LG Cooktop F3 Error Code — Meaning & Repair Cost (2026)
Touch-pad / sensor-key error. Below: the most likely causes, and what the matching repair costs — Estimated national ranges with a metro localizer. Reviewed July 2026.
What F3 means
Touch-pad / sensor-key error.
Likely causes, most common first
- A stuck key
- A wet/faulty touch panel
Base: ApplianceRepairService.ca fault-code library · Code meaning & causes · Reviewed July 2026
What it usually costs to fix Estimated
F3 on an LG cooktop resolves to the cooktop no power / won't turn on problem. LG parts typically run ×1.2 against the mainstream baseline (proprietary Korean OEM parts, limited aftermarket competition; LG drum-motor repair (~$325) runs above comparable Whirlpool (~$240)), and the ranges below already include it.
$90–$570 national estimate to fix the fault behind F3 (LG parts ×1.2). Enter a ZIP to localize.
| Most common repair | Typical total | DIY? |
|---|---|---|
| Power supply / wiring / terminal block repair | $90–$270 | Pro recommended |
| Control board replacement (glass / induction) | $265–$570 | Pro recommended |
Plus a typical service-call / diagnostic fee of $75–$150, often credited toward the repair.
Pick a quality tier for a class-typical estimate, or a specific brand to override it (brand adjusts the parts portion only). Enter a ZIP or Canadian postal code to localize to your metro's labor costs. Everything updates without a page reload; no data leaves your browser except the shard lookup.
Base: 2 published national repair-cost guides (retrieved 2026-07) · full source registry on the methodology page · National base range (BLS OEWS May 2025 + BEA RPP 2024) · Reviewed July 2026 · Estimated
Codes are universal — your location changes the repair price, never the code's meaning. See the methodology for the exact localization formula and sources.
Reviewed by a Red-Seal certified appliance technician.