3-wire. Defrost Temperature Control Wire.SNR-007
The image shows an SNR-007 Defrost Temperature Control Wire, a 3-wire bimetal defrost thermostat combined with a thermal fuse, commonly used in refrigerators to prevent ice buildup.
Core Function & Features
This component acts as a safety and regulation switch for the defrost system in “No Frost” refrigerators:
- Dual Protection: It features a bimetal disc that senses temperature to end the defrost cycle and an integrated thermal fuse that acts as a back-up safety to cut power if temperatures exceed a critical limit.
- Temperature Regulation: The bimetal typically opens the circuit at approximately
to turn off the defrost heater once the ice has melted.
- Design: The sensor is sealed within a pink-tinted moisture-proof plastic housing to protect it from the high-humidity environment of the evaporator coils.
- Wiring: It utilizes a 3-wire configuration (brown, orange, and red leads) terminated with a specialized white plastic connector plug.
Symptoms of Failure
A faulty thermostat or blown fuse will disrupt the defrost cycle, leading to:
- Heavy Frost Buildup: Ice accumulating on the back wall of the freezer or directly on the evaporator coils.
- Cooling Issues: The refrigerator or freezer section becoming too warm because air cannot circulate through the ice-blocked coils.
- Excessive Running: The compressor may run continuously as the unit struggles to reach the set temperature.
Compatibility & Supplier Details
This part is a common replacement for many major refrigerator brands, most notably LG, but it is also used in Elba, Westinghouse, and Kenmore models. It is functionally equivalent to OEM part number 6615JB2002A.
Description
Description
The image shows an SNR-007 Defrost Temperature Control Wire, a 3-wire bimetal defrost thermostat combined with a thermal fuse, commonly used in refrigerators to prevent ice buildup.
Core Function & Features
This component acts as a safety and regulation switch for the defrost system in “No Frost” refrigerators:
- Dual Protection: It features a bimetal disc that senses temperature to end the defrost cycle and an integrated thermal fuse that acts as a back-up safety to cut power if temperatures exceed a critical limit.
- Temperature Regulation: The bimetal typically opens the circuit at approximately
to turn off the defrost heater once the ice has melted.
- Design: The sensor is sealed within a pink-tinted moisture-proof plastic housing to protect it from the high-humidity environment of the evaporator coils.
- Wiring: It utilizes a 3-wire configuration (brown, orange, and red leads) terminated with a specialized white plastic connector plug.
Symptoms of Failure
A faulty thermostat or blown fuse will disrupt the defrost cycle, leading to:
- Heavy Frost Buildup: Ice accumulating on the back wall of the freezer or directly on the evaporator coils.
- Cooling Issues: The refrigerator or freezer section becoming too warm because air cannot circulate through the ice-blocked coils.
- Excessive Running: The compressor may run continuously as the unit struggles to reach the set temperature.
Compatibility & Supplier Details
This part is a common replacement for many major refrigerator brands, most notably LG, but it is also used in Elba, Westinghouse, and Kenmore models. It is functionally equivalent to OEM part number 6615JB2002A.
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