heater/Ac selector switch blows air in wrong areas
 

In my 2000 chevy blazer when I select to put air to the floorboards the air comes out of the defroster instead. Has anyone had similar problems with their selector switch. I"d like to get some kind of heads up before taking it apart.

Many people have had that problem. It's very common. Search for HVAC in this part of the Forum and you're likely to find plenty of information.

Good luck!