La Cornue is the oldest name we service, a French maker of handcrafted ranges built one at a time since 1908. When a La Cornue turns up in a Breckenridge home, it is usually the centerpiece of the kitchen, a CornuFe or a made-to-order Chateau finished in a chosen enamel color and trim. These ranges are engineered to be repaired and to last for decades, which is exactly the right philosophy for us: a fault is almost always a single mechanical part, not a reason to replace the range.
Because a La Cornue is largely electromechanical, it does not publish a numeric fault-code system the way GE-based or Bosch controls do. There is no display throwing an F-code or an E-code. Instead we diagnose it the way it was built to be diagnosed, by symptom, cause and fix: we test the igniter, the thermocouple, the gas valve, the oven thermostat and the element directly with a meter and a thermometer, then confirm the failed part before ordering it. We tell you the parts timeline up front, because low-volume components can take longer to arrive, and we protect the enamel and brass while we work.
Models We Service
- CornuFe: the CornuFe 90 and CornuFe 110 dual-fuel and all-gas ranges.
- Chateau: the made-to-order Chateau series in 90, 120, 150 and larger widths, with gas and electric ovens.
- Grand Palais: the flagship multi-oven ranges with vaulted gas and convection ovens.
- Cooktop options: gas burners, the flame-grill, the simmer plate (plaque coup de feu), and induction where fitted.
Diagnosis by Symptom, Cause and Fix
La Cornue does not use numeric error codes, so instead of a code table we work from a symptom table. This is how we approach the faults we see most often, confirming each cause with a direct test before we repair.
| Symptom | Likely Cause | What the Fix Involves |
|---|---|---|
| Burner clicks but will not light | Dirty or wet igniter, misaligned cap, weak spark | Clean and align the burner, test and replace the igniter or spark module |
| Burner lights then goes out | Failing thermocouple or flame-supervision safety | Test the thermocouple and safety valve, replace the failed part |
| Oven runs hot or cold | Drifting thermostat, weak burner, blocked orifice | Compare cavity temperature to setting, recalibrate or replace the thermostat |
| Electric oven not heating | Failed bake or convection element, open thermostat | Test the element and thermostat for continuity, replace the failed part |
| Uneven flame or low output | Partly blocked burner ports or incorrect gas orifice | Clean the ports, verify the orifice matches the gas supply |
| Oven door will not seal or seat | Worn gasket, sagging hinge, misaligned door | Replace the gasket, adjust or replace the hinge, re-seat the door |
Common Problems We Fix
- A cooktop burner that will not light or will not stay lit
- An oven that no longer holds the set temperature
- A simmer plate that runs too hot or too cold across its zones
- A convection fan that has grown noisy or stopped
- A worn oven-door gasket letting heat escape
- Brass or steel trim and knobs that need replacement after years of use
- Gas smell or a burner that hisses, always treated as a safety-diagnostic visit
Built to Be Repaired, Not Replaced
A La Cornue is designed so individual parts come out and go back in. When a burner or thermostat fails after twenty years, that is the range working as intended. We restore the part rather than pushing you toward a replacement that would cost many times more.
La Cornue Not Performing as It Should?
Book a diagnosis and we will find the cause and give you a written estimate. Diagnostic and travel fees, if applicable, are confirmed before the appointment and before repair approval.
Maintenance and Guides
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Range Repair
Burner, oven and thermostat faults.
Cooktop Repair
Gas and induction cooktops.
Wolf Repair
Compare pro-range platforms.
Viking Repair
Another gas-range specialist.
Burner Not Igniting
Why burners fail to light.
Oven Not Heating
Where oven heat faults start.