My ac unit has stopped blowing cold air. The air coming through is warm and it feels as if the flow is not as strong. I had this problem about two years ago except at that time my fan would run on the condenser even when turned off. It turns out the wiring on the condenser was loose and rubbing. So I tested this out by turning the unit of and checking the fan, it now turns off. While it runs I have noticed that the condenser will make a quick buzz sound about every five minutes.

Filters and A coil clean? Could need Freon. Has anyone tested the Freon level?

I have changed the filter and while I was trying to clean the condenser, I noticed that the compressor isn't kicking over it is what I believe the buzzing sound to be.

Could be the contactor. Could be the thermal overload switch. I would have a pro look at it.