The Switch is an OEM part for Whirlpool microwaves. This switch is crucial for the proper operation of the microwave, as it ensures the correct function of the door mechanism and the control panel.  Causes of a bad microwave switch can include wear and tear over time, damage due to frequent use, or electrical faults that prevent it from functioning correctly. Symptoms of a bad microwave switch include: The microwave not starting or stopping unexpectedly The door not latching properly Error messages on the control panel The microwave light not turning on or off as expected This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.W10211974 (AP4358023) replaces 1467780, 4393599, 8206352, AH2338922, EA2338922, PS2338922.