--- title: "Ovens" description: "La Cornue ovens — there are three different ovens on this make and they fail in three different ways." url: "https://la-cornuemiami.support/appliances/oven/" date_modified: "2026-09-03" Appliance type: "Ovens" --- # La Cornue ovens ### Three ovens, one badge A Château 120 and everything larger is dual-fuel: a vaulted gas oven with an electric broiler on one side, a vaulted electric oven with its own broiler on the other. The grand versions are 3.1 cubic feet on the gas side at 13,000 BTU and 2.7 cubic feet electric; the standard vaulted ovens are 2.3 cubic feet at 11,000 BTU and 2.0 cubic feet electric. A range ordered with an all-induction cooktop has electric ovens on both sides, without exception — that is a rule on La Cornue’s order form, not a preference. And since November 2025 there is the Château Tourelle, F60 and F75, a fully electric multifunction wall oven meant to be installed in a cabinet run beside a Château cooktop. Four ovens, three heat systems, one nameplate. The first useful thing a customer can tell us is which one they mean. ### Vaulted ovens and convection ovens are two different appliances A **vaulted oven** — the *voûte* — is a sealed dome that cooks by radiant heat from its own mass, with no fan, and on the gas side no window because the door is part of that mass. It is slow to come up, it holds beautifully, it recovers slowly, and it is graded rather than even on purpose. A **convection oven** is what the CornuFé models and the Château Tourelle carry: elements, a fan and a mode dial — the CornuFé 90’s oven has seven cooking modes, two convection fans and eight heating elements across 3.81 cubic feet. Their failures have almost nothing in common. A vaulted gas oven fails at the igniter, the thermocouple or the safety valve; a convection oven fails at an element, a fan bearing, a sensor or a board. The most useful thing a booking can say on this make is which of the two it is about. ### What a vaulted oven asks of a technician Radiant cooking inside a sealed dome means the oven has no fan to blame and no window to look through, and it means the mass of the cavity is part of the cooking. A repair that leaves the door seal slightly proud, or the door catch a turn out of adjustment, shows up a week later as a cooking complaint rather than as a leak. The gas ovens are lit and held by an igniter, a safety valve and a thermocouple, all reachable from the front; the electric ones are elements, a thermostat and, on the multifunction platforms, a board. None of it self-reports. Everything is measured — gas pressure at the manifold, resistance across an element, actual shelf temperature against the dial — because on a make with no diagnostic display, measurement is the only alternative to guessing. ### The parts that are worth waiting for La Cornue is hand-built in Saint-Ouen-l’Aumône and a genuine part sometimes has to come from France. We would rather tell you that on the phone than after the visit. Igniters, thermocouples, safety valves, elements, thermostats, door seals, oven lamps and the common hardware we stock or source domestically, and those are same-week jobs. A vaulted cavity component, a color-matched enamel panel or a control specific to one configuration is an order with a lead time, and on an appliance built to order that is the trade the owner already made once. What we do not do is fit a generic substitute into a range that cost more than a car and call it repaired. Vaulted ovens and convection ovens — gas, electric, and the Tourelle wall oven Vaulted gas, vaulted electric and the electric Tourelle wall oven Gas ovens carry an electric broiler — browning and baking can fail separately Thermostat drift is measured against a probe, never adjusted by feel Three ovens, one badge A Château 120 and everything larger is dual-fuel: a vaulted gas oven with an electric broiler on one side, a vaulted electric oven with its own broiler on the other. The grand versions are 3.1 cubic feet on the gas side at 13,000 BTU and 2.7 cubic feet electric; the standard vaulted ovens are 2.3 cubic feet at 11,000 BTU and 2.0 cubic feet electric. A range ordered with an all-induction cooktop has electric ovens on both sides, without exception — that is a rule on La Cornue’s order form, not a preference. And since November 2025 there is the Château Tourelle, F60 and F75, a fully electric multifunction wall oven meant to be installed in a cabinet run beside a Château cooktop. Four ovens, three heat systems, one nameplate. The first useful thing a customer can tell us is which one they mean. Vaulted ovens and convection ovens are two different appliances A vaulted oven — the voûte — is a sealed dome that cooks by radiant heat from its own mass, with no fan, and on the gas side no window because the door is part of that mass. It is slow to come up, it holds beautifully, it recovers slowly, and it is graded rather than even on purpose. A convection oven is what the CornuFé models and the Château Tourelle carry: elements, a fan and a mode dial — the CornuFé 90’s oven has seven cooking modes, two convection fans and eight heating elements across 3.81 cubic feet. Their failures have almost nothing in common. A vaulted gas oven fails at the igniter, the thermocouple or the safety valve; a convection oven fails at an element, a fan bearing, a sensor or a board. The most useful thing a booking can say on this make is which of the two it is about. What a vaulted oven asks of a technician Radiant cooking inside a sealed dome means the oven has no fan to blame and no window to look through, and it means the mass of the cavity is part of the cooking. A repair that leaves the door seal slightly proud, or the door catch a turn out of adjustment, shows up a week later as a cooking complaint rather than as a leak. The gas ovens are lit and held by an igniter, a safety valve and a thermocouple, all reachable from the front; the electric ones are elements, a thermostat and, on the multifunction platforms, a board. None of it self-reports. Everything is measured — gas pressure at the manifold, resistance across an element, actual shelf temperature against the dial — because on a make with no diagnostic display, measurement is the only alternative to guessing. The parts that are worth waiting for La Cornue is hand-built in Saint-Ouen-l’Aumône and a genuine part sometimes has to come from France. We would rather tell you that on the phone than after the visit. Igniters, thermocouples, safety valves, elements, thermostats, door seals, oven lamps and the common hardware we stock or source domestically, and those are same-week jobs. A vaulted cavity component, a color-matched enamel panel or a control specific to one configuration is an order with a lead time, and on an appliance built to order that is the trade the owner already made once. What we do not do is fit a generic substitute into a range that cost more than a car and call it repaired. ### The oven reaches temperature but everything browns on one side. On a vaulted oven, some of that is the design. Heat radiates from the dome and the strongest zone is not the geometric center, so La Cornue's own cooking notes tell owners to turn a large roast during cooking and to leave room between two loaded shelves. Before anybody replaces anything we check the three things that make it worse than designed: whether the range is level, because a dish of water on the shelf should sit at one depth all over; whether the door seal is intact and the catch is still pulling the door onto it; and whether a baking tray larger than the specified size is blocking the circulation the oven does have. That is a fifteen-minute check that has saved a lot of unnecessary parts. ### It used to hold 350 and now it runs hot. Is that the thermostat? Most often yes, and the manual says as much: an oven that gets hotter as the range gets older, and does not come back when you turn the dial down, wants a new thermostat rather than a new habit. We measure it before we say so — a calibrated probe on the shelf, through a full cycle, so the number in the report is a number rather than an impression. The reason it matters on this make is that owners adapt: a range that has run 25 degrees hot for three years has a cook who has quietly rewritten every recipe around it, and putting the oven back to specification changes their kitchen. Worth knowing that is coming. ### My gas oven will not light and there is no error on the panel. There is no error on the panel because a Château gas oven has nothing to print one with, and that is normal for this make rather than a sign the electronics are dead. La Cornue's own Château guide contains no error codes at all. So the diagnosis is done the way gas has always been diagnosed: does the igniter glow, does it glow strongly enough to open the safety valve, does the thermocouple hold the valve once it is open, and is the valve itself passing gas. A glowing igniter with no flame is the classic one and it is a part we carry. Please do not keep cycling it and do not leave the door shut on an oven that smells of gas — turn it off at the valve and call. ### Does the Tourelle wall oven get serviced like the range oven? No, and it is worth being clear about it because the badge is the same. The Tourelle is fully electric and multifunction — elements, a fan, a sensor and a control board — so it fails the way a good electric oven fails, and its installation guide is a separate document from the range's. It is also built into cabinetry to a cutout specification, which means pulling it forward is a planned step rather than something to do in the first ten minutes. If you have both a Château and a Tourelle, tell us which one is the problem when you book; the parts we bring are not the same. --- **[Read full article: Ovens](https://la-cornuemiami.support/appliances/oven/)**