Air Conditioner Heater problem

[BigB1227]

I have an AC problem. When I turn the AC on, no mattter what setting its on, face or feet everything comes out of the defrost. Also the dual climate control does not seem to work correctly, when both sides are set to cold, one side is cold and the other warm. Any suggestions? Thanks.

[YELLOWSS]

What year is your truck. If it is a NBS it is the relay box on the passenger side under the glove box. There are 3 bolt head screws that need to be removed, the new relay costs about 25$. Good luck!

[Savedbythrottle]

My truck did the same thing, I had to replace the control panel in the dash.