What's wrong with my A/C?

The car was on and the air condition switch was on high. It's was the can that has the spray bottle look. I don't remember if the can was cold but I tried another can and it didn't work. I'm assuming the compressor was working normally bc of the men that was at the part store helping.

the clutch has to be spinning on the compressor,is it spinning?when you pull the handle back on the can,and compressor is taking freon,the can will frost over when freon is leaving the can.did you remove the little tab below the nozzle,so freon can flow from the can?

I don't know about the compressor but I know I used the freon correctly.

ok.the can has a guage on it.was the guage moving at all?also did you remove the tab,by unscrewing the top,then screw it back on.sometimes you have to shake the can,turn it sideways,to get it to go in.i saw a guy the other day,using a can of a/c pro in the tall black can with the trigger on it.at first his compressor clutch was not spinning,then it started cycling on/off/on/off on/off every 15-20 seconds.i ask him was the can real cold,and it was not.told him to shake the can and turn sideways,and it finally started taking the freon.the clutch cycled less and less,finally staying on,and can was iced over.that means its taking the freon.took him 25 minutes to do this.i checked inside his car,it was blowing 45 degree air out vents.good luck.post findings.

It's not the can. I have tried more than one. It's the car. I don't know why it's not taking the freon.