What F10 (Door Locking System Failure - Upper Oven) Means
F10 indicates a door locking system failure on the upper oven, per LG's range Help Library article - relevant to the self-clean cycle's locking mechanism, which locks the door during the high-heat cleaning process.
Common Causes of F10 (Door Locking System Failure - Upper Oven)
- Door lock motor or latch mechanism has failed
- Lock sensor fault (door reads as unlocked when it's actually locked, or vice versa)
🔧 One Safe Check You Can Try
Press the CLEAR/OFF key and try the original function again; if it reappears, cycle the circuit breaker for 30 seconds before trying once more.
⚠ Why You Shouldn't Go Further Than That
- Do not attempt to force the oven door open if it appears locked and won't release, especially if you were running or just finished a self-clean cycle - the cavity can still be extremely hot, and forcing a stuck lock risks both burns and further damage to the latch mechanism.
- If F10 appears, avoid starting a self-clean cycle until the lock is repaired, since a self-clean cycle relies on the door staying securely locked throughout its high-heat process.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.