufacture systems but still provide spare parts. I recently bought a replacement motor and speed control from them and everything worked like new.

Robert Akins

1987 PT 40