Error code
La Cornue induction hob: scratches in the ceramic glass, and what the maker says can and cannot be undone
La Cornue — an indicator rather than a code. The guide is honest about this one: mineral deposits from water or food can be removed with a cleaning cream, but tiny scratches are not removable — they simply become less visible over time as a result of cleaning.
- From $95 diagnostic, credited to the repair
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- OEM parts available on order
- In writing the price, before anything is opened
What we can confirm
Signal Scratched hob glass, 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
Scratched hob glass
The guide is honest about this one: mineral deposits from water or food can be removed with a cleaning cream, but tiny scratches are not removable — they simply become less visible over time as a result of cleaning. Its advice is preventative rather than curative: use the recommended cleaning methods and make sure pan bottoms are smooth and clean. A rough or gritty pan base dragged across ceramic glass is what causes most of this, and it is worth knowing before the surface is marked rather than afterwards.
or call (305) 614-3699
What it narrows down to
scratches do not come out, and pan bases are usually the cause
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
the flame safety device is not holding in
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 induction hob: scratches in the ceramic glass, and what the maker says can and cannot be undone
What the appliance is actually doing
The guide is honest about this one: mineral deposits from water or food can be removed with a cleaning cream, but tiny scratches are not removable — they simply become less visible over time as a result of cleaning. Its advice is preventative rather than curative: use the recommended cleaning methods and make sure pan bottoms are smooth and clean. A rough or gritty pan base dragged across ceramic glass is what causes most of this, and it is worth knowing before the surface is marked rather than afterwards.
Quoted rather than interpreted
Always use the cleaning methods recommended in this guide, and make sure that the pan bottoms are smooth and clean.
From the CornuFé 110 induction installation and user guide (U111136-03, January 2023), 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 induction cooktops and rangetops, and the electric and multifunction ovens. 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
- Check your pan bases. Rough, pitted or gritty bottoms are what scratch ceramic glass.
- Lift pans rather than sliding them, particularly cast iron.
- Use the cleaning products the guide recommends and a cleaning cream for mineral deposits.
- Accept that fine scratches do not come out. The maker says so plainly and anybody promising otherwise is selling something.
- Distinguish a scratch from a crack — a crack is a safety matter and it has its own page.
Where this goes next
The job this usually becomes is diagnostic visit, 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