Climate control, all defrost all the time.

[GTOger]

I've been through the service manual and cannot seem to find the right way to diagnose this. Wonder if I could get some guru help.

The climate control box lights up, appears to function fine. Temp set will adjust temp up and down, fan speed works, can press the recirc and various air position buttons and the green lights come on. However, no matter what, all the air is directed out of the defrost.

So I'm thinking the electronics are good, maybe something mechanical? Hoping for pointers in the right direction before I cry uncle and pay someone. Ugh.

Summertime in Texas, one needs all the cold air through the dash vents one can get!