Jump to content
  • 0

New HVAC control unit


jwalker

Question

I installed a new dual climate control unit today on my 2004 Silverado. Everything works perfect except nothing happens when you press the recirculation button. The light comes on but it neither turns on nor off, the air comes out the same speed, unlike the original unit.

 

Do I need to have this programmed / flashed to work with my truck or is it a bad unit?

Link to comment
Share on other sites

5 answers to this question

Recommended Posts

There is a relearn procedure that must be done, I think. I went through this with my truck a few years ago. I think you set the airflow selector to the vent setting. Disconnect the battery let it sit for a few minutes, re-connect the battery then turn the key to the on position, not start and let it cycle for about 2-3 minutes.

 

My HVAC system lost its mind a few years ago and I had to do this process, I think I did it 2 or 3 times and it cleared it up.

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.



×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.