Lastly, it is important to take into consideration whether your current unit is using R-22 Freon as a refrigerant. R-22 Refrigerant has been recently discontinued in the U.S. and Overland Park, KS area, so if you are experiencing frequent, costly repairs, and your unit runs on R-22, you may as well replace the unit and install a new one altogether as R-22 is becoming less and less available.