Blower Motor Issues.. Can't find problem - Kia Forum
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#1 (permalink) Old 12-09-2011, 11:18 AM
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Default Blower Motor Issues.. Can't find problem

I drive a 2001 Sephia, manual trans, with 130,000 miles. Lately I've been having issues with my heat/ac working. When I try to turn it on, no air comes out at all! It doesn't work on any speed I put it at, the horsepower is decreased as if it were working... but the only air that comes out of the vents is the air I can SLIGHTLY get while the car is moving. Yesterday, I checked all of my fuses, they worked. Wasn't sure how to check the BLOWER relay, so I switched it with another relay and the problem still occured. Then I took both the blower motor AND the resistor out and hooked the motor to a battery to see if it was working and it was. Wasn't sure how to test the resistor so I tested it with a voltometer and picked up a reading. After putting EVERYTHING back in, I checked the fuses one last time and noticed that I had a 30amp mini fuse in my blower motor section. Owner's Manual says it should be 25. I just kept it in becuase I couldn't find a 25.. It worked fine for the rest of the night. The next morning, It worked when I started my car (I believe it was on speed 2) and I turned it off because it was cold... then later down the road tried again and no air came out at all again. ALL THAT WORK FOR NOTHING?! Any ideas?
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#2 (permalink) Old 12-09-2011, 11:39 AM
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I would replace the resistor. How did the connectors/harness look (the ones going to the motor and res.)?
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#3 (permalink) Old 12-09-2011, 06:45 PM
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The clips looked a little brown. Like they had been slightly toasted..
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#4 (permalink) Old 12-09-2011, 06:49 PM
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Originally Posted by cobra259 View Post
I would replace the resistor. How did the connectors/harness look (the ones going to the motor and res.)?
my guess would be a intermittent switch as the contacts wear with age and use and do you have power to the switch and your connecter if it looks toasted it could be bad also.

Last edited by jetech00001; 12-09-2011 at 06:55 PM.
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#5 (permalink) Old 12-15-2011, 03:39 PM
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For what it's worth, I had an intermittent problem with the blower motor. After some time it stopped working altogether. A new motor did not fix the problem. Eventually it was traced to the fuse box. The wires there were charred. I have heard of others having similar problems where the blower motor wires connect to the fuse box.
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