---
title: "Cooktops"
description: "LG cooktops: the drop-in half of the cooking line — LCE and its neighbors — in induction, radiant electric and gas, at thirty and thirty-six inches."
url: "https://lgmiami.support/appliances/cooktop/"
date_modified: "2026-09-05"
Appliance type: "Cooktops"
---


# LG cooktops

### Three technologies, one sheet of glass

LG’s cooktops are induction, radiant electric or gas, in thirty and thirty-six inch widths. Induction and radiant look nearly identical installed — a flat black surface with printed rings — and behave nothing alike: induction heats the pan and leaves the glass cool, radiant heats the glass and the glass heats the pan. That difference is the first question on a service call, because it changes every subsequent one.

### What the codes cover

The cooking code list is shared with the ranges, and three entries belong to the cooktop specifically: F3, a touch pad sensor key error; F33 and F34, the front induction burner temperature sensors; and H5, which is not an error at all but the indication that the surface is above 150°F. LG also documents a code for water or metal left on the touch panel, which in a working kitchen is a more common cause than any component failure.

Induction · radiant electric · gas · 30 and 36 inch

Cooktop repair

Induction, radiant electric and gas, at 30 and 36 inches

F33 and F34 are induction burner sensors; H5 is a hot-surface indicator, not an error

On glass tops, a spill under the panel is a real and common cause

Three technologies, one sheet of glass

LG’s cooktops are induction, radiant electric or gas, in thirty and thirty-six inch widths. Induction and radiant look nearly identical installed — a flat black surface with printed rings — and behave nothing alike: induction heats the pan and leaves the glass cool, radiant heats the glass and the glass heats the pan. That difference is the first question on a service call, because it changes every subsequent one.

What the codes cover

The cooking code list is shared with the ranges, and three entries belong to the cooktop specifically: F3, a touch pad sensor key error; F33 and F34, the front induction burner temperature sensors; and H5, which is not an error at all but the indication that the surface is above 150°F. LG also documents a code for water or metal left on the touch panel, which in a working kitchen is a more common cause than any component failure.

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

On induction that is the coil, its sensor or the board section that drives it, and it is worth knowing that a single zone failing is the good version — a board failure usually takes more than one. On radiant it is the element or the connector under it, and elements fail open, which is measurable. On gas it is the igniter, the burner cap or a blocked port, and cleaning fixes more of them than parts do.

### The touch controls have stopped responding.

First look for water. LG's own list is explicit about it: a code appears when metal objects or water have been in contact with the panel for a prolonged time. A wet cloth left over the controls will do it, and so will a spill that has crept under the glass edge. Dry it, take everything off the panel and cycle the power at the breaker. What is left after that is the touch board, which is F3 on the published list.

### H5 appears and everything works.

That is the hot surface indicator. LG's list says it plainly: the cooktop is above 150°F and it is not an error. It goes out on its own as the glass cools. The only version worth acting on is an H5 that stays lit on a cooktop that is cold to the touch, which means the sensor rather than the surface.

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