AC blower motor won't turn off

Asked by Apr 29, 2017 at 04:18 PM about the 1997 Buick LeSabre Limited Sedan FWD

Question type: Maintenance & Repair

7 Answers


Usually it is the blower motor resistor that is bad. But also could be the blower motor control switch. Just would have to do some testing to see which one.

Best Answer Mark helpful

This was a unique situation, the battery has run down twice in six weeks. Not being drive for awhile I also had 3 flat tires. While taking care of those the AUTO AC kicked on as temp was 90 but when I turned the key off the blower wouldn't stop. I finally had to disconnect the battery to stop it. I will be taking it to my mechanic for an estimate this week.Value is only approx $1200 for car, I suspect repairs will be more than that as their is another problem with the suspension which is why it hasn't been driven. Thanks for your answer.


Your welcome, and good luck with this...


GM cars with "automatic" a/c (where you set a temp and it holds that temp) have a blower module instead of the old resistor wires. It is common for the motor to run after the key is off when this unit goes bad. I am attaching a picture of the unit for a Riviera, your car should be similar.

1 of 1 people found this helpful.

Yea, in the parts stores I use that is what they are calling the resistor.

1 of 1 people found this helpful.

I have a 2001 buick lasabre the ac blower want cut off ,I put a new blower on and it's still do the same


Your problem is the fan controller and noted above. Take the new blower back and get a refund.

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