KOOLOMATIC FAN MOTOR/SWITCH

[lcondosta]

I PURCHASED A MOTOR FROM NAPA PARTS.Part#655-2012.Take the swicth to a NAPA
store and they have a switch book .If I remember correctly that switch is a
heater three speed switch early GM.Hope this helps.Lee Condosta 85 PT 40 Holden
Beach N.C

[lcondosta]

I PURCHASED A MOTOR FROM NAPA PARTS.Part#655-2012.Take the swicth to a NAPA
store and they have a switch book .If I remember correctly that switch is a
heater three speed switch early GM.Hope this helps.Lee Condosta 85 PT 40 Holden
Beach N.C

[Ernie Ekberg]

Lee, that is good to know. Napa will be around for quite a while. Ernie Ekberg 83PT40 Wanderlodge Weatherford, Tx http://autos.groups.yahoo.com/group/erni...gandrepair --- On Mon, 3/30/09, lcondosta wrote: From: lcondosta Subject: [WanderlodgeForum] KOOLOMATIC FAN MOTOR/SWITCH To: WanderlodgeForum@yahoogroups.com Date: Monday, March 30, 2009, 8:17 PM I PURCHASED A MOTOR FROM NAPA PARTS.Part#655- 2012.Take the swicth to a NAPA store and they have a switch book .If I remember correctly that switch is a heater three speed switch early GM.Hope this helps.Lee Condosta 85 PT 40 Holden Beach N.C

[Pete Masterson]

In December, I purchased an electric motor replacement for the Kool-o-matic from Grainger, item #1LWK8 for $23.85. However, that item was discontinued. A new motor, Grainger item #3LCH7, seems to be the successor to the motor I bought. It's priced at $39.10 and has very nearly the exact same specifications.

This motor is not a _direct_ replacement for the OEM Kool-O-Matic fan motor. The motor body was very slightly larger in diameter than the OEM motor, but the mounting easily adjusted to hold it tightly.

Fitting the fan blades was slightly more of a problem. First I cut off the mounting studs. Then there was theslightly more difficult problem that the shaft (1/4" dia.) is undersized. After a couple of ineffective tries to shim the shaft, I purchased a 1/16" thick sheet of aluminum plate, cut a rectangle and bent it into a cylinder that just fit over the shaft and within the fan's shaft-hole. A few light taps with hammer, and the fan was seated. Tightening the shaft clamping bolt (against the flattened edge of the shaft) finished the process.

A hand-held test (hold on tight, the fan generates a lot of torque) showed that the fan was very slightly out of balance. Unfortunately, I had no way to balance the fan. (A static balance test before mounting the fan did not show anysignificantbalance problems). Once I installed the fan in the Kool-O-Matic vent opening, a trial at the lowest speed proved that the apparent imbalance was not an issue. The fan operated at all three speed settings with no problems. Subsequently, I decided that there was not sufficient difference in fan noise (with this motor) between the low and high settings, so I set the switch to high and buttoned everything up.

In a final, and longer test, I noticed an odd whistling noise when the fan was operating. After some experimenting, I discovered that the sliding window in the entry door was allowing wind to whistle in through gaps in its weather stripping. Apparently, the new motor causes the fan to _really_ suck air. (Probably best to have a window or another vent open to allow air to flow through the coach.)

Considering the new, higher price, I'm not sure that the extra hassle in making this motor work with the Kool-O-Matic as compared to the NAPA fan motor (assuming it's a direct replacement). However, for me the $23.85 vs. $69 price was worth the savings.

Grainger has other fan motors listed that might work, but they are all more expensive.

Pete Masterson

'95 Blue Bird Wanderlodge WBDA 42

El Sobrante CA

"aeonix1@mac.com"

On Mar 31, 2009, at 4:58 AM, Ernie Ekberg wrote:

Lee, that is good to know. Napa will be around for quite a while. Ernie Ekberg 83PT40 Wanderlodge Weatherford, Tx http://autos.groups.yahoo.com/group/erni...gandrepair --- OnMon, 3/30/09, lcondosta<"lcondosta@hotmail.com">wrote: From: lcondosta <"lcondosta@hotmail.com"> Subject: [WanderlodgeForum] KOOLOMATIC FAN MOTOR/SWITCH To:"WanderlodgeForum@yahoogroups.com" Date: Monday, March 30, 2009, 8:17 PM I PURCHASED A MOTOR FROM NAPA PARTS.Part#655- 2012.Take the swicth to a NAPA store and they have a switch book .If I remember correctly that switch is a heater three speed switch early GM.Hope this helps.Lee Condosta 85 PT 40 Holden Beach N.C

[lcondosta]

--- In WanderlodgeForum@yahoogroups.com, Pete Masterson wrote:
>No modification needed to the NAPA motor.Lee Condosta Holden Beach nc
> In December, I purchased an electric motor replacement for the Kool-o-
> matic from Grainger, item #1LWK8 for $23.85. However, that item was
> discontinued. A new motor, Grainger item #3LCH7, seems to be the
> successor to the motor I bought. It's priced at $39.10 and has very
> nearly the exact same specifications.
>
> This motor is not a _direct_ replacement for the OEM Kool-O-Matic fan
> motor. The motor body was very slightly larger in diameter than the
> OEM motor, but the mounting easily adjusted to hold it tightly.
>
> Fitting the fan blades was slightly more of a problem. First I cut off
> the mounting studs. Then there was the slightly more difficult problem
> that the shaft (1/4" dia.) is undersized. After a couple of
> ineffective tries to shim the shaft, I purchased a 1/16" thick sheet
> of aluminum plate, cut a rectangle and bent it into a cylinder that
> just fit over the shaft and within the fan's shaft-hole. A few light
> taps with hammer, and the fan was seated. Tightening the shaft
> clamping bolt (against the flattened edge of the shaft) finished the
> process.
>
> A hand-held test (hold on tight, the fan generates a lot of torque)
> showed that the fan was very slightly out of balance. Unfortunately, I
> had no way to balance the fan. (A static balance test before mounting
> the fan did not show any significant balance problems). Once I
> installed the fan in the Kool-O-Matic vent opening, a trial at the
> lowest speed proved that the apparent imbalance was not an issue. The
> fan operated at all three speed settings with no problems.
> Subsequently, I decided that there was not sufficient difference in
> fan noise (with this motor) between the low and high settings, so I
> set the switch to high and buttoned everything up.
>
> In a final, and longer test, I noticed an odd whistling noise when the
> fan was operating. After some experimenting, I discovered that the
> sliding window in the entry door was allowing wind to whistle in
> through gaps in its weather stripping. Apparently, the new motor
> causes the fan to _really_ suck air. (Probably best to have a window
> or another vent open to allow air to flow through the coach.)
>
> Considering the new, higher price, I'm not sure that the extra hassle
> in making this motor work with the Kool-O-Matic as compared to the
> NAPA fan motor (assuming it's a direct replacement). However, for me
> the $23.85 vs. $69 price was worth the savings.
>
> Grainger has other fan motors listed that might work, but they are all
> more expensive.
>
> Pete Masterson
> '95 Blue Bird Wanderlodge WBDA 42
> El Sobrante CA
> aeonix1@...
>
>
>
> On Mar 31, 2009, at 4:58 AM, Ernie Ekberg wrote:
>
> > Lee, that is good to know. Napa will be around for quite a while.
> >
> > Ernie Ekberg
> > 83PT40
> > Wanderlodge
> > Weatherford, Tx
> > http://autos.groups.yahoo.com/group/erni...gandrepair
> >
> >
> > --- On Mon, 3/30/09, lcondosta wrote:
> > From: lcondosta
> > Subject: [WanderlodgeForum] KOOLOMATIC FAN MOTOR/SWITCH
> > To: WanderlodgeForum@yahoogroups.com
> > Date: Monday, March 30, 2009, 8:17 PM
> >
> > I PURCHASED A MOTOR FROM NAPA PARTS.Part#655- 2012.Take the swicth
> > to a NAPA store and they have a switch book .If I remember correctly
> > that switch is a heater three speed switch early GM.Hope this
> > helps.Lee Condosta 85 PT 40 Holden Beach N.C
> >
> >
> >
> >
>

[pattypape]

Usually the fan switch is three speed ,
but only one speed can be used. An ohm meter can be used to
chose a fan speed resistance.
Then purchase a high wattage resistor from Radio Shack,
by-passing the defective switch.

The original switch is an automotive heater fan speed control switch.

Bill 88 FC Michigan

--- In WanderlodgeForum@yahoogroups.com, Ernie Ekberg wrote:
>
> Lee, that is good to know. Napa will be around for quite a while.
>
>
> Ernie Ekberg
> 83PT40
> Wanderlodge
> Weatherford, Tx
> http://autos.groups.yahoo.com/group/erni...gandrepair
>
> --- On Mon, 3/30/09, lcondosta wrote:
>
> From: lcondosta
> Subject: [WanderlodgeForum] KOOLOMATIC FAN MOTOR/SWITCH
> To: WanderlodgeForum@yahoogroups.com
> Date: Monday, March 30, 2009, 8:17 PM
>
>
>
>
>
>
> I PURCHASED A MOTOR FROM NAPA PARTS.Part#655- 2012.Take the swicth to a NAPA
store and they have a switch book .If I remember correctly that switch is a
heater three speed switch early GM.Hope this helps.Lee Condosta 85 PT 40 Holden
Beach N.C
>