How often do we need to charge freon on our air condition unit?

Question

How often do we need to charge freon on our air condition unit?

Answer 1

only when it stops making things cold

could be a leak if it does

Answer 2

You don't have to charge it if there is no leak in the a/c system.  Your a/c must have a leak if you have to keep recharging freon.  You have to fix the leak if there is one.

Answer 3

wen the air dose not work