Unplug the unit and remove the cover to access the door latch lever.
How to repair microwave door lock.
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Depending on the model involved the panels may be held in place with screws from the inside bottom or sides.
Visually inspect your door latch assembly for any signs of cracking wear damage or discoloration.
Unplug the unit and remove the inner and outer door panels to access the torsion springs that are located at the bottom front of the door.
Locate and remove the door latch assembly.
Remove the broken piece and insert the new part into the pivot openings.
For safety disconnect your appliance from the power source before beginning.
You may also need to remove the control panel to gain better access.
How to repair your microwave door latch.