Microwave door will not stay closed or pops open during operation.

Safety First: Unplug the microwave before adjusting door components.

• Inspect door and frame: Check that the door sits squarely in the opening and that hinges are not bent.
• Check latch hooks: Examine the door latch hooks for wear or rounding that prevents them from engaging the switch bracket.
• Inspect strike and bracket: Look at the cabinet-side door strike and switch bracket for cracks or looseness. Tighten mounting screws.
• Replace worn parts: Replace the door latch assembly or hinge components if they are worn or bent.