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why my heat/air fan only on high?

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Offline zuk1988

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Re: why my heat/air fan only on high?
« Reply #8 on: June 09, 2011, 07:32:55 AM »
I had the slower speeds stop working, re-soldered the wires
onto the switch and it works again

Wild
That happened to my switch too.
88 Samurai,1.6 16 valve,D44 front Ford 9" rear,33 swamper TSL's

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Offline mattstracker

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Re: why my heat/air fan only on high?
« Reply #7 on: June 08, 2011, 09:23:13 PM »
got it working took it apart sprayed it with electric cleaner. works great on all speeds.

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Offline wildgoody

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Re: why my heat/air fan only on high?
« Reply #6 on: May 16, 2011, 09:42:57 PM »
Those are resistor wires, and the air blows over them
to keep them cooled off, otherwise they would turn
red from the heat
Real Trucks Are Built, Not Bought,
And Chrome Don't Get Ya Home.  

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Offline mattstracker

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Re: why my heat/air fan only on high?
« Reply #5 on: May 16, 2011, 09:36:02 PM »
where is the little resistor at on the blower motor?

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Offline wildgoody

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Re: why my heat/air fan only on high?
« Reply #4 on: May 16, 2011, 09:15:03 PM »
I had the slower speeds stop working, re-soldered the wires
onto the switch and it works again

Wild
Real Trucks Are Built, Not Bought,
And Chrome Don't Get Ya Home.  

An armed man is a citizen. An unarmed man is a subject.

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Online fordem

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Re: why my heat/air fan only on high?
« Reply #3 on: May 16, 2011, 05:34:45 PM »
The fan speed is controlled by a resistor and a switch - either one of them (or the wiring) is your problem.
'98 SQ420 Grand Vitara
'05 JB420 Grand Vitara

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Offline smife

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Re: why my heat/air fan only on high?
« Reply #2 on: May 16, 2011, 04:45:36 PM »
The little resistor on your blower motor is bad

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Offline mattstracker

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why my heat/air fan only on high?
« Reply #1 on: May 16, 2011, 04:07:54 PM »
I have a 96 Geo Tracker my blower motor only works on high. Why?