This part works with refrigerators. DA47-00244D Refrigerator Defrost Heater The DA47-00244D Refrigerator Defrost Heater heats the refrigerator’s cooling element to prevent it from freezing. It works with the defrost timer to heat the element at regular intervals. A worn or broken defrost element may cause the refrigerator’s cooling element to freeze. You might need to replace the defrost heater in your refrigerator if: Your refrigerator or freezer are too warm Your freezer will not defrost Frost has built up on the freezer coils