---
title: "Vaulted gas oven ignition repair"
description: "La Cornue vaulted gas oven ignition repair: the vaulted gas oven has no display, no window and no error code — La Cornue's own Château guide contains no…"
url: "https://la-cornuemiami.support/services/vaulted-gas-oven-ignition-repair/"
date_modified: "2026-09-03"
Appliance type: "Ovens, Ranges"
---


# La Cornue vaulted gas oven ignition repair

### About lighting a vaulted gas oven

There is no display, no window and no code — La Cornue's Château guide has no troubleshooting section at all, and that is normal for this make rather than a sign the electronics are dead. So the work is measurement: igniter current, because the safety valve opens when the igniter draws enough amps and not when it looks bright; then the supervision signal; then the valve, held open and released. An igniter that glows convincingly and sits below the threshold is the classic failure here, and one clamp-meter reading separates it from the expensive alternative.

What this involves

A glowing igniter that never opens the valve is the classic failure here

Safety valve and flame supervision measured rather than swapped

Same-day priority — an oven that smells of gas is not a next-week call

Watch it try

Does the igniter glow, how strongly, and how long before the valve should open. This is where most of the answer is.

Measure the igniter

Current draw, not appearance. A glowing igniter that never reaches the current the valve needs is the classic failure on this make.

Test flame supervision

Thermocouple output against what the safety valve needs to stay open.

The safety valve itself

Opens, holds, and shuts. A valve that will not hold is why an oven lights and dies.

Relight and stay for a cycle

An oven that lights once and fails on the second cycle is the common trap here.

### Can I light the oven with a match meanwhile?

No — this is the one place we are firm. On a surface burner a long match is a reasonable stopgap because you can see the flame and the gas goes into an open room. A vaulted oven is a sealed cavity with the burner behind a heavy door, and the safety valve exists precisely to stop gas flowing without an established flame. Use the cooktop and wait.

### It lit yesterday and not today.

That is how this problem arrives — an igniter degrades gradually and crosses the threshold on one particular day. If it had been getting slower to light over the previous weeks, mention it; that is confirmation rather than a complaint and it makes the diagnosis quick.

---

**[Read full article: Vaulted gas oven ignition repair](https://la-cornuemiami.support/services/vaulted-gas-oven-ignition-repair/)**