1998 Blazers only blows hot air

I just bought a blazer and it only blows hot air. Even if I turn on the A/C it is still hot. It has computerized climate control. Can anyone help?

You may try something. The computer for the automatic temperature control system is calibrated. If the computer had an interruption, it could allow the temperature door to become stuck.

1. Make sure the ignition switch is Off.
2. Remove the RDO BATT fuse for 10 seconds. I believe this to be Fuse # 19, it is a 10 AMP fuse. After 10 seconds, replace the fuse.
3. Turn the ignition switch to ON and leave it there for 40 seconds for the computer to initialize.

Then check to see if that works. It is a long shot, but a simple try. If it does not work, I will look for more help, but be forewarned that this system is a bit complex.

I'll try it. thanks