cab heather connection


The old and reliable.

Pile of Parts
Pile of Parts

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Post Sun Nov 27, 2016 8:30 am

cab heather connection

hello on my kb-3 it have 3 wires on cab heater.. 3 speed or??? thank's

Golden Jubilee
Golden Jubilee

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Post Sun Nov 27, 2016 9:01 pm

Re: cab heather connection

If it has the "barn door" heater, it is two speed, forward and reverse. You reverse the four blade fan to draw air thru and feed the hottest air to the squirrel cage blower for the defrost, turn it forward to put more heat into the cab, the defrost works with the motor running in either direction.

Freshly Restored
Freshly Restored

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Post Sun Nov 27, 2016 10:26 pm

Re: cab heather connection

If it is the original fan motor on the barn-door style heater it would have 4 wires, not counting ground wire screwed to the heater assembly. It is entirely possible the fan motor was changed at some point to a different one
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Golden Jubilee
Golden Jubilee

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Post Mon Nov 28, 2016 12:23 pm

Re: cab heather connection

picture would help,
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Pile of Parts
Pile of Parts

Posts: 49

Joined: Fri Nov 11, 2016 11:50 am

Post Thu Dec 01, 2016 8:19 am

Re: cab heather connection

hello i removed entire cab heather and really 3 wires two speed and a ground + one ground connec to frame at exit of wire on unit motor and the motor is not running. I dissembly it and i will répair and it is a two speed and double fan, one defrost et one cab heather.. thank's..
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Golden Jubilee
Golden Jubilee

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Location: Bothell, Washington

Post Thu Dec 01, 2016 12:55 pm

Re: cab heather connection

sounds like you have a replacement heater someone installed later on, an original one would not have two fans,
Gentle Men! you can't fight in here! This is the war room!

Golden Jubilee
Golden Jubilee

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Joined: Thu Nov 29, 2012 9:28 pm

Location: Lyman, IA

Post Thu Dec 01, 2016 1:08 pm

Re: cab heather connection

The barn door heater has two fans and one fan motor, one paddle wheel and one squirrel cage blower driven off a common shaft.

Golden Jubilee
Golden Jubilee

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Post Thu Dec 01, 2016 11:23 pm

Re: cab heather connection

Probably looks like this fan.

Image
1956 S-102 Short Bed BD240
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Golden Jubilee
Golden Jubilee

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Joined: Thu Nov 29, 2012 11:47 am

Location: Bothell, Washington

Post Fri Dec 02, 2016 11:10 am

Re: cab heather connection

I consider that one fan myself, I take two fans as 2 Separate fans, but everyone sees differently, so sure a KB heather has 2 fans in one.
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Golden Jubilee
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Post Fri Dec 02, 2016 11:33 am

Re: cab heather connection

http://www.hotrod.com/articles/1108clt- ... c-pickups/

Can something like the Vintage Air heater be hidden inside an original heater case?
yes. I don't know why you would. the Vintage Air unit is so small it can be almost out of sight. I installed the Vintage Air Mini-Space saver in my "R" The VA unit was not easily visible and the Mini space save is 4 times larger.
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Last edited by nikkinutshop on Mon Sep 02, 2019 2:29 pm, edited 3 times in total.
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