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Original post by: Tim D ,


You have bad interlock switches in the microwave door. There are three of them. One of them (most likely the door sensing switch) is backwards (i.e. the switch closes when the door is open, and the switch open when the door is closed. The switches aren’t very expensive, only $5-10 a piece.

Here is an article on how to test an interlock switches:

You can enter your model number here to get a replacement door switch: