The relay switch may also be known as the door micro switch and is a part for your microwave. The function of this part is to monitor the door latch and communicate whether the door latch is open or closed to the electronic control board. Before making this repair, you will want to make sure to unplug your microwave and discharge the capacitor. Your microwave capacitor is able to store electricity in large quantities even after it has been unplugged. The most common reason for replacing your relay switch is if the microwave will not turn on but your timer still runs..
Installation Instructions
Tim from Chicago, IL says,
Timer would run but the microwave won't start
I first removed the top plate above the microwave door (3 screws), then I removed the plate containing the buttons and clock. The microwave has 3 relay switches and they are in a little holder. The ho...read more