Customer Questions and Answers for Switch Assembly (Door Interlock) by Lg

This switch assembly is the microwave's door interlock module. It mounts to the latch board and contains the switches that confirm the door is closed, restoring consistent start/stop operation when worn or sticking switches cause intermittent "door" errors.

• Houses and positions the interlock micro-switches on the latch board
• Signals the control that the door is securely closed so the unit can run
• Common fixes for: won't start, stops when the door is jostled, "door" error messages, or runs but doesn't heat
• Helps correct intermittent operation caused by fatigued or misaligned switches

• Disconnect power before servicing; microwaves retain dangerous high voltage
• Remove the upper grille and control panel to access the latch area per your model
• Note wire locations and switch orientation; move connectors one at a time to the new assembly
• After installation, verify door latching and test operation before reassembly