The Fuse is an OEM part for Whirlpool microwaves. It is a crucial safety component designed to protect the microwave from electrical surges and potential short circuits by breaking the circuit if the current flow exceeds safe levels. Causes of a bad microwave fuse can include electrical surges, faulty wiring, or normal wear and tear over time. A blown fuse will render the microwave inoperable, as it cuts off the power supply to prevent further damage or hazards. Symptoms of a bad microwave fuse include: The microwave not powering on The microwave stopping mid-operation No response from the control panel or keypad Sudden loss of power during use This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.This part fixes the following symptomsWon't startWPM0805101 (AP6014669) replaces M0805101, 14204182, 14204376, 14207948, 14208889, 14225047, 15-020, 2793, 3601-001198, 51001230, 51001303, 54001099, 57001067, 58001220, PS11747931, R0713554, R9800424, Y0044420, Y0054121, Y0057191, Y0087050, Y0312794.