My aircondition broke in my car. It has a setting of 1-5 being 1 is the lowest setting the air will blow and 5 being the highest it will blow. When I first got the car in highschool 5 wouldnt work, then 4 quit and now 3 quit working and I can barely even feel 2 but its working. What do you think this might be? And how much do you think it will take to repair it. Thanks