Vents not working?

[buick24]

Today my vents won't work it will blow out of the defrost but i can't change it to vent. It worked the other day and now it doesn't. Would it be the switch? and how expensive would they be. thanks

[buick24]

I have the controls that are manual as far as switching it from hot to cold. Could i swap in the digital display version for this car? Would it hook up with out any modifications and would it fit in the same space? thanks

[Loekee75]

No, the digital displays are for cars equipped with electronically controlled climate controls.

[buick24]

Problem fixed! A vaccum line came off. Don't know how that happened i must have accidently bumped it. Hooked it back up and it imediately worked again.