This essential component is perfectly compatible with a range of Whirlpool refrigerators, making it a versatile addition to your appliance maintenance toolkit.
Reading google links suggested the defrost timer, the defrost heater or the defrost thermostat. My timer has a knob to turn, timer is good. Defrost heater? Bought one and I'm clueless how to install it. So, it's yet another thermostat in an appliance. (The cycling thermostat failed in my dryer.)
Easy fix. The hard part was mopping up melted ice and getting the ice maker plug out of the back wall.
My refrigerator is working like brand new.