Diagnostic visit
from $95
Credited toward the repair. On a make with three codes in its entire documentation, this is where the information comes from — measurement rather than elimination.
Miami-Dade · Broward · Palm Beach
La Cornue repair in Miami, on a range that was built to order in France.
No two of these are quite the same appliance. A Château is assembled from choices somebody made at order time — which oven is gas and which is electric, whether the top carries a French top, a lava-rock grill, induction or a teppanyaki plate, which of about fifty enamels, which trim metal — and it arrives in a crate that can weigh 1,320 lb. That does not change what fails. It changes what a technician has to know before arriving, which is why we ask for the model code and the top configuration first.
- 5 appliance types, which is all this make builds
- 26 jobs with a published figure
- 47 model codes from the maker's own price list
- from $95 diagnostic, credited to the repair
What we repair
5 appliances, and not one of them is a refrigerator
La Cornue builds cooking appliances and nothing else — no refrigeration, no laundry, no dishwasher, no microwave. What it does build is a range, the ovens inside it, the cooktop on top of it, the same top sold on its own as a rangetop, and the hood over it — and this site covers those five and stops. A repair company advertising La Cornue refrigeration would be telling you something untrue before it arrived.
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Dual fuel · gas · all-induction — Château, Châtelet, Castel, Grand Palais, CornuFé Ranges
The range is what La Cornue makes, and everything else in the line exists around it. A Château is built to order in France, arrives in a crate weighing over half a ton, and is assembled from parts a customer chose one at a time: which oven is gas and which is electric, whether the top carries a French top, a lava-rock grill, induction or a teppanyaki plate, which of about fifty enamels, which trim metal. Two of them are almost never identical. That is the first thing a repair on one has to take seriously — the model number tells you the size, and the configuration code tells you what is actually under the lids.
- Dual fuel, all gas or all induction — three different ranges, three parts lists
- The configuration code, not just the model, decides what is on the top
- Made-to-order enamel and trim are part of the job, not an extra
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Vaulted ovens and convection ovens — gas, electric, and the Tourelle wall oven Ovens
There are three different ovens on this make and they fail in three different ways. The vaulted gas oven cooks by radiant heat inside a sealed dome and has an electric broiler over it. The vaulted electric oven sits on the other side of the same range. And since 2025 there is a standalone one: the Château Tourelle, a fully electric multifunction wall oven in 60 and 75 centimeter widths, built to sit in a cabinet run next to a Château cooktop. Which of the three you have decides everything about the repair.
- Vaulted gas, vaulted electric and the electric Tourelle wall oven
- Gas ovens carry an electric broiler — browning and baking can fail separately
- Thermostat drift is measured against a probe, never adjusted by feel
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Brass gas burners · plaque coup de feu · lava-rock grill · induction · teppanyaki Cooktops and rangetops
A La Cornue cooktop is a set of modules chosen at order time and dropped into a stainless frame: brass gas burners at 17,000 and 7,500 BTU, a 22,000 BTU power burner, the cast-iron plaque coup de feu heated by a single burner underneath, a lava-rock grill, ceramic-glass induction zones, an electric teppanyaki plate. This is the top of a range, and each module is a different repair. Sold on its own without ovens beneath it, the same top is a rangetop, and it has its own page.
- Gas, induction, French top, grill and teppanyaki modules on one frame
- Induction is the only half of this line that shows a code — E2, U400, Er
- A cracked glass hob is disconnected first and diagnosed second
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T40 to T48 · 200 mm into the counter · the same modules, no ovens beneath Rangetops
A rangetop is the top half of a La Cornue sold in its own right: the same brass burners, the same plaque coup de feu, the same grill, induction and teppanyaki modules, in a stainless frame 200 mm deep that drops into a counter with nothing underneath it. T40 through T48, from 600 to 1800 mm wide. Every cooktop repair applies to it and no oven repair does — which makes it the simplest appliance in the line and the one most often confused with the range on a booking.
- T40 to T48 — the same configuration codes as the range
- No ovens, no oven thermostats, no door seals
- Much lighter than a range, so the one job that prices weight rarely applies
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Château motorized hoods H11–H20 · island hoods · inserts · CornuFé Cascade, Euclid, Loge, Marquee Range hoods
The hood over a La Cornue is not an accessory bought to match. A motorized Château hood starts at $17,400 for the 90 and runs past $25,000 for the Grand Palais 180, it is made in the same enamels and trims as the range, and it does real work: a 600 CFM blower on a four-speed variable motor, baffle filters with a grease capture system, three 20-watt lights and a remote. When one stops, the kitchen it was built for stops working properly.
- Motorized Château hoods, island hoods and inserts, plus the CornuFé collection
- 600 CFM blower, four-speed variable motor, baffle filters, remote control
- A hood is finished to match the range — the enamel is part of the repair
South Florida
The climate is part of the diagnosis.
- Salt air on brass and copper Polished brass on these ranges is often natural, uncoated metal that is meant to patina, and a coastal kitchen with the windows open will do a season's worth in a month. That is maintenance rather than repair — and knowing which of your trims is clear-coated matters before anybody takes a polish to a handrail, because removing lacquer cannot be undone.
- Humidity on a spark electrode Brass burners come apart for cleaning, which is one of the pleasures of owning one, and they go back wet. At eighty per cent humidity a splashed electrode can take a day to dry, and in the meantime the burner clicks and does nothing. It is the single most common finding on a burner call in this city.
- Induction electronics in a closed cabinet The one error code this make documents for overheating, E2, is about ventilation before it is about a component — the maker says so itself. Ten years of drawers fitted, cabinets closed in and pans stored under a cooktop is how a generator loses the air it was specified with, in a room that is already warm.
- Ranges that changed fuel or changed house A yellow flame on every burner is almost always a conversion done with approximate parts, or a range plumbed for one fuel and fed the other. La Cornue specifies fuel at order time and publishes a conversion procedure with its own parts set. Neither travels with the range when it moves.
- A 600 CFM hood against a sealed house The hood over one of these removes a great deal of air, and a tight air-conditioned house has nothing to replace it with. Add a power burner at 22,000 BTU and a lava-rock grill underneath, and baffles saturate faster here than the interval in anybody's head — the fan sounds the same and the kitchen smells of last night.
- Houses closed for the season The rotisserie and the grill module are used once or twice a year, and four months shut up in the heat is hard on an idle gas circuit and an idle gearbox. The first anybody finds out is when the bird is already bought — which is why we suggest running them a fortnight early rather than an hour early.
Read the model, because there is almost nothing else to read
3 error codes for the whole make, and 19 things a display shows that are not errors
La Cornue publishes exactly 3 error codes in the whole of its US documentation — E2, U400 and Er with a number — and all three are on the induction hob. The Château installation and user guide has no troubleshooting section at all, and neither does the Tourelle guide. So this site publishes those three and the 19 conditions the maker's own guides describe in words, every one quoted from a document archived before a page was written.
The model code, and the configuration code that came with the order
G45
The letter names the appliance, the number names the size
G is a Château range and T is the matching rangetop, so G45 and T45 are the 150 in its two forms. F is a Tourelle wall oven, C9 and C1 are the CornuFé 90 and 110, and an -I suffix on a CornuFé means induction. H is a hood. The number is the width in centimeters: 48 is the 180, 45 the 150, 40 the 60.
K3
The configuration code decides the parts
N1 to N9 on a 180, L1 to L9 on a 165, K1 to K6 on a 150, E0 to E5 on a 120, C1 to C5 on a 90, B1 to B3 on a 75. It says which modules are under the lids — gas burners, the plaque coup de feu, a lava-rock grill, induction, teppanyaki. Two ranges with one model number can need entirely different parts, and this is what tells them apart.
Castel
Two of the maker's own names for one range
The January 2026 price list calls G40, G47 and G49 the Castel 60, Castel 75 and Grand Castel 90 in its index, and the Château 60, 75 and 90 in its own specification headings on the same pages. Neither name is wrong. This site publishes both, because you will have heard whichever your dealer used.
A make that documents three codes gets three code pages. A sibling network published about 38 invented ones for another brand — symptoms dressed up as codes — and that is the specific thing this site refuses to do. Where the maker says nothing, this site says that the maker says nothing.
What a La Cornue display can show, and which half of the line it belongs to
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E2 · U400 · ErThe only three error codes, and only on the electronic models: induction cooktops and rangetops and the electric and multifunction ovens. E2 is the electronics too hot, U400 is a wrong electrical connection, Er with a number is an internal problem the user cannot clear. -
H · A · L · L1 · L2 · PIndicators, not errors. Residual heat above 140 °F, automatic heat-up, child lock, the low and simmer settings, power boost. An L switched on by a child accounts for a fair share of calls about dead cooktops. -
The pan symbolThe pan detector reporting no pan, or a pan too small for that zone. The published minimums are 4¾ inches at the front left, 5½ at the rear zones and 8¼ in the center — a smaller base will not couple at all, and nothing is broken. -
Nothing at allEvery gas Château, every gas rangetop and both vaulted gas ovens. There is no display, no code and no history, which is normal for this make rather than a sign the electronics are dead.
The things worth knowing before you look anything up
| E2 vs Er | E2 is a protection: the electronics got too hot and shut down, and the maker's first suggestion is ventilation. Er is the appliance saying the problem is inside it and cannot be cleared by the owner. One of them is often free to fix and the other is always a technician. |
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| U400 | The cooker has been incorrectly connected, in the maker's own words. The control switches off after about a second and the code then stays on the display permanently, by design. It is one of very few messages here where the honest answer may be that nothing inside your range is broken. |
| H | Not a code. The zone is still above 140 °F and can burn. It clears itself as the glass cools, and an H on a zone nobody has used is the only version of it worth a call. |
| The oven lamp | The maker disagrees with itself. Its US Albertine guide says to ask for a 40 W 120 V halogen G9; its CornuFé 110 guide prints 230 V for the same lamp, which is a European figure. On a US range it is the 120 V lamp, and the guide states plainly that it is not a warranty part. |
| No code at all | On a gas Château this is the normal state of affairs. An oven that will not light is diagnosed with a clamp meter on the igniter circuit, a millivolt reading on the flame supervision and a functional test on the safety valve — not by reading a display that does not exist. |
Every entry on this site names the document it came from, and 20 of the 22 carry a verbatim quotation from it. A script checks every quotation against the PDFs; the first time it ran it caught three misquotations of our own.
Photograph the display if there is one, then photograph the plate. What helps most on this make is not the display at all: it is the model code and the top configuration code, because those decide which parts travel with us.
Every code, indicator and documented conditionNothing on the display, or an appliance that has none? The whole gas half of this line publishes no code table at all — the Château ranges, the gas rangetops and both vaulted gas ovens — so this site publishes none for them. Start from what the appliance is doing instead.
How a visit runs
Four steps, and you approve the third one
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01
You send the model code and the configuration
On this make those are two halves of one question. A Château 150 in a K3 top and the same range in a K6 need different parts for the same complaint, and a technician who discovers that in your kitchen has discovered it too late. The original invoice or the dealer's order confirmation is more useful here than on any other make, because it carries the configuration and the finish reference.
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02
We arrive with the right parts and a plan for the finish
Igniters, thermocouples, safety valves, elements, thermostats, seals, lamps and the common hardware travel with us. Where a part is a made-to-order item from Saint-Ouen-l'Aumône we say so before the visit rather than after. And the enamel gets covered and supported before anything is undone, because a hammered or bespoke finish cannot be touched up in a kitchen.
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03
Diagnosis on site, then scope and price in writing
The free causes go first because they are free — a pan below the minimum diameter, an H on the display, a dish of water on the shelf to check the range is level, a strip of paper in the door seal, a burner head refitted wet. Then the measurement: gas pressure at the manifold, igniter current, shelf temperature against the dial. Nothing is opened until you have the figure, and the diagnostic comes off it.
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04
The work, and the range left level
Every joint that was opened is leak-tested, every burner relit, both ovens run up, and the range checked for level with water on a shelf if it moved at all. On a range this heavy that is the difference between a repair and a cooking complaint six months later.
What it costs
A starting figure against every job, and never a final price on the phone
Every figure here is a starting point for this equipment in South Florida, researched rather than invented, with the reasoning written down. All 26 of them have a cost page with the evidence beside it.
Hood lighting and remote repair
from $165
The lowest figure on the site, deliberately. Two of the three problems on that page are things you can settle in a minute, and we would rather tell you than take the call.
Hood filter and duct service
from $175
Faded extraction with a healthy-sounding motor is almost never the motor. Baffles are dishwasher safe, so the first fix here is frequently free.
Oven thermostat calibration
from $185
A probe on the shelf through a full cycle. Often adjustment rather than a part — and the before and after figures go in the report, because a corrected oven changes your cooking.
French top service
from $245
A job that exists on no other site in this fleet. The question the visit turns on is crack or crazing, and getting it wrong is expensive in both directions.
Induction glass replacement
from $595
The highest figure here. Ordered against the top's own zone layout rather than a size, with the coils and electronics inspected for what came through the crack.
Every figure here is a starting point and a researched market band for South Florida, never a quote and never an invoice. The exact cost is confirmed after an on-site diagnostic and agreed in writing before anything is opened.
Every figure, and what moves itWhere we work
Miami-Dade, Broward and Palm Beach, end to end
59 cities and neighborhoods, each with a page saying what we actually see there. Tell us where you are when you book and we will come back with the earliest slot we can genuinely keep.
Neighborhoods people ask for by name
Miami-Dade
Coverage is the whole of Miami-Dade, Broward and Palm Beach — the pages below are the places people search for by name, not the edge of where we drive.
The model code, and a sentence about what it is doing.
Add the top configuration code if the paperwork survives, the finish name, and a photograph of anything the display is showing. Between them we can usually name a likely part before anybody sets off — and you get the scope and the price in writing before anything is opened.
This article is based on:
- Official manufacturer documentation
- Internal repair procedures
- Technician repair history
- Company quality standards
Before you call
The questions we are asked most
One oven works and the other does not. Is that one repair or two?
Usually two, because on most of this line the two ovens are not the same appliance. A Château 120 and everything above it is dual-fuel by design: a vaulted gas oven with an electric broiler on one side, a vaulted electric oven on the other. They share a cabinet, a control panel and nothing else. So the first question on the phone is which door you opened. The exception is a range ordered with an all-induction top, where the maker's own order form forces both ovens to be electric.
My oven will not light and there is no error message.
There is no error message because a Château gas oven has nothing to print one with, and that is normal rather than a sign the electronics are dead — the maker's own guide for these ranges has no troubleshooting section at all. The diagnosis is a current measurement on the igniter, because the safety valve opens when the igniter draws enough amps and not when it looks bright. Two attempts and then stop: a sealed vaulted cavity is not somewhere to leave unburnt gas.
What is the E2 on my induction hob?
One of only three codes La Cornue documents anywhere. It means the electronic unit under the hob is too hot, and the maker's own first suggestion is not a part — it is to check the installation and whether there is sufficient ventilation, with a pan boiled dry as the second cause. So look in the cabinet under the cooktop before anybody quotes for a board. What we will not do is clear it and hand the range back, because repeated overheating is what eventually destroys the board the code is protecting.
Why is there no refrigerator or dishwasher on this site?
Because La Cornue does not build one. It makes ranges, the vaulted ovens inside them, rangetops and hoods, and this site covers those 5 and stops. There are 47 model pages here, every code taken from the maker's own January 2026 price list and specification sheets — and nothing outside them.
Will you move my range to work on it?
Almost never, and that is by design rather than reluctance: these are built to be serviced from the front, where they stand, for decades. Most of the gas train, the valves, the igniters and the cooktop modules are reached without the range moving at all. A Grand Palais 180 is about 710 lb uncrated, so when something genuinely does require access from behind it is a planned job with enough people and the right equipment — and the range is re-leveled and proved afterwards.
Are you connected to La Cornue?
No. We are an independent repair company working in Miami, not affiliated with, authorized by or endorsed by any manufacturer, and we warrant our own workmanship. What we have is 21 symptom pages and 22 code and condition pages, every one of the latter read out of a La Cornue installation or user guide and naming the document it came from.