2-wire. 2-pin connector plug.Defrost Temperature Control.SNR-012.
The image shows an SNR-012 Defrost Temperature Control, a specialized bimetal thermostat used to regulate the defrost cycle in “No Frost” refrigerators and freezers.
Core Function & Role
This component acts as a temperature-sensitive safety switch. Its primary job is to prevent the refrigerator from overheating during its automatic defrost cycle:
- Automatic Shut-off: It monitors the temperature of the evaporator coils. Once the ice has melted and the coils reach a safe temperature (typically around the bimetal disc inside snaps open, immediately cutting power to the defrost heater.
- Moisture Protection: The sensor is sealed within a transparent, moisture-proof plastic housing (often called a “bagged” thermostat) to protect the electrical contacts from the high-humidity environment of the freezer.
Technical Specifications
- Model Number: SNR-012 (N9 KSD WB-2).
- Type: 2-wire bimetal snap-action thermostat.
- Wiring: Features two brown-insulated lead wires terminated with a specialized red 2-pin connector plug.
- Mounting: It is typically clipped directly onto the evaporator tubing for accurate temperature sensing.
Compatibility & Replacement
This part is a common replacement for several major refrigerator brands, particularly those popular in the Middle East:
- Common Brands: Widely used as a replacement for Samsung (equivalent to part DA47-101), Electrolux, and Daewoo models.
- Fixes Common Issues: You likely need this part if your freezer has heavy frost buildup on the back panel or if the refrigerator section is not cooling because ice is blocking the internal airflow.
Description
Description
The image shows an SNR-012 Defrost Temperature Control, a specialized bimetal thermostat used to regulate the defrost cycle in “No Frost” refrigerators and freezers.
Core Function & Role
This component acts as a temperature-sensitive safety switch. Its primary job is to prevent the refrigerator from overheating during its automatic defrost cycle:
- Automatic Shut-off: It monitors the temperature of the evaporator coils. Once the ice has melted and the coils reach a safe temperature (typically around the bimetal disc inside snaps open, immediately cutting power to the defrost heater.
- Moisture Protection: The sensor is sealed within a transparent, moisture-proof plastic housing (often called a “bagged” thermostat) to protect the electrical contacts from the high-humidity environment of the freezer.
Technical Specifications
- Model Number: SNR-012 (N9 KSD WB-2).
- Type: 2-wire bimetal snap-action thermostat.
- Wiring: Features two brown-insulated lead wires terminated with a specialized red 2-pin connector plug.
- Mounting: It is typically clipped directly onto the evaporator tubing for accurate temperature sensing.
Compatibility & Replacement
This part is a common replacement for several major refrigerator brands, particularly those popular in the Middle East:
- Common Brands: Widely used as a replacement for Samsung (equivalent to part DA47-101), Electrolux, and Daewoo models.
- Fixes Common Issues: You likely need this part if your freezer has heavy frost buildup on the back panel or if the refrigerator section is not cooling because ice is blocking the internal airflow.
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