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La Cornue Appliance Care & Repair Guides

Practical, expert guidance on troubleshooting, maintenance, and safety for your La Cornue appliances — written by the technicians who fix them.

Safety & Risks

The Manual Gas Shutoff Valve on a La Cornue Range: What It Does and When to Use It

Beyond the knobs on the front of a La Cornue range, a manual stop valve controls gas to the oven…

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Troubleshooting

Castel 60 Touch Controls Not Responding: What to Check First

The Castel 60 replaces the knobs that control every other current La Cornue range with a touch-sensitive panel, and a…

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Safety & Risks

Ventilation and Clearance to Plan Before Installing a La Cornue Range

Beyond the range hood itself, adequate room ventilation and physical clearance around the range are worth settling before installation, not…

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Maintenance & Care

Preventing Scratches and Marks on a La Cornue Induction Glass Surface

The ceramic glass surface over a La Cornue induction zone is durable but not scratch-proof, and how pans are handled…

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Troubleshooting

A Gas Oven Flame That Turns On and Off During Cooking: Normal Behavior, Explained

On a gas vaulted oven, the flame is designed to ignite and shut off automatically to hold a set temperature…

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Safety & Risks

Anti-Tip Brackets and Leveling: Safety Basics for a Heavy La Cornue Range

A range weighing several hundred pounds needs to be both level and secured against tipping — two separate installation details…

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Common Problems

When the Oven Grill Heats but the Oven Does Not (or the Other Way Around)

A La Cornue vaulted oven’s grill and its main bake heat are controlled separately, on both gas and electric versions…

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Troubleshooting

How Long Should a La Cornue Vaulted Oven Take to Preheat?

A vaulted oven that suddenly takes far longer to reach cooking temperature than it used to is a useful early…

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Maintenance & Care

Caring for a La Cornue Teppanyaki Plate Between Repairs

A well-seasoned teppanyaki plate cooks more evenly and resists sticking and rust — and knowing the difference between plate wear…

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Troubleshooting

What to Expect From a La Cornue Service Visit

Because most La Cornue ranges have no error codes to read, a service visit is built around measurement and a…

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Maintenance & Care

Choosing a Château Size With Service Access in Mind

La Cornue’s Château line runs from compact configurations up through the two-oven Grand Palais 180, and the size you choose…

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Maintenance & Care

Planning Ahead for a Propane Conversion or a Move to Altitude With a La Cornue Range

Converting a La Cornue between fuels, or moving one to a higher altitude, goes much more smoothly when the parts…

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Troubleshooting

Gas Pressure and Regulators: The Basics Behind a La Cornue Range’s Flame

A weak flame at every burner at once, rather than just one, usually points upstream — toward gas pressure or…

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Safety & Risks

Child Lock and Other Safety Indicators on a La Cornue Induction Hob

A La Cornue induction hob’s child lock, keep-warm, and boost functions are built-in safety and convenience features — and knowing…

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Troubleshooting

Induction Cookware Compatibility and Normal Operating Noise on a La Cornue Hob

An induction zone that will not heat, or that hums louder than expected, is often about the pan rather than…

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Maintenance & Care

Getting the Most From a La Cornue French Top: Everyday Use and Care

The French top rewards a bit of technique — understanding its heat zones and treating the plaque gently extends its…

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Common Problems

When a La Cornue Warming Drawer Stops Heating

The electric warming drawer built into some Château models has its own thermostat and heating circuit, separate from the vaulted…

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Troubleshooting

The Electric Oven Selector Switch: A Common Reason a La Cornue Oven Seems Weak

On a La Cornue electric vaulted oven, a selector switch left in the wrong position can look exactly like a…

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Maintenance & Care

Cooking Odors Lingering Longer Than They Should on a La Cornue Hood

A kitchen that still smells like last night’s dinner the next morning usually means the hood was not given enough…

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Troubleshooting

La Cornue Hood Remote Not Responding: Checking the Remote Before the Hood

The remote control on a La Cornue hood is an optional accessory separate from the hood’s own control panel, and…

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Maintenance & Care

Replacing Hood Lights on a La Cornue Range Hood the Right Way

One dark bulb in a La Cornue hood is worth replacing right away — La Cornue’s own guidance warns that…

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Maintenance & Care

When a La Cornue Hood Filter Will Not Stay Seated: The Magnetic Closure, Not the Suction

A filter that sags, rattles, or drops when the hood is running is usually about the magnetic closure holding it…

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Maintenance & Care

La Cornue’s Simmering Plate and Joker Plate: What Each One Does and How to Tell a Failure From Normal Wear

The reversible Joker plate and the dedicated simmering plate are two different accessories on a La Cornue cooktop, and they…

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Troubleshooting

Igniter Clicking After a Spill: Why a Wet La Cornue Burner Will Not Light

A burner that suddenly starts clicking without lighting right after a boil-over or a cleaning session is very often simply…

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Troubleshooting

Oven Never Reaches Full Temperature: Gas vs Electric La Cornue Vaulted Ovens

An oven that tops out well below its set temperature points at different parts depending on whether the vaulted oven…

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Troubleshooting

La Cornue Installation Problems That Look Like a Range Has Failed

Some of the most convincing “broken range” complaints on a brand-new or recently reinstalled La Cornue turn out to be…

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Maintenance & Care

How Long La Cornue Parts From France Take, and How to Plan Around It

Not every part on a La Cornue range comes from the same place — and knowing which category a part…

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Troubleshooting

Gas, Dual-Fuel, or Induction: How Service Differs on a La Cornue Range

A La Cornue range can be ordered as all-gas, dual-fuel, or with an induction cooktop, and each of those configurations…

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Common Problems

Château vs CornuFé: What the Difference Means for Repair and Ownership

Château and CornuFé are both La Cornue ranges, but they are built to different philosophies — one built around near-total…

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Safety & Risks

What to Know Before Moving a La Cornue Range

A La Cornue range is built from cast construction with a hand-applied enamel finish, which makes moving it a different…

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Common Problems

When a La Cornue Oven Shuts Off Mid-Cook: The High-Limit Switch

An oven that suddenly shuts off in the middle of cooking, rather than simply running hot or cold, is very…

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Troubleshooting

A Sagging or Misaligned Door on a La Cornue Vaulted Oven

A vaulted oven door that no longer sits flush, or that drops slightly when opened, is describing the hinge —…

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Maintenance & Care

Grease Dripping From a La Cornue Hood: What the Filters Are Telling You

Grease that drips from a hood rather than staying captured in the filters is a maintenance sign well before it…

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Common Problems

La Cornue Hood Backdraft Damper Stuck: Why Air Flows the Wrong Way

A backdraft damper that is stuck open or closed can make a perfectly good hood motor look like it has…

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Troubleshooting

La Cornue Hood Blower Vibration: What a Noisy Fan Is Telling You

A La Cornue hood that runs but vibrates, rattles, or hums louder than it used to is usually describing the…

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Maintenance & Care

Moisture Inside a La Cornue Oven After Cleaning: When It Is Normal

Water droplets or a damp cavity right after cleaning a La Cornue vaulted or electric oven usually clear up on…

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Maintenance & Care

Brass and Nickel Trim Care on a La Cornue Range: Preventing Tarnish Before It Sets In

A La Cornue range’s trim — polished brass, brushed nickel, chrome, or copper depending on how it was ordered —…

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Maintenance & Care

Enamel Chipping on a La Cornue Range: What It Means and What It Does Not

A chip in a La Cornue range’s enamel finish is usually cosmetic on its own — but what sits underneath…

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Maintenance & Care

La Cornue Lava-Rock Grill: Clogging, Uneven Heat, and What Maintenance Actually Prevents

The gas lava-rock grill fitted to some Château cooktops depends on the rock bed staying clean — and most of…

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Troubleshooting

La Cornue Teppanyaki Not Heating: Where to Look Before Calling It a Failure

The electric teppanyaki module fitted to some Château cooktops is a different animal from the gas burners around it, and…

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Common Problems

French Top Uneven Heat or a Cracked Plate: Two Different Problems

A French top that heats unevenly, or that has developed a crack, describes two different problems — one about a…

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Common Problems

Spark Module Clicking Continuously After a La Cornue Burner Lights

A burner that lights normally but keeps clicking afterward is describing the spark module, not the flame — and it…

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Troubleshooting

Stiff or Loose Control Knobs: What They Say About the Valve Underneath

A control knob that has gone stiff, loose, or hard to find “off” on is usually describing the valve underneath…

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Maintenance & Care

Yellow Flame and Burner Cleaning on a La Cornue Range

A blue flame with a small yellow tip is normal on a gas burner; a flame that burns yellow through…

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Common Problems

Weak or Flickering Flame on a La Cornue Burner

A La Cornue burner that lights and stays lit but burns weak, uneven, or flickering rarely means the burner has…

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Troubleshooting

Château and CornuFé Hood Lights or Fan Not Responding: What to Check First

A La Cornue hood that will not respond to its speed control, or whose halogen lamps have gone dark, has…

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Maintenance & Care

Why a La Cornue Range Hood Loses Suction Long Before the Motor Fails

Weaker extraction on a Château or CornuFé hood is almost always the filters or the duct, not the motor —…

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Safety & Risks

Flamberge Rôtisserie Safety: Open-Flame Cooking on a La Cornue

The Flamberge pairs a gas burner with a motor-driven spit for open-flame roasting, and that combination means any gas problem…

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Common Problems

French Top, Power Burner, Lava-Rock Grill: Diagnosing Which Part of a La Cornue Cooktop Failed

A La Cornue cooktop is really several different cooking mechanisms sharing one hob, and the useful first question is never…

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Troubleshooting

La Cornue Induction Zone Will Not Detect a Pan: Zone, Board, or Just the Pan?

An induction zone on a La Cornue cooktop that stops recognizing a pan it used to work with is, more…

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Maintenance & Care

Door Seals and Enamel on a La Cornue Vaulted Oven: What Is Cosmetic, What Is Not

A chip in the enamel of a La Cornue vaulted oven usually looks worse than it is. A hardened or…

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Common Problems

Gas Oven Burner Lights, Then Drops Out: The Thermocouple Behind a La Cornue Vaulted Oven

A gas-fired La Cornue vaulted oven that lights and then goes out again after a few minutes is the classic…

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Troubleshooting

La Cornue Vaulted Oven Running Hot or Cold: Reading Thermostat Drift

When a La Cornue vaulted oven starts baking differently than it used to, the cause is very often a mechanical…

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Maintenance & Care

Converting a La Cornue Between Natural Gas and Propane: Why It Is Technician-Only Work

Moving a La Cornue to a property on propane, or the reverse, means refitting the correct orifice at every gas-fed…

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Common Problems

Burner Sparks But Will Not Light on a La Cornue Range: The Cap, Not the Igniter

A La Cornue burner that clicks and sparks without catching is one of the most common calls we get, and…

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Safety & Risks

Gas Smell Near Your La Cornue Range: What To Do Before Calling

A smell of gas around a La Cornue range is not a problem to diagnose over the phone. It is…

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Troubleshooting

Why Most La Cornue Ranges Show No Error Code — And How We Diagnose Them Instead

Look for an error code on a La Cornue and you will usually find nothing to look for. Most Château…

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