---
title: "Changing a La Cornue Oven Lamp: the Maker Says This One Is Yours"
description: "La Cornue oven light bulb replacement: the G9 halogen the maker specifies, why its two guides disagree on voltage, and when a dead lamp is not a lamp."
url: "https://la-cornuemiami.support/blog/changing-a-la-cornue-oven-lamp/"
date_modified: "2026-09-03"
Category: "Troubleshooting"
---


# Changing a La Cornue Oven Lamp: the Maker Says This One Is Yours

## La Cornue oven light bulb replacement: a repair company telling you not to call one

There are not many jobs on this appliance we would rather you did yourself, and this is one of them. La Cornue's own guide says as much: the bulb has probably blown, you can buy a replacement — which is not covered under the guarantee — from most electrical stores, and what to ask for is a **40 W halogen lamp, G9 fitting**.

That is unusually direct for a manufacturer, and it is worth taking at face value.

## The voltage, which the maker gets wrong once

Here is the part no summary of the manual will tell you.

The **US Albertine guide** says: *"Ask for a 40W – 120V halogen lamp (G9)"*.

The **CornuFé 110 guide** says: *"Ask for a 40 W – 230 V halogen lamp (G9)"* — for the same lamp in the same position.

120 V is the US figure. 230 V is European, and the CornuFé guides are visibly adapted from a European original: the same documents talk about a Residual-Current Device rather than a GFCI, which is a British and European term.

On a range in a US kitchen, buy the **120 V** lamp. If you are unsure, take the old one with you — the fitting is the same either way and the shop will match it.

We only know this because every quotation published on this site is checked against the actual PDFs by a script. That run found three of our own misquotations, and it found this: a figure where the manufacturer disagrees with itself.

## Doing it

**Power off, and cool.** At the breaker or the isolating switch. Cool means genuinely cool — a vaulted cavity holds heat for a long time after the range is off, and the lamp sits in the hottest part of it.

**Shelves out.** The guide asks for this and it is sensible: you need both hands, and shelf runners are at exactly knuckle height.

**Cover counter-clockwise, and expect a fight.** The manual's own words are that it may be very stiff. It is a glass cover that has been through thousands of heat cycles. A dry rubber glove or a rubber jar opener gives you grip without stressing the glass. Do not use pliers on it.

**Lamp straight out.** A G9 has two loop pins; it pulls rather than twists.

**Handle the new one with a cloth.** Fingerprints on halogen glass create a hot spot and shorten its life. It is a small thing and it is why the lamp you fit bare-handed sometimes lasts months rather than years.

**Cover back on hand tight**, then test before the shelves go back in.

## When it is not a lamp

Three situations where the answer is a visit rather than a bulb.

**A new lamp does not light.** The socket has failed, or the supply to the lamp circuit has. Sockets take the same heat cycles the cover does, and they do fail.

**Two or three went at the same time.** Bulbs do not fail in sympathy. Simultaneous failures point at the supply.

**A lamp that fails repeatedly.** A new lamp every few weeks is a socket with a poor connection generating heat, and it will eventually be more than a lamp.

## While we are on lights

The hood has them too, and they are a different item: the Château motorized hoods carry **three 20-watt high-intensity lamps** and the newer inserts use **LEDs**. Same rule applies — one out is usually a lamp, two or three at once is a socket or supply.

And if the hood's lights work but the fan does not, that is genuinely useful information: it means the supply and part of the control are alive, which narrows a blower problem considerably before anybody arrives.

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