The Whirlpool W10211972 Switch is a replacement electrical component designed for compatible microwave ovens. It works by opening or closing an electrical circuit when the microwave door is engaged, helping the appliance recognize when it is safe to start or stop operation. This function supports normal cooking performance and contributes to the microwave’s safety system. Replacing a ... https://www.partsmelange.ca/whirlpool-w10211972-switch-for-microwave