Edward D Sewickley , PA June 12, 2015 Appliance: Samsung Refrigerator RF261BEAEWW/AA-0001 Samsung Refrigerator Rf261beaeww/Aa-0001 / : Broken defrost heater samsung rf261. How to replace Refrigerator Temperature Sensor. New defrost heater Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes