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This Main PWB-K is the refrigerator's primary electronic control board that manages temperature, defrost, and user-interface functions so your appliance responds correctly to settings and cycles. Replacing a failed board restores normal control operation. What it does
This thermistor is a refrigerator temperature sensor that lets the control board monitor internal temperatures so the appliance maintains proper cooling. Replacing a faulty sensor restores accurate temperature readings and consistent operation. What it does: