This genuine Samsung knob encoder (DC64-03648B) is vital for the smooth operation of your washing machine or dryer. If your appliance's knob is slipping, not turning properly, or feels loose, it might be time to replace this part. A malfunctioning knob encoder can affect your ability to select cycles or settings on your appliance. Keep your washing machine or dryer in optimal working condition by replacing the faulty knob. Before purchasing, verify your device's model number for compatibility.