Your AC is not working.
Common causes are:
lack of freon
broken belt
compressor failed
The air of your Chevy trailblazer 2004 blow out of the front vents when the air conditioner is on because the air condition is faulty and it needs repair.
Your A/C needs recharged.
An air conditioner blows out heat
It might need to have the Freon re-charged.
no but it may depend on the conditioner
computer fuse blow out when turn ighition on what is the cause
I have a 2003 X type Jaguar and the a/c does not come on when it's 45 degrees outside. Why?
Portable air conditioner will not blow cold air. What to do?
I have a 2003 astro with the same problem, it was the blower motor
Not likely
if your A/C light is flashing where you adjust temperature and its not blowing cold, try disconnecting the batter for a few minutes, and it will sometimes reset the programming for the air and stop it from flashing, and blow cold, it worked on my 1991 Chevy 2500
about 5 minutes