What F3 (Touch Pad Sensor Key Error - Cooktop) Means
F3 indicates a Touch Pad Sensor Key Error on LG's cooktop control panel, per LG's range/cooktop Help Library article, which documents this scheme across its Electric Range, Radiant Cooktop, and Gas Range tabs together.
Common Causes of F3 (Touch Pad Sensor Key Error - Cooktop)
- Metal object or spilled liquid resting on the touch controls
- Food residue or grease film on the touch panel
- Touch pad control board fault
🔧 One Safe Check You Can Try
Wipe the cooktop's touch panel clean and dry, checking for any spilled liquid, grease film, or metal objects (pots, utensils) resting on or near the touch controls, since LG names both moisture/metal contact and a genuine sensor fault as causes for this code family; then turn the circuit breaker off for 30 seconds and back on.
⚠ Why You Shouldn't Go Further Than That
- If cleaning the panel and cycling the breaker doesn't clear F3, the touch pad control board needs a technician's inspection rather than continued button presses on an unresponsive panel.
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.