I have a 2004 sonata and I'm trying to figure out if my switch, blower motor, or relay is the problem. When I turn switch on to 1 the a/c light comes on, the a/c kicks on and I can feel cold air coming thru my vents. When I turn switch on to 2, 3, or 4 no air comes out. I'm thinking it might be the switch. If any of the members here have had this problem and a fix please share this with me. No use replacing items when they are not bad. Thanks!