Where do I find the model information that belongs with E05?

In a pool house, a plancha was in play during a stir-fry; keep E05 with this cooktop rating plate. E05 stays display text on this cooktop; it is not a spare-part name.

Will this page tell a technician which board to replace for E05?

In a guest house, a plancha was in play after a boil-dry scare; keep E05 with this cooktop rating plate. E05 stays display text on this cooktop; it is not a spare-part name.

La Cornue Cooktop E05 Error Code

This page is about the E05 message on a La Cornue cooktop: what to capture, what to stop for, and what helps a visit. In a basement kitchenette, a wok ring was in play after a boil-dry scare; keep E05 with this cooktop rating plate.

Book a Repair (310) 570-2050

Reviewed by Elena Voss · Last reviewed September 5, 2026

Written by Elena Voss Published September 5, 2026 Technically reviewed September 5, 2026

Error code E05

Appliance Cooktop

Quick answer

La Cornue cooktop message E05. Write what you see; do not assume one failed part. In a tasting kitchen, a simmer plate was in play after a boil-dry scare; keep E05 with this cooktop rating plate.

Model compatibility: La Cornue reuses codes across series and model years, so E05 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.

Plain language

What this code means

E05 is the string this La Cornue cooktop showed. In a courtyard, a simmer plate was in play on a quiet morning; keep E05 with this cooktop rating plate. In a penthouse, a wok ring was in play after a boil-dry scare; keep E05 with this cooktop rating plate. Note which zone was on and whether a pan was in place. In a scullery, a simmer plate was in play after a boil-dry scare; keep E05 with this cooktop rating plate. In a galley, a simmer plate was in play on a quiet morning; keep E05 with this cooktop rating plate.

Signs

Symptoms you may notice

Write whether the cooktop was gas, induction, or another surface type if you know it. In a tasting kitchen, a plancha was in play during a stir-fry; keep E05 with this cooktop rating plate while E05 is on the cooktop

Say whether the control locked or kept chirping after the message. In a courtyard, a plancha was in play after a boil-dry scare; keep E05 with this cooktop rating plate while E05 is on the cooktop

Write whether the cooktop was gas, induction, or another surface type if you know it. In a rooftop kitchen, a wok ring was in play on a quiet morning; keep E05 with this cooktop rating plate while E05 is on the cooktop

Why it happens

Possible causes

Write E05 exactly as the cooktop showed it, including extra icons. In a butler pantry, a simmer plate was in play on a quiet morning; keep E05 with this cooktop rating plate

Add the rating-plate model from this cooktop. In a farmhouse, a stockpot was in play while a kettle was coming up; keep E05 with this cooktop rating plate

Note which zone was on and whether a pan was in place. In a galley, a stockpot was in play during a stir-fry; keep E05 with this cooktop rating plate

In a basement kitchenette, a grill press was in play after a boil-dry scare; keep E05 with this cooktop rating plate

Before you call

Safe checks you can make

These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.

Turn every zone off and let glass or grates cool before you look closely. In a pool cabana, a stockpot was in play while a kettle was coming up; keep E05 with this cooktop rating plate

Do not flood the surface or pry at the control glass. In a mudroom kitchen, a grill press was in play during a stir-fry; keep E05 with this cooktop rating plate

Photograph the display while the characters are still visible. In a rental suite, a grill press was in play after a boil-dry scare; keep E05 with this cooktop rating plate

Safety warning

Important safety warning

Important safety warning.

Internal covers, terminal blocks, and locked doors stay closed at home. In a chef line, a wok ring was in play during a stir-fry; keep E05 with this cooktop rating plate. If you smell gas, leave the area and contact the gas provider. If you smell gas, do not operate switches; leave and contact the gas provider and a qualified technician. If you see smoke, sparks, or a burning smell, stop.

Please avoid

What not to attempt

Do not open internal panels or touch high-voltage terminals. Do not keep operating burners or oven modes if you smell gas. In a terrace, a plancha was in play while a kettle was coming up; keep E05 with this cooktop rating plate

Do not bypass door locks, safety switches, or interlocks. In a in-law kitchen, a wok ring was in play during a stir-fry; keep E05 with this cooktop rating plate

Do not keep running the cooktop through a program that immediately fails. In a penthouse, a wok ring was in play after a boil-dry scare; keep E05 with this cooktop rating plate

Get help

When to call a technician

Book a diagnosis

If E05 is still on the La Cornue cooktop after a documented restart, or you are unsure, book a visit with the exact display, rating-plate model, and ZIP. In a penthouse, a wok ring was in play after a boil-dry scare; keep E05 with this cooktop rating plate.

FAQ

Frequently asked questions

References

Sources & references

Display messages for a cooktop belong in the booklet that shipped with the appliance. In a tasting kitchen, a copper bowl was in play while a kettle was coming up; keep E05 with this cooktop rating plate.

About the author

Elena Voss

Independent content specialist

Elena Voss is the content specialist behind La Cornue appliance service guides. Elena researches common La Cornue appliance faults, translates technical service information into plain language, and works…

Areas of expertise

Château® ranges
CornuFé® ranges
Château® ranges
Ventilation hoods
Ovens & cooktops
Error-code diagnostics

Editorial responsibilities

Writes appliance guides and error-code explanations, coordinates technical review with experienced technicians, and updates content when guidance or products change.

Profile last reviewed September 5, 2026

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La Cornue Cooktop E05 Error Code

Error code overview

What this code means

Symptoms you may notice

Write whether the cooktop was gas, induction, or another surface type if you know it. In a tasting kitchen, a plancha was in play during a stir-fry; keep E05 with this cooktop rating plate while E05 is on the cooktop

Say whether the control locked or kept chirping after the message. In a courtyard, a plancha was in play after a boil-dry scare; keep E05 with this cooktop rating plate while E05 is on the cooktop

Write whether the cooktop was gas, induction, or another surface type if you know it. In a rooftop kitchen, a wok ring was in play on a quiet morning; keep E05 with this cooktop rating plate while E05 is on the cooktop

Possible causes

Write E05 exactly as the cooktop showed it, including extra icons. In a butler pantry, a simmer plate was in play on a quiet morning; keep E05 with this cooktop rating plate

Add the rating-plate model from this cooktop. In a farmhouse, a stockpot was in play while a kettle was coming up; keep E05 with this cooktop rating plate

Note which zone was on and whether a pan was in place. In a galley, a stockpot was in play during a stir-fry; keep E05 with this cooktop rating plate

In a basement kitchenette, a grill press was in play after a boil-dry scare; keep E05 with this cooktop rating plate

Safe checks you can make

Turn every zone off and let glass or grates cool before you look closely. In a pool cabana, a stockpot was in play while a kettle was coming up; keep E05 with this cooktop rating plate

Do not flood the surface or pry at the control glass. In a mudroom kitchen, a grill press was in play during a stir-fry; keep E05 with this cooktop rating plate

Photograph the display while the characters are still visible. In a rental suite, a grill press was in play after a boil-dry scare; keep E05 with this cooktop rating plate

Important safety warning

Important safety warning.

What not to attempt

Do not open internal panels or touch high-voltage terminals. Do not keep operating burners or oven modes if you smell gas. In a terrace, a plancha was in play while a kettle was coming up; keep E05 with this cooktop rating plate

Do not bypass door locks, safety switches, or interlocks. In a in-law kitchen, a wok ring was in play during a stir-fry; keep E05 with this cooktop rating plate

Do not keep running the cooktop through a program that immediately fails. In a penthouse, a wok ring was in play after a boil-dry scare; keep E05 with this cooktop rating plate

When to call a technician

Book a diagnosis

Seeing this code on your La Cornue appliance?

Frequently asked questions

Sources & references

Ready to restore your La Cornue appliance?

Tell us what’s wrong — we’ll take it from there

La Cornue Cooktop E05 Error Code

Write whether the cooktop was gas, induction, or another surface type if you know it. In a tasting kitchen, a plancha was in play during a stir-fry; keep E05 with this cooktop rating plate while E05 is on the cooktop

Say whether the control locked or kept chirping after the message. In a courtyard, a plancha was in play after a boil-dry scare; keep E05 with this cooktop rating plate while E05 is on the cooktop

Write whether the cooktop was gas, induction, or another surface type if you know it. In a rooftop kitchen, a wok ring was in play on a quiet morning; keep E05 with this cooktop rating plate while E05 is on the cooktop

Write E05 exactly as the cooktop showed it, including extra icons. In a butler pantry, a simmer plate was in play on a quiet morning; keep E05 with this cooktop rating plate

Add the rating-plate model from this cooktop. In a farmhouse, a stockpot was in play while a kettle was coming up; keep E05 with this cooktop rating plate

Note which zone was on and whether a pan was in place. In a galley, a stockpot was in play during a stir-fry; keep E05 with this cooktop rating plate

In a basement kitchenette, a grill press was in play after a boil-dry scare; keep E05 with this cooktop rating plate

Turn every zone off and let glass or grates cool before you look closely. In a pool cabana, a stockpot was in play while a kettle was coming up; keep E05 with this cooktop rating plate

Do not flood the surface or pry at the control glass. In a mudroom kitchen, a grill press was in play during a stir-fry; keep E05 with this cooktop rating plate

Photograph the display while the characters are still visible. In a rental suite, a grill press was in play after a boil-dry scare; keep E05 with this cooktop rating plate

Important safety warning.

Do not open internal panels or touch high-voltage terminals. Do not keep operating burners or oven modes if you smell gas. In a terrace, a plancha was in play while a kettle was coming up; keep E05 with this cooktop rating plate

Do not bypass door locks, safety switches, or interlocks. In a in-law kitchen, a wok ring was in play during a stir-fry; keep E05 with this cooktop rating plate

Do not keep running the cooktop through a program that immediately fails. In a penthouse, a wok ring was in play after a boil-dry scare; keep E05 with this cooktop rating plate

Book a diagnosis

Seeing this code on your La Cornue appliance?

Cooktop Repair

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01 Where do I find the model information that belongs with E05?

02 Will this page tell a technician which board to replace for E05?

Ready to restore your La Cornue appliance?

Tell us what’s wrong — we’ll take it from there