Common LG cooktop problems
Professional LG cooktop repair spans three very different surfaces — LCG sealed gas burners, CBIH induction, and LSCE electric radiant — and each fails in its own way. The most frequent LG cooktop repair calls are a gas burner that will not light or clicks without stopping, an induction zone that will not detect a pan, a radiant element that stays full-on or never heats, and an H5 hot-surface light that sticks on. Cooktops surface only a thin set of codes — chiefly F3 for a touch key and H5 for the hot-surface indicator — so most diagnosis is observable-symptom work confirmed by component testing. A cracked ceramic-glass surface is a safety issue on any live cooktop.
Our LG cooktop repair process
Our experienced technicians first confirm whether the unit is an LCG gas, a CBIH induction, or an LSCE electric cooktop, because the diagnosis path is completely different. On gas they test the spark electrode, spark module, and burner orifice; on induction they test the coil, power board, cooling fan, and the cookware-detection behaviour that mimics a fault with the wrong pans; on radiant they test the infinite switch, element, and surface sensor. We replace the ceramic-glass top only as a sealed safety assembly, fit genuine LG parts matched to the model, and back the work with a 30-day labour warranty. You can book a cooktop repair online, and most visits resolve the fault in a single trip, with a clear quote before work begins.
LG cooktop models we service
We service the full LG cooktop lineup: electric radiant models such as the LSCE305ST and LSCE365ST, induction models like the CBIH3613BE and CBIS3618BE, and gas models such as the LCG3611ST, LCG3011ST, and LSCG307ST. Induction models add precise temperature control and a glass surface that stays cooler, while sealed gas burners deliver high BTU for serious cooking. Our model directory lists the coils, igniters, infinite switches, sensors, and glass tops matched to each build so the correct genuine part is sourced the first time.
Symptoms and diagnostics
Cooktops surface fewer stored codes than ovens, so diagnosis leans on observable symptoms confirmed by component testing. The real codes are F3 (touch key), F33 or F34 (induction burner sensor), H5 (hot-surface indicator), and PF (power failure). There is no pan-detection error code — an induction zone that will not heat with the wrong cookware is a non-error Cookware Detection behaviour. A gas-ignition failure is read at the spark electrode and module; a stuck radiant element at the infinite switch. Our technicians confirm each symptom at the named part, and related diagnostics are gathered on our cooktop error-code guides.
Service areas
Our specialist technicians cover all 50 states and 120+ metro areas, and the booking form accepts requests 24/7 with same-day visits where availability allows. Every visit is handled by a specialist who carries the diagnostic tools and the genuine LG parts most likely needed, so the fault is identified and, wherever possible, fixed on the first trip. Full specifications and the current cooktop lineup are published by the manufacturer at lg.com. Browse step-by-step help in our repair guides, or book any service through the scheduling page.