Whirlpool has agreed to a class action lawsuit settlement to resolve claims that certain Whirlpool, KitchenAid and Maytag refrigerators are defective and can develop frost build-up that prevents the appliance from cooling. The Whirlpool settlement benefits consumers who purchased a qualifying Whirlpool, KitchenAid or Maytag refrigerator. Consumers can check their appliance eligibility by checking the item's serial number on the settlement website. According to the Whirlpool refrigerator frost buildup class action lawsuit, certain Whirlpool, KitchenAid and Maytag refrigerators sold between 2012 and 2019 can suffer from excessive frost build-up on the evaporator due to a manufacturing defect. This frost allegedly prevents the refrigerator from properly cooling food and causes other damages. Whirlpool, KitchenAid and Maytag are appliance brands owned by the same parent company, Whirlpool Corp.