Heater blower not blowing on LOW & MED
October 17th, 2013, 6:49 PM
#1
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Heater blower not blowing on LOW & MED
I have an 86 chevy k20 that I recently purchased. I'm currently finding all the bugs and working on fixing them. One that I have is that the ac/heater fan does not blow on low and medium. Yet it blows just fine on high. I THOUGHT it would be the resistor. But other Googling I did makes me think replacing the resistor will only fix the issue if it was the HIGH blowing wasn't working.
help?
help?
October 18th, 2013, 4:21 AM
#2
Go back to your original thinking.
High speed is a totally separate circuit incorporating the relay. Look at the fuse, switch and resistor.
Allan
High speed is a totally separate circuit incorporating the relay. Look at the fuse, switch and resistor.
Allan
Last edited by Allan In NE; October 18th, 2013 at 6:58 AM.
December 10th, 2016, 1:56 PM
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I have a 2004 Trailblazer that this summer, the high(5) speed stopped working in my AC vents. Now it's winter and none of the speeds work to blow the warm air. I can feel the warm air at the vent, but it won't blow anymore. Also, the lower heat/AC vents haven't worked in quite some time. What could be the problem?
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