BLOWER NOT WORKING

  • Tiny
  • nepdaboss1991
  • 1996 Cadillac Deville
  • 110,250 miles

Blower motor not coming on at all. Ran test light. I have power at red wire with light grounded at (-) battery. I have power at black wire with light grounded at (+) battery. No power at gray wire with light grounded at (-) battery. I ran these test with car running hvac set at 75 degrees and had someone adjust fan speed as I was testing. Then ran test with vehicle off and got the same results. Previous owner replaced blower motor. Ive checked all fuses and I know theres not relay for the blower just and air conditioning and heating programmer. Should I replace blower motor again? Or should I replace programmer or dash panel switch?

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Thursday, April 11th, 2013 AT 12:03 PM

7 Replies

  • Tiny
  • Docfixit
  • Expert
  • 18,991 posts

Replace HVAC controller it is standard to replce it when blower is replaced. Blower AMP draw goes up and damages controller. Blower speed controled via Gray wire from controler

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Saturday, April 13th, 2013 AT 1:06 PM
  • Tiny
  • nepdaboss1991
  • Member

And how do I access that? I'm thinking its behind the glove box.

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Sunday, April 14th, 2013 AT 6:58 PM
  • Tiny
  • Docfixit
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  • 18,991 posts

Yes behind glove box

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Wednesday, April 17th, 2013 AT 9:13 AM
  • Tiny
  • nepdaboss1991
  • Member

Any special tools or procedures to changing this

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Wednesday, April 17th, 2013 AT 9:22 AM
  • Tiny
  • Docfixit
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  • 18,991 posts

No regular tools

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Wednesday, April 17th, 2013 AT 11:30 AM
  • Tiny
  • nepdaboss1991
  • Member

I have the hvac controller. Could you help with some steps to install?

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Wednesday, May 22nd, 2013 AT 1:52 PM
  • Tiny
  • Docfixit
  • Expert
  • 18,991 posts

Sorry been away what happened?

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Tuesday, June 4th, 2013 AT 8:48 AM

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