A La Cornue range is unlike almost anything else in a Johns Creek kitchen. Each one is built to order in France by hand, and the pieces that make it special, the vaulted convection oven, the brass and chrome trim, the choice of burner tops, are as much craft as they are appliance. That is exactly why the wrong repair can do lasting harm. Our technicians treat these ranges with the deliberate, careful approach they were built with, diagnosing the real fault before touching anything and fitting genuine OEM parts so the range keeps cooking the way it was designed to. We work throughout Johns Creek and central Atlanta metro, and we can usually be at your door the earliest available or the next.
Models We Service
La Cornue is organized around two hand-finished lines plus a wide range of cooktop and finish options. We service the full lineup, from the signature Château ranges down to the more accessible CornuFé, and we know how each one is assembled. Below are the models and configurations we work on most often.
Château Series
- Château 75, 90, 120, and 150 hand-built ranges, plus the flagship Grand Palais 180.
- The signature vaulted "voûte" convection oven that gives these ranges their distinctive dome and their even, circulating heat.
- Brass and chrome trim finishes, made to order and matched to the original build.
- A choice of burner top configurations, including gas, induction, the French plaque, and the flat-top Coup de Feu.
Cornufé Series
- CornuFé 90 and CornuFé 110, also known as the Albertine, dual-fuel ranges.
- A more accessible, hand-finished line that keeps the La Cornue look and feel at a smaller footprint.
- A gas cooktop paired with an electric convection oven, so both the burner and the oven sides need their own diagnostics.
Cooktop Options & Finishes
- Sealed gas burners and induction cooking zones.
- The French top, the flat-top plaque, and grill or plancha modules.
- The color-and-metal trim finishes that are made to order for each range, which is why replacement parts must be matched with care.
Error & Fault Codes
La Cornue ranges do not use a numeric fault-code system. Because they are hand-built and largely mechanical, there is no display that flashes a digital code when something goes wrong, so diagnosis is done by symptom on the burners, the spark ignition, and the oven heat. Our technicians read the range the way it was built, testing the mechanical and electrical parts directly rather than reading a screen. The table below shows the symptoms we see most often, the likely cause behind each, and what the repair involves.
| Symptom | Likely Cause | What the Repair Involves |
|---|---|---|
| Burner clicks but will not light | Spark igniter, electrode gap, or a clogged burner port | We clean or re-gap the electrode, replace the igniter if needed, and clear the burner port so it lights crisply. |
| No spark at all | Spark module, ignition switch, or wiring | We trace the ignition circuit, test the module and switch, and repair or replace the failed component and any damaged wiring. |
| Weak or yellow flame | Gas pressure, orifice, or burner cap seating | We check supply pressure, clear or replace the orifice, and reseat or replace the burner cap so the flame burns clean and blue. |
| Oven not reaching temperature | Gas oven safety valve, thermocouple or flame sensor, or the igniter glow bar on the oven burner | We test the safety valve and flame sensor and replace the glow-bar igniter as needed to restore full heat. |
| Oven uneven or convection weak | Convection fan motor or element on a dual-fuel CornuFé, or vault airflow on the vaulted oven | We inspect the fan motor and element, clear the vault airflow path, and replace worn parts so heat circulates evenly. |
| Oven will not ignite | Oven igniter or safety valve | We test the igniter and safety valve and replace whichever has failed so the oven lights reliably. |
| Knob or valve stiff, or a gas smell | A worn gas valve that needs regrease or replacement | Stop using the range. We regrease or replace the valve so it turns smoothly and seals correctly, then confirm there is no leak. |
| Electric convection oven dead on a CornuFé | Element, thermostat, or control | We test the element, thermostat, and control on the dual-fuel oven and replace the failed part to bring the oven back to life. |
Common La Cornue Problems We Fix
- Burner ignition failure. A burner that clicks without catching, or will not spark at all, traced back to the igniter, electrode, or ignition circuit.
- Weak flame. A low, yellow, or uneven flame caused by gas pressure, a fouled orifice, or a poorly seated burner cap.
- Oven not heating. A gas oven that fails to reach temperature because of the safety valve, flame sensor, or oven igniter.
- Oven temperature off. An oven that runs hot or cold, throwing off careful cooking on a range built for precision.
- Convection fan noise on a CornuFé. A grinding or rattling fan motor in the electric convection oven of a dual-fuel range.
- Stiff or leaking gas valves. Worn knobs and valves that turn poorly or let off a gas smell and need regrease or replacement.
- Worn burner caps and electrodes. Corroded or damaged caps and electrodes that keep a burner from lighting cleanly.
- Trim and knob replacement. Damaged brass, chrome, or color trim and knobs matched to your range's made-to-order finish.
Because every La Cornue is hand-built and made to order, genuine OEM parts and correct diagnosis matter even more here than on a mass-produced range. The vaulted convection oven, the voûte, is a design unique to La Cornue, and it needs a technician who understands how its airflow and heat work together. One safety note: if you ever smell gas, do not use the range. Book service and let a technician find and correct the source before you cook on it again.
Maintenance & Guides
A La Cornue rewards a little regular care. Keeping the burner ports clear, the caps seated correctly, and the electrodes clean goes a long way toward a crisp, reliable light every time, and giving the vaulted oven room to circulate air keeps its heat even. Our La Cornue range guide walks through the routine upkeep that keeps a hand-built range performing the way it did on day one.
When something does go wrong, our problem guides help you understand what you are seeing before a technician arrives. Read La Cornue burner ignition for what a clicking or dead burner usually means, and La Cornue oven heat problems for why an oven might run cold, uneven, or refuse to light. Either way, if the fault involves gas or the oven safety valve, the safest step is to book service rather than attempt a fix yourself.