1998 Chevrolet S10 Q&A

1998 Chevrolet S10 Question: My ac doesnt work,its blowing HOT air all the time even when turned off.

a/c was working fine . turned it on one day and it was blowing hot air . Tried to make sure thermostat was turned to cool but still blowing hot . Also a/c is turned off and hot air is still blowing. -
Answer 1
poss heater control valve stuck open start there -
Answer 2
stuck heater control valve -