Ge Microwave Door Switch Test

This video provides step by step repair instructions for replacing the upper and lower door switches on a ge microwave.

Ge microwave door switch test.

When the door is opened during a cook cycle the monitor switch door sensing switch primary interlock switch and power relay are deactivated. The switches also deliver voltage to the diode and magnetron which heat the microwave. A door switch is a simple on off mechanism that prohibits the microwave from operating when the door is open. The switch monitors the door latch position and communicates whether the door is open or closed to the electrical control board.

Most are black in color and all have metal prongs called terminals extending out from the body of the switch. The diagram below is typical these microswitches arent the most robust switches ever made and can be down right squirrely. Microwave door switches are only an inch long. Before you begin to test a door interlock switch first make sure your microwave oven is unplugged and that your capacitor is discharged.

These three switches serve mainly to keep the microwave from operating with the door open. The most common reason for replacing. Scott halseth the switch is called door sensing switch part number wb24x829. Most microwave ovens have three safety microswitches in the door latch assembly.

Testing a door switch. When i plug the power back in the fan comes on and stays on whether the door is open or not. There may be more than one. The secondary door switch is a simple on off mechanism that stops the microwave from operating when the door is open normally opened.

If the switches test positive this further confirms that magnetron has failed and will need to be replaced. Replaced all 3 door switches and thermo fuse. Microwave door switches are normally mounted to a bracket near the door latch. Microwave door switches are only an inch long.

You could use a multimeter and see if you get. When a switch looks flakey like tha. A door switch is a simple on off mechanism that prohibits the microwave from operating when the door is open. Ge microwave combo oven unit stopped heating light not turning on and turntable not spinning.