John S Staten Island , NY April 23, 2020 Appliance: Kenmore Side By Side Refrigerator 25357672791 Kenmore Refrigerator 25357672791: Refrigerator not cooling properly, freezer icing up. How to replace Defrost Heater (Evaporator). Replaced defrost heater after viewing diagnosis and repair videos on your site. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes