Should your heat/A/C blower motor run all the.

Tiny
RICHFILE
  • 1979 GMC
  • 80,000 MILES

Should your heat/a/c blower motor run all the time on low with it not turned on to cool or heat?

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Thursday, January 24th, 2013 AT 12:54 AM

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Tiny
ASEMASTER6371
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Yes, it was called astro ventilation at that time

roy

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Thursday, January 24th, 2013 AT 1:35 AM
Tiny
RICHFILE
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Is there a way of running the power for it it through a relay to where it will only come on when your'e calling for heat, cool, or vent? Or maybe modifying the relay that controls it now?

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Thursday, January 24th, 2013 AT 3:33 AM
Tiny
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You could put a simple on/off switch for the power to the motor.

Roy

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Thursday, January 24th, 2013 AT 3:36 AM
Tiny
RICHFILE
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Well yea, but I don't want to be drilling holes in my dash or somewhere to add a switch that doesn't look like O.E. I guess what I was looking for is can the power that feeds the relay now be moved to a power sourse that would only run when the unit is calling for heat/cool/ or vent, or does that relay have to have constant power for other reasons? Or, can I add a relay to break the purple wire feeding the motor, but I'm not sure how to control the coil fo the new relay.

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Thursday, January 24th, 2013 AT 3:21 PM
Tiny
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Needs constant power. A simple switch for the blower would be the easiest solution.

Roy

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Thursday, January 24th, 2013 AT 7:19 PM

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