Problems: 1. noticed water came from freezer but the fan was still running. 2. turned off power and turned on again, both fan and comp did not run. 3. checked schematic in the back, bank CN30 pin 4&5 have reading 38.8 ohms (F Def Sensor), other pins have K ohm readings. 4. checked comp starter and overload, they were fine (continuity). I ordered both defrost temperature sensor and defrost thermostat sensor but only replaced temperature sensor and it worked.
The video shows the temp sensor is on the refrigerator side but it has 2 cooling coils. My refrigerator has only one coil. However, there is another temp sensor on the refrigerator side and it locates in the styrofoam.