4-wire. SL-098A W-P. Defrost Temperature Control. SNR-017

This device is an SNR-017. Defrost Temperature Control, a 4-wire bimetal thermostat assembly used in frost-free refrigerators. is typically used as a replacement part for Samsung and other compatible refrigeration brands.
Technical Specifications…
  • Part Number: SNR-017 / SL-098A W-P.
  • Voltage/Current Rating: Standard rating is AC 250V / 10A.
  • Operating Temperature: Designed to open (cut power) at a specific setpoint, usually around 10°C to 15°C, to end the defrost cycle once the ice has melted.
  • Configuration: 4-Wire Assembly featuring a white plastic connector plug. It combines a bimetal thermostat and a thermal fuse within a single waterproof sealed sleeve.
  • Safety Fuse: Includes an internal thermal fuse rated at 72°C (161.6°F) to permanently cut power if the defrost heater fails to shut off, preventing damage to the appliance.
Core Function & Features
This component is a critical safety and regulatory part of the automatic defrost system:
  1. Defrost Termination: Mounted on the evaporator coil, the bimetal switch senses when the coil has warmed up enough to be clear of frost. It then “pops” open, shutting off the defrost heater.
  2. Overheat Protection: The integrated thermal fuse acts as a fail-safe. If the bimetal switch malfunctions and stays closed, the fuse will blow to prevent the refrigerator’s plastic interior from melting.
  3. Waterproof Design: The components are encased in a heavy-duty, moisture-proof plastic sleeve to withstand the constant condensation and ice buildup inside the freezer.
Common Failure Symptoms
If this part is faulty, your refrigerator may experience:
  • Thick Frost/Ice Build-up: On the back panel of the freezer, which eventually blocks airflow.
  • Warm Fridge Section: While the freezer remains cold, the fresh food section stays warm because air cannot circulate through the iced-up evaporator coils.
  • Continuous Compressor Operation: The unit may run constantly to compensate for the lack of cooling efficiency.
Description

Reviews

There are no reviews yet.

Be the first to review “4-wire. SL-098A W-P. Defrost Temperature Control. SNR-017”

Your email address will not be published. Required fields are marked *