AC coming out of defrost vents only

Tiny
KENEZAR
  • MEMBER
  • 2004 CHEVROLET AVALANCHE
  • V8
  • 4WD
  • AUTOMATIC
  • 68,000 MILES
Yesterday, I replaced my battery now, my ac only blows out of my defrost vents why?
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Wednesday, September 1st, 2010 AT 4:42 PM

1 Reply

Tiny
HMAC300
  • EXPERT
First thing to do is pull the hvac fuse for 30 seconds then see if the heater module will reprogram itself. If not the mode actuator will need to be replaced here is a guide to show you how.

https://www.2carpros.com/articles/replace-blend-door-motor

Please let us know if you need anything else to get the problem fixed.

Cheers
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Friday, September 24th, 2010 AT 1:32 PM

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