F13
LG Studio Oven Door Lock Switch Error

Oven displays F13 and may not start a cook or self-clean cycle.

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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

Faulty door lock position switch, misaligned door latch, broken lock cam, wiring issue between lock switch and main PCB

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker.

  • Check door closure: Ensure the oven door closes fully and evenly. Look for bent hinges or obstructions around the latch area.
  • Inspect latch strike: The metal latch on the door should align with the lock mechanism. Adjust or tighten screws if it is loose or misaligned.
  • Access lock assembly: Remove the top or rear panel to reach the door lock motor and switches. Verify that the switch actuators move freely when the lock engages.
  • Test switches (if you have a meter): With power OFF, disconnect the switch wires and check continuity while manually operating the lock. Replace the lock assembly if the switches do not change state correctly.
  • Check harness: Inspect the wiring from the lock switches to the main PCB for breaks or loose connectors.

Warning: Do not bypass door lock switches; they are safety devices required for self-clean operation.

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Repair Difficulty

Medium 3/5

Required Part

Oven Door Lock Motor Assembly
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