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Air conditioner problem

Tiny
WOKEMEL85
  • MEMBER
  • 2003 BUICK CENTURY
  • 130,000 MILES
My car air conditioner runs on high with the car turned off and keys out of ignition. From research I found it is likely the blower motor or blower motor resistor. I was going to take out a fuse to the high blower to stop it temporarily, but that same fuse controls my brake lights so I cannot. So I have searched online for videos and pictures and apparently my blower motor is supposed to be under my glove department, but what is under there does not at all match any of the videos I saw. Where is my blower motor and how can I unplug it to stop it from running? I cannot afford to replace it right now, I just need to unplug it so it stops killing my car battery. I need the transportation more than I need the air conditioner right now.
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Tuesday, July 5th, 2016 AT 5:23 PM

8 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
Does your car have automatic temperature control?
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Tuesday, July 5th, 2016 AT 5:47 PM
Tiny
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  • 5 POSTS
No
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Sunday, July 17th, 2016 AT 7:31 AM
Tiny
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I just need to unplug the blower motor.
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Sunday, July 17th, 2016 AT 7:32 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
The problem is the speed control itself, when they short out the blower motor stays on high. Here is a diagram.

Here is a diagram with the locations of each
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Sunday, July 17th, 2016 AT 8:47 AM
Tiny
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  • MECHANIC
  • 20,761 POSTS
He said he does not have auto temp control. There shouldn't be a speed controller, just a resister.
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Sunday, July 17th, 2016 AT 10:06 AM
Tiny
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  • MEMBER
  • 5 POSTS
I've taken out the fuse to the high blower. Then we tried jumping the car. Battery is completely dead now. I mean dead dead. I knew that the high blower staying on all night was gonna drain the battery and I'd need a jump start, but didn't realize it would completely kill the battery dead where a jumpstart didn't even work.
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Sunday, July 17th, 2016 AT 2:39 PM
Tiny
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Yep, my blower motor has a resistor. I did try to unplug that but it's really hard to get at, so I just took out fuse to the high blower.
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Sunday, July 17th, 2016 AT 2:41 PM
Tiny
WRENCHTECH
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The resister is likely the problem with the blower as the relay is incorporated into it. As for the battery, yes, running it that low can ruin it. Try giving it a long slow charge. Do not use jumper cables as that can ruin your alternator.
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Sunday, July 17th, 2016 AT 2:47 PM

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