SHOULD YOUR HEATAC BLOWER MOTOR RUN ALL THE TIME...

1979 GMC

Tiny

richfile

January, 24, 2013 AT 12:54 AM

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

5 Answers

Tiny

ASEMaster6371

January, 24, 2013 AT 1:35 AM

Yes, it was called astro ventilation at that time

roy

Tiny

richfile

January, 24, 2013 AT 3:33 AM

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?

Tiny

ASEMaster6371

January, 24, 2013 AT 3:36 AM

You could put a simple on/off switch for the power to the motor.

Roy

Tiny

richfile

January, 24, 2013 AT 3:21 PM

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.

Tiny

ASEMaster6371

January, 24, 2013 AT 7:19 PM

Needs constant power. A simple switch for the blower would be the easiest solution.

Roy

Please login or register to post a reply.

Change Your Blower Fan Motor Like a Pro