A/C/Heater Vents on 1994 Lincoln Mark VIII

A/C is working. Cold air coming from the defrost vent and floor but not through the A/C vents.

Asked by for the 1994 Lincoln Mark VIII
What you have is a air door actuator (inside the heater housing) that is not directing the air flow to the a/c vents. Have a shop check it out's not so easy to just DIY