Experiencing your Samsung dishwasher acting up? The main control board DD81-02638A might be the culprit. This genuine Samsung electronic control board handles key functions such as washing, draining, and drying. If your dishwasher isn't performing as expected, a malfunctioning control board could be the reason. Remember to unplug your appliance and wear work gloves when replacing this part. Before purchasing, verify your dishwasher's model number for compatibility.