---
title: "Induction cooktop repair"
description: "LG induction cooktop repair: an induction top has no element to fail. It has a coil per zone, a temperature sensor under each, and an inverter board driving…"
url: "https://lgmiami.support/services/induction-cooktop-repair/"
date_modified: "2026-09-06"
Appliance type: "Cooktops, Ranges"
---


# LG induction cooktop repair

### Test the pan before you suspect the cooktop

Half the calls that begin with a dead induction zone end with the cookware. Put a kitchen magnet on the base of the pan: if it does not grip firmly, that zone will never see it and the top will behave exactly as though it were broken. A base that has warped away from the glass, or a pan much smaller than the ring drawn on the surface, does the same thing intermittently. And an induction top switches itself off when its own electronics get too warm, which in this city is a real possibility over a wall oven with a blocked vent or in a cabinet with no clearance behind it.

What this involves

One zone dead is a coil or a sensor; several is the board

F33 and F34 are induction-only codes

The glass comes up, and the parts underneath are dearer than radiant

Rule out the pan

A pan that is not ferrous will not heat and nothing is broken. It happens more than people admit.

Establish how many zones

One, or more than one. It decides the whole diagnosis.

Check the ventilation under the top

Induction electronics need airflow in the cabinet below, and a blocked vent produces shutdowns that look like failures.

Test the coil and its sensor

F33 and F34 name the front zones. Measured rather than replaced on suspicion.

Reassemble the glass properly

The seal around the top is what keeps a spill out of the electronics.

### One zone is dead and the rest are fine.

That is the good version of this repair — a single coil or its sensor rather than the inverter board underneath. Tell us which zone and whether anything appeared on the display, because the front burners report separately on this make.

### There is a buzzing when I use two zones at once.

Some hum is normal on induction and it comes from the pan rather than the appliance, so a light pan or a multi-layer base will buzz more. A rattle, or a whine that rises and falls with the cooling fan, is the appliance and worth looking at.

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