[mdtpr]

My 02 trailblazer acts up when I set the heat control halfway between hot and cold and it will only blow hot air. I have to shut it off set it to cold so it will blow cold air again. So I either leave it on hot then switch to cold and vise versa if it is a semi warm day, otherwise I will roast to death. Also, the passengers side climate control seems to control both sides for hot and cold???