You might have an issue with the door latch lever or button if your microwave will not open.
Broken microwave door button.
The things i have seen in a microwave not working are the high voltage diode shorted or opened and the 12v relay on the control board which drive the voltage on the magnetron.
The door latch lever assembly usually consists of a paddle or button that either pivots downward or pushes into the control panel.
If the button won t push in to open the microwave door one of the little ears that holds the button in place has broke off and is keeping the button fron being depress.
If the handle actuator is broken replace it.
The handle actuator is connected between the door open button and the door latch assembly.
I think i have never seen a door switch broken unless someone physically damages them.
In most of the cases where the microwave door is not opening the cause comes out to be an issue with the door latch button or lever.
Find out how to test and replace the latch assembly on your microwave.
If the door on your microwave oven won t open you may have a problem with the door latch lever.
2 of customers exhaust fan not working.
It then contacts the door latch assembly and releases the door hooks to allow you to open the door.