Paul S Kingston , WA July 21, 2018 Appliance: Samsung Refrigerator RF23HCEDTSR/AA Samsung Refrigerator Rf23hcedtsr/Aa / 0003: Loud fan noise due to build up of ice near condenser. How to replace Refrigerator Temperature Sensor. Replaced fan motor, temperature sensor and defrost thermostat. Note: I had to replace connector on new defrost thermostat. Connector on new part did not fit mating connector in refrigerator.. spliced in old connector for new one. 79 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours