Open the Micro door, and remove the air/Vent cover on the top if there is one, Usualy 2 screws on top or the middle of the cover.
Remove the screw holding the Controller board and then you will have access to the door switches 2-3 of them depending on Manif.
Also make sure you have the power unpluged befoe you do any of this.
Good luck!
I’m happy to help further over the phone at
https://www.6ya.com/expert/michael_341f3f9dee622e54
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