What is worth writing down before a visit about E12?

In a ADU, a stockpot was in play while a kettle was coming up; keep E12 with this cooktop rating plate. E12 stays display text on this cooktop; it is not a spare-part name.

Where do I find the model information that belongs with E12?

In a pool house, a grill press was in play during a stir-fry; keep E12 with this cooktop rating plate. E12 stays display text on this cooktop; it is not a spare-part name.

Will this page tell a technician which board to replace for E12?

In a guest house, a grill press was in play after a boil-dry scare; keep E12 with this cooktop rating plate. E12 stays display text on this cooktop; it is not a spare-part name.

La Cornue Cooktop E12 Error Code

If the control on your La Cornue cooktop shows E12, write it down with the rating-plate model before anyone guesses a part. In a terrace, a wok ring was in play after a boil-dry scare; keep E12 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 E12

Appliance Cooktop

Quick answer

E12 on a La Cornue cooktop: record the exact display, model, and ZIP. Not a universal fault map. In a in-law kitchen, a simmer plate was in play after a boil-dry scare; keep E12 with this cooktop rating plate.

Model compatibility: La Cornue reuses codes across series and model years, so E12 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

We do not publish an internal map for E12. In a penthouse, a simmer plate was in play on a quiet morning; keep E12 with this cooktop rating plate. Say whether the control locked or kept chirping after the message. In a ADU, a wok ring was in play after a boil-dry scare; keep E12 with this cooktop rating plate. Record, stop for hazards, then book. In a breakfast bar, a simmer plate was in play after a boil-dry scare; keep E12 with this cooktop rating plate. In a show kitchen, a stockpot was in play on a quiet morning; keep E12 with this cooktop rating plate.

Signs

Symptoms you may notice

Note which zone was on and whether a pan was in place. In a mudroom kitchen, a tea kettle was in play on a quiet morning; keep E12 with this cooktop rating plate while E12 is on the cooktop

Record if a zone stayed hot, went dark, or never started. In a rental suite, a tea kettle was in play while a kettle was coming up; keep E12 with this cooktop rating plate while E12 is on the cooktop

Note which zone was on and whether a pan was in place. In a breakfast bar, a plancha was in play during a stir-fry; keep E12 with this cooktop rating plate while E12 is on the cooktop

Record if a zone stayed hot, went dark, or never started. In a butler pantry, a plancha was in play after a boil-dry scare; keep E12 with this cooktop rating plate while E12 is on the cooktop

Why it happens

Possible causes

Write E12 exactly as the cooktop showed it, including extra icons. In a in-law kitchen, a simmer plate was in play during a stir-fry; keep E12 with this cooktop rating plate

Add the rating-plate model from this cooktop. In a penthouse, a simmer plate was in play after a boil-dry scare; keep E12 with this cooktop rating plate

Say whether the control locked or kept chirping after the message. In a carriage house, a stockpot was in play on a quiet morning; keep E12 with this cooktop rating plate

In a pool cabana, a stockpot was in play while a kettle was coming up; keep E12 with this cooktop rating plate

Keep a photo of the control with your notes. In a mudroom kitchen, a grill press was in play during a stir-fry; keep E12 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.

Try a manufacturer-approved restart only if the booklet describes one. In a ADU, a wok ring was in play after a boil-dry scare; keep E12 with this cooktop rating plate

Turn every zone off and let glass or grates cool before you look closely. In a pool house, a simmer plate was in play after a boil-dry scare; keep E12 with this cooktop rating plate

Do not flood the surface or pry at the control glass. In a guest house, a simmer plate was in play on a quiet morning; keep E12 with this cooktop rating plate

Photograph the display while the characters are still visible. In a scullery, a stockpot was in play while a kettle was coming up; keep E12 with this cooktop rating plate

Safety warning

Important safety warning

Important safety warning.

Do not open internal panels, cut into wiring, or bypass a safety device. In a ADU, a copper bowl was in play after a boil-dry scare; keep E12 with this cooktop rating plate. Stop for smoke, sparks, or a burning smell at the surface. 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 bypass door locks, safety switches, or interlocks. Do not keep operating burners or oven modes if you smell gas. In a in-law kitchen, an empty grate was in play after a boil-dry scare; keep E12 with this cooktop rating plate

Do not keep running the cooktop through a program that immediately fails. In a penthouse, an empty grate was in play on a quiet morning; keep E12 with this cooktop rating plate

Do not order a part from E12 without an on-site confirmation. In a carriage house, a tea kettle was in play while a kettle was coming up; keep E12 with this cooktop rating plate

Do not scrape, paint over, or discard the rating plate. In a pool cabana, a tea kettle was in play during a stir-fry; keep E12 with this cooktop rating plate

Get help

When to call a technician

Book a diagnosis

If hazards appeared with E12, treat that as urgent. Otherwise book when you have the model tag and a photo of the control. In a ADU, a wok ring was in play after a boil-dry scare; keep E12 with this cooktop rating plate.

FAQ

Frequently asked questions

References

Sources & references

Use the documentation supplied with this La Cornue cooktop. In a in-law kitchen, a plancha was in play during a stir-fry; keep E12 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 E12 Error Code

Error code overview

What this code means

Symptoms you may notice

Note which zone was on and whether a pan was in place. In a mudroom kitchen, a tea kettle was in play on a quiet morning; keep E12 with this cooktop rating plate while E12 is on the cooktop

Record if a zone stayed hot, went dark, or never started. In a rental suite, a tea kettle was in play while a kettle was coming up; keep E12 with this cooktop rating plate while E12 is on the cooktop

Note which zone was on and whether a pan was in place. In a breakfast bar, a plancha was in play during a stir-fry; keep E12 with this cooktop rating plate while E12 is on the cooktop

Record if a zone stayed hot, went dark, or never started. In a butler pantry, a plancha was in play after a boil-dry scare; keep E12 with this cooktop rating plate while E12 is on the cooktop

Possible causes

Write E12 exactly as the cooktop showed it, including extra icons. In a in-law kitchen, a simmer plate was in play during a stir-fry; keep E12 with this cooktop rating plate

Add the rating-plate model from this cooktop. In a penthouse, a simmer plate was in play after a boil-dry scare; keep E12 with this cooktop rating plate

Say whether the control locked or kept chirping after the message. In a carriage house, a stockpot was in play on a quiet morning; keep E12 with this cooktop rating plate

In a pool cabana, a stockpot was in play while a kettle was coming up; keep E12 with this cooktop rating plate

Keep a photo of the control with your notes. In a mudroom kitchen, a grill press was in play during a stir-fry; keep E12 with this cooktop rating plate

Safe checks you can make

Try a manufacturer-approved restart only if the booklet describes one. In a ADU, a wok ring was in play after a boil-dry scare; keep E12 with this cooktop rating plate

Turn every zone off and let glass or grates cool before you look closely. In a pool house, a simmer plate was in play after a boil-dry scare; keep E12 with this cooktop rating plate

Do not flood the surface or pry at the control glass. In a guest house, a simmer plate was in play on a quiet morning; keep E12 with this cooktop rating plate

Photograph the display while the characters are still visible. In a scullery, a stockpot was in play while a kettle was coming up; keep E12 with this cooktop rating plate

Important safety warning

Important safety warning.

What not to attempt

Do not bypass door locks, safety switches, or interlocks. Do not keep operating burners or oven modes if you smell gas. In a in-law kitchen, an empty grate was in play after a boil-dry scare; keep E12 with this cooktop rating plate

Do not keep running the cooktop through a program that immediately fails. In a penthouse, an empty grate was in play on a quiet morning; keep E12 with this cooktop rating plate

Do not order a part from E12 without an on-site confirmation. In a carriage house, a tea kettle was in play while a kettle was coming up; keep E12 with this cooktop rating plate

Do not scrape, paint over, or discard the rating plate. In a pool cabana, a tea kettle was in play during a stir-fry; keep E12 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 E12 Error Code

Note which zone was on and whether a pan was in place. In a mudroom kitchen, a tea kettle was in play on a quiet morning; keep E12 with this cooktop rating plate while E12 is on the cooktop

Record if a zone stayed hot, went dark, or never started. In a rental suite, a tea kettle was in play while a kettle was coming up; keep E12 with this cooktop rating plate while E12 is on the cooktop

Note which zone was on and whether a pan was in place. In a breakfast bar, a plancha was in play during a stir-fry; keep E12 with this cooktop rating plate while E12 is on the cooktop

Record if a zone stayed hot, went dark, or never started. In a butler pantry, a plancha was in play after a boil-dry scare; keep E12 with this cooktop rating plate while E12 is on the cooktop

Write E12 exactly as the cooktop showed it, including extra icons. In a in-law kitchen, a simmer plate was in play during a stir-fry; keep E12 with this cooktop rating plate

Add the rating-plate model from this cooktop. In a penthouse, a simmer plate was in play after a boil-dry scare; keep E12 with this cooktop rating plate

Say whether the control locked or kept chirping after the message. In a carriage house, a stockpot was in play on a quiet morning; keep E12 with this cooktop rating plate

In a pool cabana, a stockpot was in play while a kettle was coming up; keep E12 with this cooktop rating plate

Keep a photo of the control with your notes. In a mudroom kitchen, a grill press was in play during a stir-fry; keep E12 with this cooktop rating plate

Try a manufacturer-approved restart only if the booklet describes one. In a ADU, a wok ring was in play after a boil-dry scare; keep E12 with this cooktop rating plate

Turn every zone off and let glass or grates cool before you look closely. In a pool house, a simmer plate was in play after a boil-dry scare; keep E12 with this cooktop rating plate

Do not flood the surface or pry at the control glass. In a guest house, a simmer plate was in play on a quiet morning; keep E12 with this cooktop rating plate

Photograph the display while the characters are still visible. In a scullery, a stockpot was in play while a kettle was coming up; keep E12 with this cooktop rating plate

Important safety warning.

Do not bypass door locks, safety switches, or interlocks. Do not keep operating burners or oven modes if you smell gas. In a in-law kitchen, an empty grate was in play after a boil-dry scare; keep E12 with this cooktop rating plate

Do not keep running the cooktop through a program that immediately fails. In a penthouse, an empty grate was in play on a quiet morning; keep E12 with this cooktop rating plate

Do not order a part from E12 without an on-site confirmation. In a carriage house, a tea kettle was in play while a kettle was coming up; keep E12 with this cooktop rating plate

Do not scrape, paint over, or discard the rating plate. In a pool cabana, a tea kettle was in play during a stir-fry; keep E12 with this cooktop rating plate

Book a diagnosis

Seeing this code on your La Cornue appliance?

Cooktop Repair

La Cornue Cooktop E01 Error Code

La Cornue Cooktop E02 Error Code

La Cornue Cooktop E03 Error Code

01 What is worth writing down before a visit about E12?

02 Where do I find the model information that belongs with E12?

03 Will this page tell a technician which board to replace for E12?

Ready to restore your La Cornue appliance?

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