What F6 (Upper Oven Heating Error) Means
F6 indicates an Upper Oven Heating Error, per LG's range Help Library article - a fault with the oven's actual heating performance rather than just its temperature sensor.
Common Causes of F6 (Upper Oven Heating Error)
- Bake or broil heating element has failed
- Heating element relay or control board fault
- Wiring fault to the heating element
🔧 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
- A heating-element fault involves line-voltage wiring inside the oven cavity - don't attempt to inspect or test the element yourself with the range plugged in; that's a technician job.
- If F6 returns after a breaker cycle, stop trying to bake or roast in the upper oven until it's repaired, since a partially-failed element can heat unevenly without tripping the fault every time.
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.