TL* THE CONTACT OWNS A 2008 HYUNDAI TUCSON. THE CONTACT STATED THAT THE SPEED CONTROL KNOB FOR THE AIR BLOWER BECAME HARD TO TURN AND REQUIRED EXCESSIVE FORCE. THE CONTACT DISCOVERED THAT THE CONNECTOR FOR THE BLOWER CONTROL WAS SLIGHTLY MELTED. THE CONTACT REPLACED THE BLOWER CONTROL MODULE AND NOTICED THAT THE GROUND WIRE MELTED INSULATION. THE CONTACT MENTIONED THAT OVERHEATING OCCURRED IN SPEED FOUR. THE VEHICLE WAS TAKEN TO DEALER. HOWEVER, THE FAILURE WAS UNABLE TO BE DIAGNOSED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 70,000.