DUAL-FUEL · RANGETOP · INDUCTION
Ranges & Cooktops
Sealed-burner ignition faults, gas valve problems, induction failures and dual-fuel oven control on professional ranges and drop-in cooktops.
Range, Rangetop and Cooktop Repair
Appliance Repair Jax is an independent appliance service company. We are not affiliated with, authorized by, or endorsed by Sub-Zero Group, Inc., or any other manufacturer named on this site. All brand names, model numbers and trademarks are the property of their respective owners and are used here only to identify the appliances we service.
Independent La Cornue service
Hand-built French ranges that almost nobody in this market will touch. We service Château, Grand Palais and CornuFé burners, ovens, controls and door hardware.
CookingFrance40-mile radius

Product lines La Cornue
Model prefixes On the data plate
The data plate is behind the door or inside the cabinet. That prefix tells us the platform before we leave the shop, which is how the right part ends up on the van.
La Cornue builds hand-assembled ranges in France in very small numbers, which is exactly why most repair companies in North Florida will not take the call. We do.
La Cornue plates identify the range by collection and width rather than a coded model prefix, and the serial plaque is what parts get ordered against. Photograph it before you call anyone.
Nothing exotic. The failures on a La Cornue are the failures of any high-quality gas and electric range, and they respond to the same disciplined diagnosis.
The most common call is a burner that lights and then dies the moment the knob is released. That is the flame-failure safety system: the thermocouple is no longer proving flame to the safety valve, so gas is cut. It is a repair, not a replacement.
Second most common is continuous spark clicking. After a boil-over, moisture in a burner cap or a switch will do it, and drying it out fixes it. If it keeps clicking dry, the ignition module is done.
On the oven side, the complaint is nearly always that the vaulted oven no longer holds a temperature — cooler than the dial, or swinging wide. That is a thermostat or an element, and it is worth measuring rather than guessing, because the vaulted oven’s radiant behavior means the setpoint and the temperature at the food are not always the same number.
The Coup de Feu is a solid plate over a dedicated burner. If it takes forever to come up, the burner and its gas supply are the place to look, not the plate.
Then there is hardware. These doors are heavy, and the brass trim adds to it. Hinges and springs go out of adjustment over years of use, the door stops sealing, and the oven suddenly performs badly for a reason nobody associates with a door.
One more, specific to this market: a lot of these ranges are on propane rather than natural gas. If the orifices and regulator were not set correctly at conversion, you get lazy yellow flames, sooting on the pan bottoms and burners that will not simmer cleanly. That is a setup problem, and it is fixable.
La Cornue is now part of Composition Brands, the independent platform that took over Middleby’s residential kitchen business through affiliates of 26North. Anyone still calling it a Middleby brand is working from stale information — which also tells you something about how current their parts channel is.
Functional parts move at a reasonable pace. Cosmetic and cabinet parts — enamel panels, brass trim, specific door components — come from France and take as long as they take. We quote the real lead time before you approve anything, because on a range like this the wait is part of the decision.
We are an independent appliance repair company. We are not affiliated with, authorized by, or endorsed by La Cornue. If your range is inside its factory warranty, use the manufacturer’s own service channel for covered work.
Once it is out of warranty, using an independent shop does not void anything. Under the Magnuson-Moss Warranty Act a manufacturer cannot void your warranty solely because an independent company did the work or a non-original part was used. That protects you; it does not mean La Cornue pays us.
Diagnostic is $129 flat, credited toward the repair when you approve it, with a written estimate first. Monday to Friday 8am to 6pm, Saturday 9am to 4pm, out to about a 40 mile drive from Fruit Cove.
What we fix
DUAL-FUEL · RANGETOP · INDUCTION
Sealed-burner ignition faults, gas valve problems, induction failures and dual-fuel oven control on professional ranges and drop-in cooktops.
Range, Rangetop and Cooktop Repair
WALL · ISLAND · REMOTE BLOWER
Blower motors, speed controls, lighting and remote blower wiring on professional wall, island and under-cabinet ventilation.
Range Hood and Ventilation Repair
Written by the people who do the work
Troubleshooting
A burner that keeps sparking after the flame is up is almost always wet or misaligned, not a failed module. Here is how to tell in about ten minutes.
Troubleshooting
Burnt edges, long preheats, a cake that never sets. Sensor drift, calibration offset, a tired door seal and gas pressure each look the same from outside.
Buying & owning
The 50 percent rule was written for freestanding appliances. Built-ins are cabinetry, and that moves every threshold. Honest numbers by appliance type.
Yes. Most shops in this market decline them because the ranges are hand-built, the documentation is thin and the parts come from France. We treat them as what they are - a gas and electric cooking appliance built to a very high standard, with conventional failure modes.
No. We are an independent appliance repair company and we are not affiliated with, authorized by, or endorsed by La Cornue. We service the ranges and source genuine OEM parts through the manufacturer's US channel.
That is the flame-failure safety system doing its job. The thermocouple or its safety valve is no longer proving the flame, so gas is being shut off. It is a common, repairable fault and not a reason to replace the range.
Functional parts such as thermocouples, valves, igniters, elements and thermostats are usually reasonable. Enamel panels, brass trim and cabinet-specific parts can take considerably longer because they come from France. We quote the lead time before you approve.
Almost always. These ranges are replacement-cost appliances measured in five figures plus cabinetry and gas work, and the parts that fail are mechanical and electrical components with real service lives. Repair economics on a La Cornue are rarely close.
Yes. Blower motors, speed controls, switches and lighting on the matching hoods are all serviceable, and we handle remote-blower installations where the motor sits in the attic or on the roof.
Customer feedback
Rated 4.8 out of 5 across 72 customer reviews. Every one of these was a visit to this make of appliance.
Ansel H.Jun 17, 2026
The simmer setting on the rangetop had become an all or nothing affair. He rebuilt the burner valve, fitted a new stem seal and set the low flame properly. I can hold a sauce again without lifting the pan off.
Verity S.Jan 22, 2026
The oven side of our range was running well under the dial and everything came out pale. He recalibrated it against a probe, then found the door seal had shrunk at one corner and replaced it. Baking is even again.
Caspian B.Jun 26, 2026
Our hood rattled loudly whenever it ran above half speed. A mounting bracket had worked loose and one baffle was warped. He shimmed the bracket, replaced the baffle and rebalanced the blower wheel. The rattle is gone.
Appliance Repair Jax is an independent appliance service company. We are not affiliated with, authorized by, or endorsed by Sub-Zero Group, Inc., or any other manufacturer named on this site. All brand names, model numbers and trademarks are the property of their respective owners and are used here only to identify the appliances we service.
Talk to a technician
Give us the model and serial number from the data plate and tell us what it is doing. That is usually enough to know what part to bring.