Ac problem

Have a 2003 alero and was wondering if any one know why the recirculation button for ac does not work....I press it and the blower stays at same speed when before it would blow the air stronger....any ideas would help..thx!

Have you checked the actuator for the recirc door?

no but every time i press button i can hear door being shut..

If it was shutting, the air flow would change.....you will have to physical see it operate...