What type of refrigerant does my AC unit use. Last two times we used it it would ice over and once it thawed it would be fine. A friend of mine says it's probably low on Freon and he was asking me ...
Also make sure you are operating the fan in "auto" or "Hi" mode. Operating in "low" often results in ice up on the condenser and the unit will not cool. This is more frequent if the humidity is high. Barney