I get heat from floor dashboard and defroster all at same time

Tiny
CLINTBASS_2003
  • MEMBER
  • 2006 CHEVROLET TRAILBLAZER
  • 125,000 MILES
When I turn my engine and then turn the fan on for defroster, I get a clicking sound. I turn the control knob to floor slowly, wait a minute or two, then back to defrost. Times it works first time, others after a couple tries.
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Wednesday, November 13th, 2019 AT 5:32 PM

1 Reply

Tiny
SCGRANTURISMO
  • EXPERT
Hello,

This could be a problem with your mode door actuator, which controls the door which distributes the air to proper vents. In the diagrams down below I have included the instructions from the vehicle manufacturer for the removal and installation of the mode door actuator for your vehicle[Manual HVAC System]. Please go through this guide and get back to us with how everything turns out.

Thanks,
Alex
2CarPros
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Wednesday, November 13th, 2019 AT 6:48 PM

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