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Genuine Lg part.
Part Number 4781JR2004C replaces AP5203902, 1330961, AH3523602, EA3523602, PS3523602.
The Defrost Sensor is an OEM part for LG refrigerators. It detects when the evaporator coils require defrosting, allowing the defrost system to initiate and remove any built-up frost or ice. This sensor is typically located near the evaporator coils, monitoring their temperature and signaling when defrosting is necessary.
Causes of a faulty defrost sensor can range from physical damage or exposure to moisture, to electrical connectivity issues or general wear over an extended period.
Symptoms of a bad defrost sensor include:
This OEM LG part is also compatible with some Kenmore models.
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Lg 4781JR2004C Defrost Sensor OEM Part