Steven D Laurel Hollow , NY October 13, 2018 Appliance: Samsung Refrigerator RF23HCEDBWW/AA-0000 Samsung Refrigerator Rf23hcedbww/Aa-0000 / : Refrigerator freezing up. How to replace Refrigerator Temperature Sensor. Replaced refrigerator and defrost thermostats. Easy to do following videos on you tube. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes