Error code
La Cornue cooktop: the burner lights and dies when you let go, which is the safety device doing its job
La Cornue — an indicator rather than a code. Each cooktop burner has a safety device that stops the flow of gas if the flame goes out, and lighting a burner means overriding it by holding the control knob in long enough for the flame sensor to heat up and take over.
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What we can confirm
Signal Burner goes out when the knob is released, from the manufacturer's own documentation
This code has no number, because this equipment has no display to put one on. The appliance signals it instead — an alarm, a symbol or a pattern of lights — and what it means is recorded in the documentation that ships with it.
The signal
Burner goes out when the knob is released
Each cooktop burner has a safety device that stops the flow of gas if the flame goes out, and lighting a burner means overriding it by holding the control knob in long enough for the flame sensor to heat up and take over. So a burner that dies the moment you release the knob is not necessarily broken — the maker's own first suggestion is to turn the control off, wait a minute, and try again holding the knob in slightly longer. What is not normal is a burner that will not hold however long you hold it, and that is a sensor or a valve.
or call (305) 614-3699
What it narrows down to
the flame safety device is not holding in
Diagnostic
From $95, credited to the repair
On the same appliance
What else belongs to the cooktops and rangetops
On this make a code belongs to the appliance rather than to a product line. These are the other conditions this machine can display, and the models that can show this one — a display often has more than one thing to say, and the model number decides what any of it costs to put right.
Other codes this appliance can display
the hob electronics are too hot and have shut down
the electrical connection is wrong and the hob has latched off
an internal problem that needs a technician
no display, which the maker puts down to the supply
the protective device keeps operating and that is a test, not a reset
it will not switch on, and both of the maker's checks are upstream
the zone is still hot — an indicator, not a problem
the zone cannot see a suitable pan, and pan size is the usual reason
disconnect it immediately and do not use it until it is repaired
pan noise on induction is normal at high power
scratches do not come out, and pan bases are usually the cause
usually a burner head refitted wrongly or wet after cleaning
The same digits mean different things on different equipment. Search the full code list
In more detail
About La Cornue cooktop: the burner lights and dies when you let go, which is the safety device doing its job
What the appliance is actually doing
Each cooktop burner has a safety device that stops the flow of gas if the flame goes out, and lighting a burner means overriding it by holding the control knob in long enough for the flame sensor to heat up and take over. So a burner that dies the moment you release the knob is not necessarily broken — the maker's own first suggestion is to turn the control off, wait a minute, and try again holding the knob in slightly longer. What is not normal is a burner that will not hold however long you hold it, and that is a sensor or a valve.
Quoted rather than interpreted
If, when you let go of the control knob, the burner goes out, the safety device has not held in. Turn the control to the off position and wait one minute, then try again this time holding in the control knob for slightly longer.
From the CornuFé 110 dual fuel installation and user guide (U107101-21e), in a User Guide & Service Manual downloaded from La Cornue's own site. Nothing on this page is decoded beyond what that sentence says.
Which machines this one applies to
La Cornue gas and dual fuel ranges. La Cornue publishes three codes in the whole of its US documentation and its Château guide carries no troubleshooting section, so a behavior missing from this archive is not proof that your appliance cannot do it — the maker simply never wrote a table for it. What its guides do document, they document in sentences, and those are on this site under the maker's own wording. The model number, and which top the range was ordered with, settle what any of it means.
What to do about it
- Turn the control fully off and wait a minute. This is the maker's own instruction and it is there for a reason.
- Try again, holding the knob in for a few seconds longer than usual.
- Time how long it holds after release. Instantly, or five to ten seconds, points at different parts.
- Try another burner. If every burner behaves this way the supply or the manifold is involved.
- Stop after two or three attempts. Every unsuccessful try is unlit gas in the room.
Where this goes next
The job this usually becomes is gas valve and thermocouple repair, and every one of those pages carries a starting figure and the reasons that move it. If it turns out to be nothing — and on this make a real share of these are modes rather than problems — the visit ends there and you pay the diagnostic and nothing else, or call (305) 614-3699 and describe what the display is doing before booking anything.
This article is based on:
- Official manufacturer documentation
- Internal repair procedures
- Technician repair history
- Company quality standards