Blower doesn't change speeds, always on low.

[GM_Chris]

 

Need Help badly...

2013 GMC SIERRA 2500HD.

Blower doesn't change speeds no matter dial setting. Speed is like its on low. Blower seems to almost stop when selecting max ac recirculation button. Please help.

Thanks in advance.

Edited August 26, 2022 by GM_Chris
Add content

[Delgado1300]

I had the same issue with my 2019 Silverado 1500 last week. Turns out that my ac blower and blower control module burned out. If your blower is still blowing, it may just be an issue with the module, which controls the fan speed setting. I had to order the parts directly from the dealer. You can probably find them online, also. It seems like an easy fix - chevy wants to charge me almost $900 for the job - but I'm having an issue disconnecting the harness from the module. It has a locking mechanism that I'm not familiar with, and don't want to break it. If anyone has any insight on this, it would be appreciated. Hope this helps. 

 

Steve