This microswitch, also known as a safety switch, is a genuine OEM replacement part for use in microwaves. It is a highly sensitive switch which responds to slight changes in pressure or position, and ensures that the microwave only operates when the door is shut. The switch can fail due to physical damage or electrical failure, resulting ...Read morein difficulties closing the door, and turning on the appliance. To remove the faulty switch, disconnect the wiring connectors and take note of where they are positioned. Place the new switch in position and reattach the wiring connectors to the appropriate terminals and close the microwave door to check that the switch engages appropriately.