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La Cornue Dishwasher E21 Error Code

E21 on a La Cornue dishwasher is generally linked to a possible motor or movement-related problem. This guide gives a plain-language overview, the symptoms you might notice, safe checks you can perform, and when it is best to call a technician — with a reminder that exact behavior varies by model.

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Reviewed by Daniel Reeves · Last reviewed August 12, 2026

At a glance

Error code overview

Daniel Reeves Written by Daniel Reeves Appliance Repair Content Specialist Published August 12, 2026 Technically reviewed August 12, 2026

Content status: Verified

Dishwasher
Error code E21
Appliance Dishwasher
Quick answer

E21 — commonly associated with a motor issue on a La Cornue dishwasher. Meaning can vary by model; verify before relying on it.

Model compatibility: La Cornue reuses codes across series and model years, so E21 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

On many La Cornue dishwasher models, the E21 code is commonly associated with a possible motor or movement-related problem. The exact meaning can differ between appliance series and model years, so treat this as general guidance and confirm it against your specific model’s documentation before acting.

Signs

Symptoms you may notice

01

The dishwasher shows E21 and movement stalls or is noisy

02

The drum or fan doesn’t turn as expected with E21

03

The dishwasher interrupts its cycle when E21 appears

Why it happens

Possible causes

01

An obstruction or imbalance affecting movement

02

A motor, belt or bearing issue (varies by model)

03

A control or sensor related to the motor

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 load is balanced and not jammed

02

Check for visible obstructions around the drum or impeller

03

Perform a manufacturer-approved restart

04

Record the full model number before contacting a technician

Safety warning

Important safety warning

01

Important safety warning.

Do not open internal panels, access high-voltage wiring, or bypass any safety device. If you see smoke, sparks, a burning smell, or water near electrical parts, switch the appliance off at the outlet if it is safe to do so and call a professional.

Please avoid

What not to attempt

01

Do not open internal panels or access high-voltage components

02

Do not bypass door locks, safety switches or interlocks

03

Do not keep running the appliance if there is water near electrical parts, a burning smell or sparks

Get help

When to call a technician

01

Book a diagnosis

If E21 persists after the safe checks above, or you are unsure at any point, book a diagnosis. A technician can confirm what E21 means on your specific model and resolve the underlying cause safely.

Get started

Seeing this code on your La Cornue appliance?

Book an authorized La Cornue service visit for a clear estimate and approval before any repair. Factory-trained technicians, clear diagnostics, and workmanship coverage on completed repairs.

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Where it points

Likely related component

01

Likely related component

Often related to the drive or circulation motor (varies by model).

FAQ

Frequently asked questions

References

Sources & references

  • La Cornue appliance user manual — error/display messages section
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