This adaptive defrost control board kit (part number 5303918476) is for refrigerators. Adaptive defrost control board kit 5303918476 manages the defrost cycle in the refrigerator as the evaporator temperature rises and falls. The kit may include multiple parts; refer to your parts diagram for a complete list of parts included. Safely store any food that could deteriorate while the power is off. Unplug the refrigerator before installing this part. Wear work gloves to protect your hands.