It can be a number of things. First check the fuses then make sure the blower motor is operative. If all checks ok, take it to a garage.
Let's not assume an a/c problem if the air is not blowing. This is usually due to a burnt out blower motor resistor. The various speeds of the blower are controlled by this resistor pack. It is cheap to replace and is usually located behind the heater/AC controls on the dash. This pack can fail in different ways to where some blower speed positions work and others don't. If there is no air blowing at all I would check it. Just ask for a blower motor resistor at a local parts store. They fail enough that its a stock item.
An air conditioner blows out heat
You have a vacuum source at the intake manifold that is possibly disconnected.
no but it may depend on the conditioner
I have exactly the same problem on my 2000 Still looking for the answer
Portable air conditioner will not blow cold air. What to do?
If system was opened to the atmosphere it will have to be evacuated prior to charging
My 2002 blows warm air when the rpm goes down significantly (when I don't clutch)
Blow It Out was created in 2002.
It's out of freon or refrigerant.
about 5 minutes