My car had air that blew cold then slowly got warmer but not real warm. I took it to this place and they put some AC stuff in it and now it blows hot. They said I needed a comprssor. Does that sound right that i had cold air untill they put in the ac stuff R32 or whatever it is. Now it just blows air that is warm. If i drain some of the stuff do you think my air would be colder like befor they put the stuff in? Any input would help thanks.