What Er + number may mean on a La Cornue appliance, the symptoms you might see, safe checks you can perform, and when it is time to call a technician.
Er with a number on a CornuFé induction range is an internal technical fault that cannot be fixed by the owner.
Model compatibility: La Cornue reuses codes across series and model years, so Er + number may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Er followed by a number is an internal technical fault the user cannot rectify.
An Er on the display, followed by a number, means the appliance has developed an internal technical fault. The CornuFé guide states plainly that the user cannot rectify it.
CornuFé induction ranges. The guide is filed as CornuFé 110 Induction, with title text for the CornuFé 44 Induction Range.
Do not try to repair the hob. The guide warns that unqualified people must not interfere with it, because that may cause injury and damage. It says to consult your installer or a qualified repair engineer.
If your La Cornue hob in Los Angeles shows Er, phone (310) 570-2050 to book cooktop repair. Write down the full code with its number, and keep the model number nearby.
Source: CornuFé 44 Induction Range User Guide & Installation Instructions U111136-02a (file named CornuFé 110 Induction Installation User Guide.pdf); La Cornue Albertine 36in Induction Range Installation & User Guide U111110-02a, January 2023 (lacornueusa.com file 449); CornuFé 44 Induction Range User Guide & Installation Instructions U111136-03, January 2023 (lacornueusa.com file 450, listed as CornuFé 110 Induction)
Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
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