Defrost does not work.

["350Vortec"]

Along with every other setting in my hvac controller. The knob that controls where the air is being blow to does not work. Or i should say it does but something else is not directing it properly to where it needs to be. Meaning im only getting air out of my vents directly on front of me. No defrost or foot blowers...Any ideas guys?

 

[clean454]

so air only comes out the front vents? can u control the heat level and cold? and can u control the speed?? if not im guessing that ur actual controller is bad

 

[hapyspaz]

If all the other controls are working, you may be looking at a blend door, not too expensive a part, but a massive expense to have installed.