It might be that the A/C compressor isn't engaging when it is turned on? While the engine is running and while looking into the engine compartment at the compressor, have someone turn the A/C to the 'on' position and watch to see if the compressor actually engages or not. You ought to actually be able to hear an audible 'click,' and there will be a slight but noticeable change in the engine speed when it does. If not, then you might have a blown fuse or electric relay, or even a loose wire connection. It's also possible the that compressor may have failed.
bad condenser
Compressor not running?Heater control in heat position?
Could be many reasons but the most common would be low on freon due to a leak in the system.
There are a few reasons your AC might not get very cold even though the Freon is fine. You could have a leak in your line.
Blown fuse? Freon leak? Suggest you take it and have it checked to be sure.
There are a few reasons why a central air unit is not blowing cold air. The coils may be dirty, the unit may need freon, or the thermostat could be broken.
When the fridge is not cooling due to freon leak or freon restriction.
You coud be leaking freon. Or the level of freon in the car could be low or shot. Best thing to do is to go get it checked, and get it refilled. Freon is what makes the air cold. Not sure what type of freon your car requires. Some you have to have a license to use, others you can purchase at your local auto parts store. -Allen
Could be no Freon in it.
low on freon
The first thing to check is that the outside unit is running. That the compressor and the Fan is running. If they are running, then have the Freon pressure in the system checked. You may be low on coolant.
you may just be low on freon