Candy Stuck or Shorted Door Interlock Switch

Microwave interior light, fan, and turntable run when door is closed, even without pressing START.

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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.

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Possible Causes

Welded door switch contacts, Misadjusted door latch, Shorted wiring at door switch block, Faulty control board input

How to Fix / Troubleshooting

Immediate safety action: Unplug the microwave immediately. Operating with a faulty door safety system is extremely dangerous.

Inspection (experienced users):

  • Remove the outer cover.
  • Locate the door interlock switch cluster.
  • Inspect for melted or discolored switches and wiring.
  • Test each switch with a multimeter to ensure it opens and closes correctly with door movement.

Repair: Replace any suspect door switches as a set using a Candy door interlock kit. If switches test good but the unit still runs with the door closed and no command, the control board may be faulty and should be replaced by a technician.

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Repair Difficulty

Professional Required 5/5

Required Part

Door Interlock Switch Kit
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