My air conditioner just started blowing hot air a few days ago. When I went to get my oil changed the guy told me i either needed to change my air filter or he saw some cracks in my belt said i might need that replaced. I just bought a brand new cooling fan system July of 05, and I changed the filter that day. Still hot air. I was told to buy Freon...but Im a female I dont know about any of these things......PLEASE HELP ME!!