Low air flow through vents?

This usually happens when the air mix door goes out, is the lower motor working?

Here is a guide that can help as well:

https://www.2carpros.com/articles/low-or-no-air-flow-from-vents

Check out the images below to help you change out the air mix blend door actuator. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.