Gregory I Waco , KY March 05, 2021 Appliance: General Electric Refrigerator TFF24RBC Ge Refrigerator Tff24rbc: Defrost timer was making a lot of noise. How to replace Refrigerator Defrost Timer. I ordered a new defrost timer from AppliancePartsPros. Installed the new part and problem was solved. Its been a little over a week since I made the repair and so far it's working great. I received my part from AppliancePartsPros in a very reasonable time and would recommend them to others. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes