LG Oven Error Code F10
The lock motor ran but the control never saw the door reach the locked or unlocked position, which is why this code typically appears around self-clean. Cooling and a power reset free many doors; a latch that never moves on a cold oven means the lock assembly has failed.
Also shown as: F-10, F10F20
Common causes
- Door lock motor has failed or is too weak to move the latch
- Latch or hook bent, obstructed or out of alignment
- Lock switch not reporting the latch position
- Broken wiring between the lock assembly and the control board
What to check, in order
- Do not force the door. If it is locked after self-clean, let the oven cool completely; the lock often releases once the temperature drops.
- Press CLEAR/OFF and reset power at the breaker for a few minutes, then try starting and cancelling a clean cycle to cycle the lock motor.
- Check for anything physically blocking the latch, such as foil, a warped rack or food debris around the door frame.
- If the lock motor buzzes but the latch never moves, or the door stays locked on a cold oven, the lock assembly needs replacement by a technician.
Clear the code and test
- Fix what the checks above found first. Clearing the code without fixing the cause only brings it back.
- Plug the appliance back in and restore its water supply if it has one.
- Run the shortest programme and watch the point where the code appeared before.
- If the programme finishes with no code, the fault is cleared. If the code returns, write it down before calling a technician — it speeds up the diagnosis.
When to call a professional
Most cases are solved by the checks above. Book a technician if any of these apply:
- The code comes back after you have run the checks and a test cycle.
- You smell burning, see sparks or scorch marks, or the breaker trips.
- Water is leaking and you cannot stop it at the tap.
- The fix needs panels opened beyond what your manual describes, or a part tested with a meter, and you are not set up for that.
When you call, give the brand, the code F10, your model number (on a label inside the door or on the back) and the checks you already ran. It shortens the visit.
Parts that may be involved
Door lock motor assemblyDoor latchElectronic control board
Parts are model-specific. Find your model number first — usually on a label inside the door, on the door frame or on the back — and match the part to that number before ordering.
Questions people ask about F10
What does F10 mean on a LG oven?
F10 means: Door lock error: door lock failed while operating. The lock motor ran but the control never saw the door reach the locked or unlocked position, which is why this code typically appears around self-clean. Cooling and a power reset free many doors; a latch that never moves on a cold oven means the lock assembly has failed.
Can I fix LG F10 myself?
Start yourself: the checks on this page cover the causes you can reach without opening the machine up. If they point to a faulty part, testing or replacing it is usually a technician job.
How do I clear LG F10?
Fix the cause first — clearing the code on its own brings it straight back. Then restore power and water, run the shortest programme, and watch the stage where the code appeared. If the programme finishes with no code, it is cleared.
Sources checked
- LG Help Library: washing machine error codes
- PartsTown Resource Center: LG washing machine troubleshooting codes
The meaning and checks for this code were checked against the sources above in November 2026. Codes vary by model and region; if your manual lists a different meaning for your exact model, follow the manual.