Defrosting resistor, defrosting the refrigerator how to check the defrost resistance to see if it is alive or dead. If the refrigerator does not make ice or is not cold, one of the causes may be a failure of the defrost unit, resulting in snow sticking to the unit and not cooling.
In addition, you need to check the sensor, also known as hot clam, cold clam, to see if the operating status is good. These clams function like thermal switches. When defrosting causes the temperature to rise, so when the threshold is reached, it will disconnect the defrost resistor from the source, ending the defrost process. When the temperature drops it closes again. For some reason this process is not correct, when the temperature drops it does not close so the defrost resistor is not energized to heat the burner.
This is a common cause in case the cabinet does not make ice