What F3 (Touch Pad Sensor Key Error) Means
F3 indicates a Touch Pad Sensor Key Error, per LG's range Help Library article.
Common Causes of F3 (Touch Pad Sensor Key Error)
- Temporary touch-pad sensor glitch
- Foreign substance or moisture on the touch panel affecting sensor readings
- Touch pad control board fault
🔧 One Safe Check You Can Try
Turn the circuit breaker for the range off, wait 30 seconds, and turn it back on; unlike most other F-codes, LG doesn't list a CLEAR/OFF button press as a first step for F3, going straight to a breaker cycle.
⚠ Why You Shouldn't Go Further Than That
- If a breaker cycle doesn't clear F3, the touch pad control board needs a technician's inspection - don't press repeatedly on an unresponsive panel hoping it'll reset itself.
- Cleaning food residue or spills off the touch panel regularly is worth doing as routine maintenance, since debris on capacitive touch controls is a common, non-hardware trigger for sensor-key errors on many touch-panel ranges.
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.