WHEN THE FAN SWITCH WAS TURNED TO THE FAST POSITION AND THE A/C WAS TURNED ON THE CONSUMER BEGAN TO SMELL SOMETHING BURNING. AFTER A FEW SECONDS ALOT OF SMOKE CAME FROM UNDER THE DASH AND A/C AREA. THE CONSUMER REMOVED THE KNOB AND SAW FLAMES. THE CONSUMER TURNED OFF THE ENTIRE SYSTEM AND REMOVED THE CABLE. NO DAMAGE WAS REPORTED. *AK *NM