my climate control will not route the air/heat anywhere besides the face vents. it wont go to the floor nor will it go to the defrost/ windshield. I can controll the speed of the air(1,2,3,4) but if i hit any of the buttons such as: floor,face,windshield,both face and floor, or both face and windshield ..etc... it will not route the air anywhere besides the face vents. This is a problem because I cant drive in the winter unless I drive with my windows down. Does anyone know or have any ideas on what could be wrong?