LG Oven F10 Error Code — What It Means
The F10 code points to a door locking system failure on the upper oven. The motor that locks the door for self clean is stuck, miswired, or not reporting the right position back to the control.
The board expects to see the lock travel and confirm its state. When that confirmation never arrives, it trips F10 and blocks the cycle.
Common Causes
- Failed door lock motor The lock motor stalls and cannot drive the latch to its locked or unlocked position.
- Bad lock position switch A faulty switch never tells the board the latch reached its target.
- Jammed lock mechanism Debris or a bent cam keeps the latch from moving fully.
- Loose lock wiring A frayed or unseated harness between the lock and board breaks the signal.
- Control board fault A bad board can misread the lock or fail to power the motor.
Step-by-Step Fix
- Press CLEAR/OFF and cut power at the breaker for 30 seconds, then restore it.
- Watch whether the lock motor tries to move when you start a self clean.
- Remove the top or rear panel to reach the door lock assembly.
- Check the latch for debris or a bent cam and clear any obstruction.
- Inspect the lock harness and reseat the connector at the control board.
- Replace the door lock motor assembly if it stalls or never reaches position.
- Restore power and run a lock cycle to confirm F10 stays clear.
Parts Often Needed
| Part | Notes |
|---|---|
| LG oven door lock motor assembly | Amazon | Match to your model since latch styles differ across ovens. |
| Door lock position switch | Amazon | Order if the switch fails to confirm the latch position. |
| Range main control board | Amazon | Last resort if the lock and wiring check out but F10 stays. |
When to Call a Pro
Call a technician if the lock and wiring are sound but F10 returns, since the control board is then the likely cause. If the door is stuck locked with food inside, a pro can release it without damaging the latch.