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Topic: Kool-o-matic vent  (Read 491 times) previous topic - next topic

Kool-o-matic vent

Our vent fan over the stove has failed, it tries to run, but just can't seem to get going. My wife wants me to "fix" it. I would rather replace it with a Maxx air fan. I took the motor out, but am not sure how to fix it. She seems determined to find another motor even if it's used. Just would like to get perspective/opinions of the group. The Maxx fan seems more efficient from what I've researched, but I'd like to know what the the more experienced have to say.
Michael & Roxene, Aussie the wonder dog & his daughter Luna the lunatic.
1993 Grand Villa Unihome 280 build #4203
36' 8.3 Cummins 300 hp- 2001 Chevrolet Tracker toad

Re: Kool-o-matic vent

Reply #1 –
Type kool o matic into the Forum search box, hit enter.  You'll get 6 pages of opinions.

1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Kool-o-matic vent

Reply #2 –
I replaced our bathroom fan with the Maxxair.  It moves a tremendous amount more air than the basic fan that used to be in the bathroom, plus it is extremely quiet.  I really like the variable speed control too.
You can open a window 3 or 4 inches and with the fan on, you can feel the large volume of air moving through the coach. It makes a nice breeze through the bedroom at night with a window open.
In my opinion, it is well worth the money, and a pretty basic swap out.
Mark & Bev
2001 U295 36' Slide
Cummins ISC 8.3 350HP
Build #5802
Jeep Wrangler Toad

Re: Kool-o-matic vent

Reply #3 –
Mike : Follow Chucks advice and do the search. Napa Auto Parts has an exact replacement  motor. Won't be home for a couple of hours if you don't find it sooner I will look up.
The Starship- 1990 Grandvilla Unihome U300 40ft
6V92 Detroit Diesel w/ 4 spd Allison w/ retarder. Build# 3575 , Foretravel# 17895
The Shuttlecraft- 2015 Ford Explorer
Steve ( N6EKV ) & Lori ( N6JTD ) Faries  w/ Marlee our precious pup.
Patterson CA.

Re: Kool-o-matic vent

Reply #4 –
Found it. Napa Auto Parts #655-2378  $64.36
The Starship- 1990 Grandvilla Unihome U300 40ft
6V92 Detroit Diesel w/ 4 spd Allison w/ retarder. Build# 3575 , Foretravel# 17895
The Shuttlecraft- 2015 Ford Explorer
Steve ( N6EKV ) & Lori ( N6JTD ) Faries  w/ Marlee our precious pup.
Patterson CA.

Re: Kool-o-matic vent

Reply #5 –
Is pulling the blade off the shaft difficult, do I need a special tool?
Michael & Roxene, Aussie the wonder dog & his daughter Luna the lunatic.
1993 Grand Villa Unihome 280 build #4203
36' 8.3 Cummins 300 hp- 2001 Chevrolet Tracker toad

Re: Kool-o-matic vent

Reply #6 –
Listen to your wife...  We think Kool o matic works great in any weather, rain or shine.

Re: Kool-o-matic vent

Reply #7 –
Quote from: mikerox –
Is pulling the blade off the shaft difficult, do I need a special tool?

I replaced my motor way back in 2015, and of course had the blade off, and remember using allen wrenches. 
And then recently did a MaxxAir, and  wish I had not wasted the money and time messing with the old unit for too long/years.
Dave Cobb
Buckhorn Lake Resort The Club, #6202, Kerrville TX
check the map.  I do rent it out when I am traveling!
2001, U320, 36' #5887, in Kerrville, FT Club #17006, (7/23 to present)
2024 Jeep Grand Cherokee L, Summit, white
EX: 98 U295, 36' #5219, (mid door), (4/13-10/23)
EX: 93 U225, 36' (4/11 to 4/13)

Re: Kool-o-matic vent

Reply #8 –
Quote from: steve31 –
Found it. Napa Auto Parts #655-2378  $64.36
Steve,  you may need to change the fuse to a 20 amp
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: Kool-o-matic vent

Reply #9 –
Here's the rocker switch.

https://www.newark.com/eaton/160411e/switch-rocker-spdt-16a-250v-black/dp/23F004?CMP=e-email-sys-invoice-NA-Product

I'm running the NAPA motor, but if you want to try and save the original:

The fan blades come off the motor shaft with a hex key.

Drill a hole into the bearing area and add a few drops of oil.

The motor doesn't work.  You need to remove it to replace it anyway. You need to remove the fan to swap it.

Good luck soldering those wires to the new switch.  I added female spade flag connectors and a spacer.  The solder peel right off the stove.
1992 Foretravel Grand Villa
U225 SBID Build No. 4134
1986 Rockwood Driftwood
1968 S.I.A.T.A. Spring
1962 Studebaker Lark
1986 Honda VF700C
1983 Honda VF750C
Charlie, the Dog was broken out of jail 24 Oct 2023
N1RPN
AA1OH (H)e who must be obeyed.