defroster not working properly?

2015 CHEVROLET EQUINOX

26,000 MILES • 6 CYL • 2WD • AUTOMATIC

RECTORY

MEMBER
1 POST

The fan blows air cannot control the flow of air when selecting floor dash vents or defrost. no flow is changed, it seems to be in defrost mode but not the speed that is achieved when hitting the defrost mode.

Nov 23, 2022 at 5:17 AM

JACOBANDNICKOLAS

✓ASE Certified Mechanic
110,193 POSTS

Hi,

If you have lost control of the airflow direction, chances are the mode door actuator has failed.

A mode door actuator is what determines the airflow direction based on your request. Take a look through this link. You may find it helpful.

https://www.2carpros.com/articles/air-vents-stay-in-the-defrost-position

If you look below, I attached the directions for replacing the actuator on your vehicle. Do me a favor. Remove the actuator and while it is still connected, see if it responds when you change airflow direction. If there is no response, chances are it is the actuator.

Let me know if this helps or if you have other questions.

Take care and have a great Thanksgiving.

Joe

See pics below. Note, the pics below are specific to a manual climate control system. If you have automatic climate control, let me know.

Images (Click to enlarge)

Professional Diagram for 2CarPros Members
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Nov 23, 2022 at 11:00 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.