La Cornue Appliance Repair, Diagnosed by What the Range Is Doing
A burner that sparks but won’t catch, a vaulted oven that runs hot or cold against the dial, an induction zone that has stopped responding, a hood that has gone quiet? We work on La Cornue ranges, ovens, cooktops and hoods and nothing else. Most La Cornue ranges show no error code at all, so the problem is measured and tested — gas pressure, flame quality, thermostat accuracy — before any part is ordered, and our own labor is covered for 30 days after the visit.
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Full-Service La Cornue Appliance Repair
One call covers diagnostics, repair, and follow-up — for every major La Cornue appliance in your home.
Estate & Multi-Property Service
One point of contact across a primary residence, a second home and staff kitchens, with technicians who already know your specific range.
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Warranty Repair Support
An honest steer on whether your La Cornue coverage should handle a repair, plus 30 days of cover on our own workmanship.
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Installation, Cabinetry Integration & Gas Conversions
Ranges and hoods that are built into cabinetry and stonework, plus natural-gas-to-propane conversions carried out by a technician, not the homeowner.
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Preventive Maintenance & Thermostat Calibration
Thermostat calibration, burner and orifice checks, and hood filter service — the things that drift quietly on a mechanical range long before…
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Diagnostics & Behavior-Based Troubleshooting
Most La Cornue ranges show no error code at all. Diagnosis here means measuring gas pressure, flame quality and oven temperature, then…
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Same-Day Repair
Call before early afternoon and most La Cornue repairs are seen the same day, inside an arrival window you are given up…
Learn more →We Repair Every Major La Cornue Appliance
Select your appliance to see common problems, error codes, and book a technician.
What Your La Cornue Error Code Is Telling You
Most brands in this network show an error code, and their guides explain how to read one. La Cornue is different: on most Château and CornuFé ranges the controls are mechanical, so there is no display and nothing to look up. That is not a gap in this guide — it reflects what La Cornue actually builds. What follows is what an owner can observe instead, and what each observation points to.
- Sparks but will not catch
- IgnitionBurner cap seated wrongly, a fouled igniter, or gas supply to that burner — checked in that order before assuming a part has failed
- Lights, then drops out after a few minutes
- Safety thermocoupleA small, inexpensive part, but only a technician should replace it since it sits beside the gas valve
- Yellow or uneven flame, poor simmer
- Gas mixtureVery often the orifice sizing after a natural-gas-to-propane conversion or a house move, not a worn burner
- Oven bakes unevenly or drifts off the dial
- Thermostat or door sealMeasured against an independent thermometer across the dial’s range, not assumed from a single reading
- Hood pulls less air than it used to
- Filters and duct, then the motorChecked in that order, since saturated filters and a restricted duct explain most weak-extraction calls
6 La Cornue error codes documented on this site, each one written from the manufacturer's own material. Where a code has no published meaning, we say so instead of inventing one.
Because there is no code to read on most of these ranges, the habit that saves an owner a wasted call is different from the rest of this network: describe exactly what you observe — the flame’s color, when the burner drops out, how the oven’s behavior has changed — rather than a code, and have the model, size and fuel type to hand from the plate behind the plinth or inside the oven door frame. Where a model does carry an electronic touch control or induction display, tell us what it actually shows; we will not assume it means the same thing another brand’s code does.
Recognize the Warning Signs
These are the issues we get called about most. If any of this sounds familiar, it is worth a diagnostic visit before the problem gets worse.
Burner sparks continuously but never catches
Turn the knob off rather than leaving it clicking with the gas open. Once it is off, the burner cap is the first thing checked — it seats very easily off-square after cleaning, and that alone stops the spark reaching the gas. See likely causes →
Vaulted oven runs hot or cold against the dial
A mechanical thermostat can drift with age, and the drift is sometimes uneven across the dial’s range rather than a fixed offset. We measure actual cavity temperature at more than one setting rather than assuming a single adjustment fixes it everywhere. See likely causes →
Smell of gas around the range
Leave the controls exactly as they are — do not turn any knob or switch near the appliance. Ventilate the room by opening windows or doors, leave the house, and call from outside it. Gas connection work is technician-only. See likely causes →
Induction zone will not detect a pan, or cuts out mid-cook
Often the pan rather than the zone: an induction base can warp slightly with age and lose contact. If several pans fail on the same zone while others still work on it, the zone or its control board is worth booking a visit for. See likely causes →
Range hood pulling noticeably less air than it used to
Saturated grease filters and a partly restricted duct account for most of this, and both are cheaper to address than the motor. Airflow is checked at the hood and at the outlet before any conclusion is drawn about the fan. See likely causes →
Brass or chrome trim loose, dull, or a knob turning without engaging
Common on coastal properties, where salt air works into trim and connections faster than inland. A loose knob is often just a fixing that has worked free rather than a failed valve underneath it. See likely causes →
Why Homeowners Trust Us With Their La Cornue Appliances
Diagnosed by Behavior, Not a Guess
Most La Cornue ranges show no error code, so we diagnose the way the range actually fails: measured gas pressure, flame quality, oven temperature and continuity, not a code lookup.
Right the First Time
La Cornue identifies most parts by line, size and fuel rather than a generic part number, and many are ordered from France. A wrong diagnosis costs weeks, not just a return visit, so it is confirmed by testing before anything is ordered.
The Price Before We Start
You hear the problem, the reasoning behind it, and the cost before any part is ordered. If a range is not worth repairing, you hear that too.
Cabinetry and Trim Handled With Care
A La Cornue is often built into cabinetry and stonework sized to it exactly, with brass or chrome trim that scratches easily. Moving it and opening it are both planned, not improvised.
See why a La Cornue specialist beats a general repair shop →
Why a La Cornue Specialist Beats a General Repair Shop
A La Cornue specialist focuses exclusively on La Cornue appliances, carries La Cornue-specific parts in every service vehicle, and trains technicians specifically on La Cornue diagnostic procedures. A general repair shop works across dozens of brands and often doesn't stock parts — or carry deep expertise — for a less common model.
| Capability | Us · La Cornue Specialist | General Repair Shop |
|---|---|---|
| La Cornue parts in stock | Always | Sometimes |
| La Cornue-trained technicians | Every tech | Maybe one |
| Knows current + legacy models | Every series | Limited |
| Repair warranty included | 30 days | Varies |
| Background-checked technicians | Required | Varies |
Proudly Serving Five Metro Areas
Every city page below is built for your local address, crew, and response time — not a generic template.
Your La Cornue Appliance Doesn't Have to Wait
Book online in under a minute, or call now and talk to a real technician — not a call center script.
Our technicians specialize in La Cornue appliances and are trained specifically on La Cornue engineering, control boards, and error-code diagnostics, so repairs are faster and more accurate than a generalist visit.
Most requests in Houston, Los Angeles, Miami, New York, and San Diego are scheduled same-day or next-day, depending on your neighborhood and time of day you call.
The diagnostic fee is disclosed upfront when you book and is waived when you approve the repair, so there is never a surprise on your invoice.
Let us know when you book - we will help you understand your options, and if it is more cost-effective to route the claim through La Cornue directly, we will tell you honestly.
Our technicians stock the most common La Cornue parts for your appliance type, so the large majority of repairs are completed in a single visit.
Book online or call in, and a technician arrives in the window we give you. They diagnose the problem on-site, walk you through what is actually wrong, and give you a flat price before any repair starts - nothing happens until you say go.
Every completed repair carries a 30-day workmanship warranty. If the same issue comes back in that window, we return and fix it at no charge. Parts may carry the manufacturer warranty where applicable.
Houston, Los Angeles, Miami, New York, and San Diego, plus the surrounding neighborhoods in each metro. Check your city page for local response times and the specific areas we cover.
Yes - every technician we send is licensed, insured, and background-checked before they are allowed on a job. You can ask to see credentials on arrival.
We are open 7:00 AM - 8:00 PM on weekdays and 8:00 AM - 6:00 PM on Saturdays. Sunday availability is limited to emergency calls only - mention the urgency when you book and we will do what we can.