LG induction cooktop not heating

An LG induction zone that will not heat usually does not detect the pan — it must be magnetic and cover most of the ring. Next check Pet Safe (PEt) or lock mode. Zones that shut off after a few minutes often have a blocked or failed cooling fan (FE). Sensor and inverter board codes need a technician.

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Reviewed by LG Appliances Repair Service technicians · Updated October 4, 2026

EPA 608 certified
Fully insured
$75 service call, credited to repair
90-day labor · 1-yr parts warranty

Safe checks

Magnet test. A fridge magnet must stick firmly to the pan bottom.
Pan size. The base should cover most of the ring.
Locks. PEt mode or the lock icon disables the controls. On models with LOCK and TURBO keys, pressing both toggles Pet Safe.
Controls clean and dry. Water or a pan on the controls causes d0 or 4 blinks.
Airflow. Make sure drawers and cabinet items do not block the vents under the cooktop.

Normal induction sounds

A light hum or buzz at high power, a fan running after you turn it off, and clicking when zones cycle are normal.

When to call

FE that returns with clear vents, F-codes, a zone that never detects a magnetic pan, or a breaker that trips. See LG cooktop repair and LG cooktop error codes.

Repair service

Not sure what is wrong?

Use the LG diagnosis tool

Online booking

Tried the safe checks? Let a technician take it from here

Tell us what the appliance is doing and when you are home. We call back to confirm a time — usually the same day during business hours. The $75 service call is credited toward your repair.

EPA 608 certified
Fully insured
$75 service call, credited to repair
90-day labor · 1-yr parts warranty

LG appliances only · Las Vegas & Henderson

Your LG appliance, fixed by technicians who work on LG every day.

$75 service call, credited toward the repair. Written quote before any work. EPA 608 certified, fully insured. 90-day labor warranty, 1-year warranty on parts.