You may need to charge your a/c with coolant.
1. The possibility that the setting switch is for blower/ fan or for heating and not cooling in air conditioners that have both heating/cooling system.. 2.The chilling compartment /compression of...
The most common cause of an air conditioner not blowing air is a plugged filter. Be sure your filter is clean.
out of freon
1) The thermostat is set high 2) It needs coolant/fre.on