The Microwave Door Switch is an OEM part for GE microwaves, designed to prevent the microwave from operating when the door is open by interrupting the power whenever the door is not securely closed. The door switch is an essential safety feature. Symptoms of a failing Microwave Door Switch include: The microwave not starting or heating Running when the door is opened Unusual noises when the door is closed   Causes of a bad Microwave Door Switch can result from repeated opening and closing of the door or slamming that can cause the switch to degrade or become misaligned, leading to intermittent or failure. This OEM GE part can also be used on Hotpoint, RCA, and Kenmore/Sears appliances. This part fixes the following symptomsDoesn't shut offNo heatWon't startWB24X829 (AP2024337) replaces 253819, AH237421, EA237421, PS237421, WB24X0329, WB24X0368, WB24X0384, WB24X0401, WB24X0414, WB24X0426, WB24X0429, WB24X0439, WB24X0441, WB24X0445, WB24X0796, WB24X0801, WB24X0829, WB24X10038, WB24X10076, WB24X329, WB24X368, WB24X384, WB24X401, WB24X414, WB24X426, WB24X429, WB24X439, WB24X441, WB24X445, WB24X5227, WB24X5228, WB24X796, WB24X801.