When I turn my a/c unit on I can here the fan turn on, but there is no cold air coming from it. The longer I leave the a/c on the hotter the house get. What do I need to do. Do I need to get it charged. The heating side of the unit is gas operated that's what I was told and the a/c side is electrical how true is that I need help!

First thing to do is turn to ac, then go outside and see if the outdoor unit is running at all. Then we can go from there.