Heater Motor ?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

kenm78 · 09-21-2009, 05:29 PM

I have a 80 C10 with a/c when i turn the ignition to the run position I hear the fan running. The heater/air condition controls are in the off position. When I turn the key off naturally the fan stops. Do I have a bad blower resistor, or bad control, or is there something else??

asphaltburner · 09-21-2009, 11:10 PM

Yo! Chevy designed the fan to run on low, at anytime the key is on, for ventilation. I rigged mine with a toggle to turn it off. Nothing wrong with your truck.
Todd.

joe231 · 09-21-2009, 11:43 PM

I cut the yellow wire at the blower motor resistor on my '80 (I saw the tip on here).

no more low, but I don't need no stinking low.....the silence is golden

kenm78 · 09-23-2009, 05:17 PM

Thank you for the info... Next question. Why does my a/c compressor kick on when I have it on defrost mode???

joe231 · 09-23-2009, 05:35 PM

Most all do.
A/C takes the moisture out of the air, so it is benefical when you use the defroster, it also helps de-fog

kenm78 · 09-23-2009, 05:50 PM

Thanks for the information!!! Much appreciated.

09-21-2009, 05:29 PM	#1
kenm78 Broken Down Join Date: Dec 2006 Location: Choctaw, Oklahoma Posts: 1,267	Heater Motor ?? I have a 80 C10 with a/c when i turn the ignition to the run position I hear the fan running. The heater/air condition controls are in the off position. When I turn the key off naturally the fan stops. Do I have a bad blower resistor, or bad control, or is there something else?? __________________ kenm78 1982 Chevy 4X4 Project truck “It’s better to keep your mouth shut and let people wonder about your ignorance, than open your mouth and reveal all doubt”

09-21-2009, 11:10 PM	#2
asphaltburner Registered User Join Date: Jul 2008 Location: Ault, Colorado Posts: 862	Re: Heater Motor ?? Yo! Chevy designed the fan to run on low, at anytime the key is on, for ventilation. I rigged mine with a toggle to turn it off. Nothing wrong with your truck. Todd. __________________ '78 3/4 ton 4x4 custom "Todd-built" FRANKENTRUCK!

09-21-2009, 11:43 PM	#3
joe231 Registered User Join Date: Dec 2007 Location: Palmer, Alaska Posts: 13,821	Re: Heater Motor ?? I cut the yellow wire at the blower motor resistor on my '80 (I saw the tip on here). no more low, but I don't need no stinking low.....the silence is golden __________________ *CHEVY ONLY*

09-23-2009, 05:17 PM	#4
kenm78 Broken Down Join Date: Dec 2006 Location: Choctaw, Oklahoma Posts: 1,267	Re: Heater Motor ?? Thank you for the info... Next question. Why does my a/c compressor kick on when I have it on defrost mode??? __________________ kenm78 1982 Chevy 4X4 Project truck “It’s better to keep your mouth shut and let people wonder about your ignorance, than open your mouth and reveal all doubt”

09-23-2009, 05:35 PM	#5
joe231 Registered User Join Date: Dec 2007 Location: Palmer, Alaska Posts: 13,821	Re: Heater Motor ?? Most all do. A/C takes the moisture out of the air, so it is benefical when you use the defroster, it also helps de-fog __________________ *CHEVY ONLY*

09-23-2009, 05:50 PM	#6
kenm78 Broken Down Join Date: Dec 2006 Location: Choctaw, Oklahoma Posts: 1,267	Re: Heater Motor ?? Thanks for the information!!! Much appreciated. __________________ kenm78 1982 Chevy 4X4 Project truck “It’s better to keep your mouth shut and let people wonder about your ignorance, than open your mouth and reveal all doubt”

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