--- title: "La Cornue Range Repair | RangeRepair.center" description: "La Cornue range repair. A French maker of hand-assembled ranges, known for vaulted oven ceilings and custom finishes." url: "https://rangerepair.center/brands/la-cornue/" --- # La Cornue Range Repair A French maker of hand-assembled ranges, known for vaulted oven ceilings and custom finishes. ## La Cornue ranges, specifically. La Cornue builds two range families for the US: the CornuFé, with five gas burners or a five-zone induction top over electric convection ovens, and the made-to-order Château, whose vaulted ovens come in gas or electric under gas, French-top, teppanyaki or induction layouts. Only the induction tops print codes, so most visits begin from the configuration and fuel on the rating plate. The La Cornue lineup ### Builds 3 range types Gas range · Dual-fuel range · Induction range ### Called out for Range Burner Won't Light and 6 more problems on La Cornue ### Repairs we do 10 repairs, on any make Diagnostic visit · Burner and igniter repair · Surface element and glass top repair · Bake and broil elements ### Error codes E2 · U400 · Er · U · E 7 La Cornue codes with a page of their own ## The La Cornue lineup. La Cornue builds 3 of the 4 range types this site covers. Which one decides how the visit is planned. [All range types](https://rangerepair.center/types/) Gas ### Gas range **4** of the problems we see on La Cornue come up on it Gas range repair Dual-fuel ### Dual-fuel range **3** of the problems we see on La Cornue come up on it Dual-fuel range repair Induction ### Induction range **3** of the problems we see on La Cornue come up on it Induction range repair ## What is particular to La Cornue. The CornuFé comes as the 36-inch 90, with one large electric convection oven, and the 43-inch 110, with two electric convection ovens, each with a gas or induction top. The Château runs from the compact induction Château 60 up to the Grand Palais 180, each built to order, so the model and serial number decide which guide and parts apply. ### A recall on recent CornuFé dual-fuel ranges La Cornue is recalling CornuFé 90 and 110 dual-fuel ranges made between March 19, 2025 and July 24, 2026, because a test port cap may be missing from the gas manifold. Owners can check the serial number on La Cornue's recall page; the electric ovens stay usable while the gas top is shut off. ### Vaulted ovens in gas or electric Larger Château ranges carry one gas and one electric vaulted oven, while the Château 75 and 90 have a single oven that can be either. A no-heat call therefore starts by working out which fuel feeds the cavity that stays cold. ### Letters on the Château induction plates The all-electric Château ranges print U for a missing or unsuitable pan, H for residual heat, L for the lock and E for an electronic failure. Only the E points to a part; the other letters describe the plate's state. ### A thermostat that drifts with age The CornuFé guides describe an oven that runs hotter as the range gets older. If turning the knob down no longer helps, La Cornue says the thermostat may need replacing, and that is a job for a technician. Parts Château ranges are configured to order, so parts are matched to the exact serial number and layout rather than to a model family. Parts lead times could not be confirmed on a La Cornue source. Repair or replace A range built to order is almost always worth repairing: a thermostat, an igniter or an induction board is a fraction of the whole. Replacement only makes sense when the body itself is damaged beyond what refinishing can fix. Book your La Cornue visit ## What we are called out for. On La Cornue, most often range burner won't light. [All problems](https://rangerepair.center/problems/) La Cornue error codes - [`E2` Surface elements and induction](https://rangerepair.center/error-codes/la-cornue-e2/) - [`U400` Controls and communication](https://rangerepair.center/error-codes/la-cornue-u400/) - [`Er` Surface elements and induction](https://rangerepair.center/error-codes/la-cornue-er/) - [`U` Surface elements and induction](https://rangerepair.center/error-codes/la-cornue-u/) - [`E` Surface elements and induction](https://rangerepair.center/error-codes/la-cornue-e/) - [`H` Mode, not a failure](https://rangerepair.center/error-codes/la-cornue-h/) [All La Cornue codes](https://rangerepair.center/error-codes/#codes-la-cornue) ### Range Burner Won't Light 6 causes, cheapest first Gas, fire or electrical risk ### Range Gas Smell 6 causes, cheapest first ### Range Oven Not Heating 7 causes, cheapest first ### Range Oven Temperature Wrong 5 causes, cheapest first ## Not a La Cornue? La Cornue is one of 32 range makes on this site. The other 31 each have a page of their own. [All 32 brands](https://rangerepair.center/brands/) ## La Cornue range repair, where we come out. 9 metros, each with its own page. 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The recall covers CornuFé 90 and 110 dual-fuel ranges built from March 19, 2025 through July 24, 2026; the serial lookup on La Cornue's recall page confirms it. If you smell gas at any time, leave the house and call the gas utility from outside. ### What does U400 mean on a La Cornue CornuFé induction range? La Cornue uses U400 for a range that has been connected to the supply incorrectly; the control shuts off after about a second and the code stays up. Switch the range off at the breaker and book a visit to have the connection checked. ### My La Cornue oven runs hotter than it used to. Can it be adjusted? The CornuFé guide says that when turning the knob down stops working, or works only briefly, the thermostat may need replacing. That part is changed by a technician, so book a visit. ### Why does my La Cornue induction plate show a U? On the Château induction plates, U means no pan is present or the pan is not suitable for induction. Try a pan a magnet sticks to firmly; if U stays with a magnetic pan centered on the zone, book a visit. --- **[Read on the site: La Cornue Range Repair | RangeRepair.center](https://rangerepair.center/brands/la-cornue/)** **[Book a visit with RangeRepair.center](https://rangerepair.center/schedule/)**