2-wire.Defrost Temperature Control Wire : AFTC-SNR-006

The image shows an AFTC-SNR-006 Defrost Temperature Control Wire, a critical bimetal safety component for refrigeration systems. This specific model is a “bagged” bimetal thermostat designed to withstand the high-moisture environment of a freezer evaporator.
Core Function & Working Principle
This device acts as a temperature-sensitive switch that regulates the defrost cycle to prevent your refrigerator from overheating:
  • Defrost Initiation: When the evaporator coils reach a sufficiently low temperature, the bimetal disc inside closes, allowing current to flow to the defrost heater.
  • Heat Protection: Once the frost has melted and the coils reach a safe upper limit (typically around to or to the bimetal snaps open, immediately cutting power to the heater.
Technical Specifications
  • Model Number: AFTC-SNR-006.
  • Type: 2-wire bimetal thermostat (normally open).
  • Wiring: Features long, orange-insulated lead wires terminated with bullet connectors for direct plug-in installation.
  • Operating Voltage: Typically rated for AC 250V / 10A.
  • Design: The sensor is sealed in a transparent plastic housing to prevent moisture ingress, which is a common cause of failure in standard thermostats.
Common Issues Fixed
Replacing this part typically resolves the following refrigerator symptoms:
  • Freezer not defrosting: Excessive ice buildup on the back wall or evaporator coils.
  • Fridge too warm: Ice buildup blocks airflow from the freezer to the refrigerator compartment.
  • Constant running: The compressor runs continuously because the unit cannot maintain the correct temperature.📞 Contact & Procurement DetailsTo secure pricing, check stock availability, or coordinate bulk fulfillment across Saudi Arabia, contact the Ayub First Trading Company distribution offices directly:
    • Primary Hotline (Call/WhatsApp): +966 56 004 2170
    • Email Inquiries: ayubfirsttrading@gmail.com
    • Corporate Web Platform: ayubfirsttrading.com
    • Regional Warehouses: Showrooms fully stocked in Riyadh (Al Jabrah, Batha Road), Jeddah, Dammam, and Al Khobar (20th Street, Hail Road).
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