AC Not Working on 2005 Scion xB

I have a 2005 XB and when i turn on the AC it blows only regular air and not cold, so i checked the Compressor and it is not kicking in when turning on the Air please help me in any way u can...

Asked by for the 2005 Scion xB
it sounds like the freon level may be too low to engage the low pressure switch. you need a shop to do a leak check to see where your leak is located and give you a bid for repair.

1 more answer
I over charged my a/c with Freon. Remove some, and its normal, but my compressor is running even when a/c unit is off. Hot air is coming through. What should I do?