Sharp Door Interlock Switch Miswiring or Failure

Microwave interior light, fan, and turntable run when the door is opened, or continue running after cycle ends.

Advertisements

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Advertisements

Possible Causes

Incorrectly installed door switches, Stuck relay on control board, Shorted door monitor switch, Damaged door latch mechanism

How to Fix / Troubleshooting

Safety: Unplug the microwave immediately. A microwave that runs with the door open is unsafe and must not be used.

Steps:

  • 1. Do not operate: Leave the unit unplugged until repaired.
  • 2. Visual door check: Inspect the door hinges and latch hooks for obvious damage.

Advanced: A technician must inspect the door switch assembly for correct wiring and operation, and test the control board relays. Replace any miswired or failed switches and, if necessary, the control board.

Advertisements

Repair Difficulty

Professional Required 5/5

Required Part

Door Switch Assembly
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements