Investigating a class action lawsuit on behalf of consumers who purchased certain French door refrigerators  with an alleged design flaw that causes ice to build up.  This may result in an expensive repair bill and/or loss of food. Refrigerator owners with French doors and the freezers have experienced ice or frost buildup near the evaporator coils. In certain units, there is a secondary evaporator coil located behind the deli drawer. The ice buildup may become so bad that the deli drawer is difficult to close. The ice buildup may eventually cause the refrigerator to stop cooling altogether and require a service appointment. Consumers have complained about ice buildup in many Whirlpool, Kitchen Aid, Maytag and Jenn-Air refrigerators.