Doug B Austin , TX September 30, 2018 Appliance: General Electric Refrigerator DSS25KGRBBB Ge Refrigerator Dss25kgrbbb: Freezer wasn't defrosting. How to replace Defrost Heater & Bracket Assembly (Evaporator). I replaced the heater element, the temperature sensor, and the thermostat in the freezer compartment. Got the parts in less than 18 hours! 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours