W10225581 Refrigerator Bimetal Defrost Thermostat for Whirlpool Kenmore - 4 Pack 3977768 resulting in a humming sound

resulting in a humming sound and a potential burned-out belt

DG64-00473B

Universal 3-Screw Mount: Engineered with a standard 3-hole flange pattern

EAP12717897

W10225581 Refrigerator Bimetal Defrost Thermostat for Whirlpool Kenmore - 4 Pack 3977768 resulting in a humming soundW10225581 Refrigerator Bimetal Defrost Thermostat Key Features Monitors evaporator temperature to regulate the defrost cycle. Protects the evaporator from overheating. Clip on design for mounting directly to refrigerator tubing. Replaces Cross Reference Part Numbers WPW10225581 AP6017375 PS11750673 2188824 2321799 2319914 2149849 2266067 W10260437 WPW10225581VP Compatibility & Fitment Fits a wide range of refrigerator models from major manufacturers.