The AC/heat control unit keeps flashing when turned on sometimes it stops. Is it the head unit or the blend door actuator?
Jun 22, 2018 at 1:23 AM
HVAC control unit
1994 GMC SIERRA
KEVNLKING
- MEMBER
- 26 POSTS
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It is flashing is trying to tell you a code can you count the flashes?
Please let me know. Cheers, Ken
Please let me know. Cheers, Ken
Jun 23, 2018 at 6:53 AM
What does this mean?
Video (Click to enlarge)
Jun 24, 2018 at 8:23 AM
Thanks for the video! This usually means you have a mode actuator that is not working. Here is a guide to show you what you are in for when doing the job and the location of the actuator for your truck below:
https://www.2carpros.com/articles/replace-blend-door-motor
Check out the diagrams (below). Please let us know what happens.
Cheers, Ken
https://www.2carpros.com/articles/replace-blend-door-motor
Check out the diagrams (below). Please let us know what happens.
Cheers, Ken
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Jun 25, 2018 at 4:13 AM
Is this considered manual or automatic controls?
Jul 1, 2018 at 3:05 PM
It says they are the same for either. Have you tried to replace the actuator?
Jul 2, 2018 at 4:55 AM
Not yet, they were asking me if my unit is manual or automatic which I think is manual.
Image (Click to enlarge)
Jul 2, 2018 at 5:02 AM
Hello, I am Danny.
Your application/unit is manual. Hope that helps.
Your application/unit is manual. Hope that helps.
Jul 2, 2018 at 8:58 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.