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La Cornue Coffee Machine E01 Error Code

This page is about the E01 message on a La Cornue coffee machine: what to capture, what to stop for, and what helps a visit. In a basement kitchenette, a descaling bottle still sealed was in play before the first cup; keep E01 with this coffee machine 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
Coffee Machine
Error code E01
Appliance Coffee Machine
Quick answer

La Cornue coffee machine message E01. Write what you see; do not assume one failed part. In a tasting kitchen, a milk pitcher was in play before the first cup; keep E01 with this coffee machine rating plate.

Model compatibility: La Cornue reuses codes across series and model years, so E01 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

E01 is the string this La Cornue coffee machine showed. In a courtyard, a milk pitcher was in play before the first cup; keep E01 with this coffee machine rating plate. In a penthouse, a milk pitcher was in play during a brew; keep E01 with this coffee machine rating plate. Note brew, steam, rinse, or standby if those words were on the control. In a scullery, a drip tray was in play while steaming milk; keep E01 with this coffee machine rating plate. In a galley, a water tank was in play after a rinse prompt; keep E01 with this coffee machine rating plate.

Signs

Symptoms you may notice

01

Record whether the tank, tray, or door was recently moved. In a tasting kitchen, a portafilter was in play after a rinse prompt; keep E01 with this coffee machine rating plate while E01 is on the coffee machine

02

Say whether the message returns as soon as a drink is requested. In a courtyard, a portafilter was in play after a rinse prompt; keep E01 with this coffee machine rating plate while E01 is on the coffee machine

03

Record whether the tank, tray, or door was recently moved. In a rooftop kitchen, a drip tray was in play after a rinse prompt; keep E01 with this coffee machine rating plate while E01 is on the coffee machine

Why it happens

Possible causes

01

Write E01 exactly as the coffee machine showed it, including extra icons. In a butler pantry, a portafilter was in play during a brew; keep E01 with this coffee machine rating plate

02

Add the rating-plate model from this coffee machine. In a farmhouse, a drip tray was in play during a brew; keep E01 with this coffee machine rating plate

03

Note brew, steam, rinse, or standby if those words were on the control. In a galley, a drip tray was in play during a brew; keep E01 with this coffee machine rating plate

04

In a basement kitchenette, a water tank was in play during a brew; keep E01 with this coffee machine 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 tank or tray is seated the way the booklet shows, without forcing it. In a pool cabana, a drip tray was in play after a rinse prompt; keep E01 with this coffee machine rating plate

02

Do not open a boiler or unclip internal hoses. In a mudroom kitchen, a water tank was in play after a rinse prompt; keep E01 with this coffee machine rating plate

03

Photograph the exact characters. In a rental suite, a water tank was in play after a rinse prompt; keep E01 with this coffee machine rating plate

Safety warning

Important safety warning

01

Important safety warning.

Internal covers, terminal blocks, and locked doors stay closed at home. In a chef line, a descaling bottle still sealed was in play while steaming milk; keep E01 with this coffee machine rating plate. Stop if water is leaking toward the outlet or a burning smell appears. If water is near electrical parts, do not keep using the appliance. If you see smoke, sparks, or a burning smell, stop.

Please avoid

What not to attempt

01

Do not open internal panels or touch high-voltage terminals. Do not keep running water-using programs if liquid is at the outlet. In a terrace, a water tank was in play during a brew; keep E01 with this coffee machine rating plate

02

Do not bypass door locks, safety switches, or interlocks. In a in-law kitchen, a descaling bottle still sealed was in play before the first cup; keep E01 with this coffee machine rating plate

03

Do not keep running the coffee machine through a program that immediately fails. In a penthouse, a descaling bottle still sealed was in play before the first cup; keep E01 with this coffee machine rating plate

Get help

When to call a technician

01

Book a diagnosis

If E01 is still on the La Cornue coffee machine after a documented restart, or you are unsure, book a visit with the exact display, rating-plate model, and ZIP. In a penthouse, a milk pitcher was in play during a brew; keep E01 with this coffee machine 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

  • Display messages for a coffee machine belong in the booklet that shipped with the appliance. In a tasting kitchen, a portafilter was in play while steaming milk; keep E01 with this coffee machine rating plate.
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Phone (310) 570-2050
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