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La Cornue kitchen

La Cornue Range E20 Error Code

A La Cornue range showing E20 needs notes from the kitchen, not a universal fault name from a website. In a farmhouse, a roasting pan was in play after a power blink; keep E20 with this range rating plate.

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Reviewed by Elena Voss · Last reviewed September 5, 2026

At a glance

Error code overview

Elena Voss Written by Elena Voss Published September 5, 2026 Technically reviewed September 5, 2026
Range
Error code E20
Appliance Range
Quick answer

Seeing E20 on a range? Photograph the control and stop if hazards are present. In a galley, a roasting pan was in play after a power blink; keep E20 with this range rating plate.

Model compatibility: La Cornue reuses codes across series and model years, so E20 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

Start with the live control: E20. Record whether ignition, simmer, or bake heat had already started. In a basement kitchenette, a simmer plate was in play after a power blink; keep E20 with this range rating plate. In a terrace, a roasting pan was in play mid-sear; keep E20 with this range rating plate. Nothing here names a single failed part for every series. In a pool house, a simmer plate was in play late on a weeknight; keep E20 with this range rating plate. In a butler pantry, a simmer plate was in play before guests sat down; keep E20 with this range rating plate.

Signs

Symptoms you may notice

01

Say if the door was open, closed, or being used as a shelf. In a penthouse, a roasting pan was in play mid-sear; keep E20 with this range rating plate while E20 is on the range

02

Write which knob or mode was selected when the control changed. In a carriage house, a simmer plate was in play mid-sear; keep E20 with this range rating plate while E20 is on the range

03

Say if the door was open, closed, or being used as a shelf. In a pool cabana, a simmer plate was in play mid-sear; keep E20 with this range rating plate while E20 is on the range

04

Write which knob or mode was selected when the control changed. In a mudroom kitchen, a wok ring was in play mid-sear; keep E20 with this range rating plate while E20 is on the range

Why it happens

Possible causes

01

Write E20 exactly as the range showed it, including extra icons. In a studio, a griddle bridge was in play during a long braise; keep E20 with this range rating plate

02

Add the rating-plate model from this range. In a show kitchen, a stockpot was in play during a long braise; keep E20 with this range rating plate

03

Record whether ignition, simmer, or bake heat had already started. In a terrace, a stockpot was in play during a long braise; keep E20 with this range rating plate

04

In a in-law kitchen, a Dutch oven was in play late on a weeknight; keep E20 with this range 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.

01

Confirm the control still shows the same characters after it cools. In a rental suite, a fish pan was in play during a long braise; keep E20 with this range rating plate

02

Use only a manufacturer-approved restart from the booklet, if one exists. In a breakfast bar, a tea kettle was in play during a long braise; keep E20 with this range rating plate

03

If it is safe, turn the knobs to off and leave the range to cool. In a butler pantry, a tea kettle was in play during a long braise; keep E20 with this range rating plate

Safety warning

Important safety warning

01

Important safety warning.

If the outlet is wet, skip unplugging and isolate power another safe way or wait for help. In a rental suite, a tea kettle was in play during a long braise; keep E20 with this range rating plate. Stop for smoke, a burning smell, or sparks at the control. 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

01

Do not scrape, paint over, or discard the rating plate. Do not keep operating burners or oven modes if you smell gas. In a studio, a stockpot was in play during a long braise; keep E20 with this range rating plate

02

Do not force a locked door or a jammed control while the range is hot. In a show kitchen, a Dutch oven was in play late on a weeknight; keep E20 with this range rating plate

03

Do not open internal panels or touch high-voltage terminals. In a terrace, a Dutch oven was in play late on a weeknight; keep E20 with this range rating plate

Get help

When to call a technician

01

Book a diagnosis

A diagnosis visit is the right next step if E20 persists, if you cannot safely reach the outlet, or if the range behaves differently after the message. In a terrace, a roasting pan was in play mid-sear; keep E20 with this range rating plate.

Get started

Seeing this code on your La Cornue appliance?

Book a La Cornue service visit for a clear estimate and approval before any repair. Specialist technicians, clear diagnostics, and workmanship coverage on completed repairs.

Book a Repair (310) 570-2050
FAQ

Frequently asked questions

References

Sources & references

  • This archive is observational and does not replace the papers that came with the range. In a galley, a Dutch oven was in play late on a weeknight; keep E20 with this range rating plate.
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