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AC/heater blower not working

Tiny
BOBBY BENWAY
  • MEMBER
  • 2003 CHEVROLET SUBURBAN
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
I have replaced all fuses and resistor pack along with replacing climate control. I am not getting any power to the resistor pack plug is there a breaker between the climate control and the resistor pack that could have gone bad? I am at a loss and can't figure what else to do.
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Tuesday, June 9th, 2020 AT 6:27 PM

5 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

I attached a wiring diagram for you of the blower system. The red wire comes from the fuse block for the resistor. I circled the fuse for you to test for power.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

https://www.2carpros.com/articles/how-to-check-wiring

Let me know the results.

Roy
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Wednesday, June 10th, 2020 AT 2:55 AM
Tiny
BOBBY BENWAY
  • MEMBER
  • 3 POSTS
Fuses were good, found a break in red wire.
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Wednesday, June 10th, 2020 AT 11:57 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good find.

Is it working now?

Roy
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Wednesday, June 10th, 2020 AT 12:11 PM
Tiny
BOBBY BENWAY
  • MEMBER
  • 3 POSTS
Re-spliced red wire and re-synced blower doors. Works great, thank you.
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Wednesday, June 10th, 2020 AT 1:54 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

Always glad to help.

Roy
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Wednesday, June 10th, 2020 AT 2:06 PM

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