2002 Chev truck AC....is hot

It seems that my temp switch is stuck on hot. i took out the ac fuse to see if i could get the hot vent air from baking me in the texas spring, but nada. it's still hot. i wanted to take off a panel to look behind but not sure which one to destroy first. those clips are nasty when you cant see how they work. should i start with the vaccum lines behind the ac panel or could this be another issue?
 
Cooking Texas Style

well man they done away with vaccum lines for the a/c a long time ago.. sounds like u might have an  hvac control module problem. they aren't very hard to replace. just a pop off the bezel around the radio and a few 7mm screws hold it in.