Does E12 name the same repair on every La Cornue dishwasher?

In a carriage house, a glass on the tines was in play mid-cycle; keep E12 with this dishwasher rating plate. E12 stays display text on this dishwasher; it is not a spare-part name.

What should I do first if E12 appears during cooking or a cycle?

In a pool cabana, a glass on the tines was in play mid-cycle; keep E12 with this dishwasher rating plate. E12 stays display text on this dishwasher; it is not a spare-part name.

Is it safe to ignore E12 if the dishwasher seems to continue working?

In a mudroom kitchen, a bottom rack was in play mid-cycle; keep E12 with this dishwasher rating plate. E12 stays display text on this dishwasher; it is not a spare-part name.

La Cornue Dishwasher E12 Error Code

Use this listing to prepare a dishwasher service request around E12, not to name an internal component. In a tasting kitchen, a detergent cup was in play late after dinner; keep E12 with this dishwasher 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 Dishwasher

Quick answer

E12 on this dishwasher is a clue for diagnosis, not a spare-parts list. In a courtyard, a detergent cup was in play late after dinner; keep E12 with this dishwasher 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

If you opened this page because a La Cornue dishwasher presented E12, stay with facts. In a rooftop kitchen, a silverware basket was in play late after dinner; keep E12 with this dishwasher rating plate. Say whether the message appeared at start, mid-cycle, or after a restart. In a carriage house, a silverware basket was in play mid-cycle; keep E12 with this dishwasher rating plate. In a outdoor kitchen, a crumpled foil ball was in play mid-cycle; keep E12 with this dishwasher rating plate. In a basement kitchenette, a bottom rack was in play after a rinse; keep E12 with this dishwasher rating plate.

Signs

Symptoms you may notice

Note wash, drain, dry, or a pause if the cycle language is visible. In a guest house, a bottom rack was in play late after dinner; keep E12 with this dishwasher rating plate while E12 is on the dishwasher

Write if standing water is visible in the base when it is safe to look. In a scullery, a detergent cup was in play late after dinner; keep E12 with this dishwasher rating plate while E12 is on the dishwasher

Note wash, drain, dry, or a pause if the cycle language is visible. In a outdoor kitchen, a detergent cup was in play late after dinner; keep E12 with this dishwasher rating plate while E12 is on the dishwasher

Write if standing water is visible in the base when it is safe to look. In a chef line, a silverware basket was in play late after dinner; keep E12 with this dishwasher rating plate while E12 is on the dishwasher

Why it happens

Possible causes

Write E12 exactly as the dishwasher showed it, including extra icons. In a courtyard, a detergent cup was in play after a rinse; keep E12 with this dishwasher rating plate

Add the rating-plate model from this dishwasher. In a rooftop kitchen, a silverware basket was in play after a rinse; keep E12 with this dishwasher rating plate

Say whether the message appeared at start, mid-cycle, or after a restart. In a ADU, a silverware basket was in play after a rinse; keep E12 with this dishwasher rating plate

In a pool house, a crumpled foil ball was in play mid-cycle; keep E12 with this dishwasher rating plate

Keep a photo of the control with your notes. In a guest house, a crumpled foil ball was in play mid-cycle; keep E12 with this dishwasher 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 as documented. In a carriage house, a silverware basket was in play late after dinner; keep E12 with this dishwasher rating plate

Cancel the cycle from the normal control if the booklet shows how. In a pool cabana, a silverware basket was in play late after dinner; keep E12 with this dishwasher rating plate

Do not scoop water with metal tools near wiring. In a mudroom kitchen, a crumpled foil ball was in play when the door was just latched; keep E12 with this dishwasher rating plate

Photograph the display and write the cycle name if one is shown. In a rental suite, a crumpled foil ball was in play when the door was just latched; keep E12 with this dishwasher 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 carriage house, a bottom rack was in play after a rinse; keep E12 with this dishwasher rating plate. Do not keep repeating a cycle that immediately fails. 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

Do not bypass door locks, safety switches, or interlocks. Do not keep running water-using programs if liquid is at the outlet. In a courtyard, a glass on the tines was in play late after dinner; keep E12 with this dishwasher rating plate

Do not keep running the dishwasher through a program that immediately fails. In a rooftop kitchen, a bottom rack was in play late after dinner; keep E12 with this dishwasher rating plate

Do not order a part from E12 without an on-site confirmation. In a ADU, a bottom rack was in play late after dinner; keep E12 with this dishwasher rating plate

Do not scrape, paint over, or discard the rating plate. In a pool house, a detergent cup was in play late after dinner; keep E12 with this dishwasher 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 carriage house, a silverware basket was in play mid-cycle; keep E12 with this dishwasher rating plate.

FAQ

Frequently asked questions

References

Sources & references

Use the documentation supplied with this La Cornue dishwasher. In a courtyard, a detergent cup was in play after a rinse; keep E12 with this dishwasher 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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Hours Mon–Sat: 8:00 AM – 7:00 PM

Service area Serving Los Angeles County and Orange County.

Response time Appointment timing depends on location, route capacity, appliance type, and parts needs.

La Cornue Dishwasher E12 Error Code

Error code overview

What this code means

Symptoms you may notice

Note wash, drain, dry, or a pause if the cycle language is visible. In a guest house, a bottom rack was in play late after dinner; keep E12 with this dishwasher rating plate while E12 is on the dishwasher

Write if standing water is visible in the base when it is safe to look. In a scullery, a detergent cup was in play late after dinner; keep E12 with this dishwasher rating plate while E12 is on the dishwasher

Note wash, drain, dry, or a pause if the cycle language is visible. In a outdoor kitchen, a detergent cup was in play late after dinner; keep E12 with this dishwasher rating plate while E12 is on the dishwasher

Write if standing water is visible in the base when it is safe to look. In a chef line, a silverware basket was in play late after dinner; keep E12 with this dishwasher rating plate while E12 is on the dishwasher

Possible causes

Write E12 exactly as the dishwasher showed it, including extra icons. In a courtyard, a detergent cup was in play after a rinse; keep E12 with this dishwasher rating plate

Add the rating-plate model from this dishwasher. In a rooftop kitchen, a silverware basket was in play after a rinse; keep E12 with this dishwasher rating plate

Say whether the message appeared at start, mid-cycle, or after a restart. In a ADU, a silverware basket was in play after a rinse; keep E12 with this dishwasher rating plate

In a pool house, a crumpled foil ball was in play mid-cycle; keep E12 with this dishwasher rating plate

Keep a photo of the control with your notes. In a guest house, a crumpled foil ball was in play mid-cycle; keep E12 with this dishwasher rating plate

Safe checks you can make

Try a manufacturer-approved restart only as documented. In a carriage house, a silverware basket was in play late after dinner; keep E12 with this dishwasher rating plate

Cancel the cycle from the normal control if the booklet shows how. In a pool cabana, a silverware basket was in play late after dinner; keep E12 with this dishwasher rating plate

Do not scoop water with metal tools near wiring. In a mudroom kitchen, a crumpled foil ball was in play when the door was just latched; keep E12 with this dishwasher rating plate

Photograph the display and write the cycle name if one is shown. In a rental suite, a crumpled foil ball was in play when the door was just latched; keep E12 with this dishwasher rating plate

Important safety warning

Important safety warning.

What not to attempt

Do not bypass door locks, safety switches, or interlocks. Do not keep running water-using programs if liquid is at the outlet. In a courtyard, a glass on the tines was in play late after dinner; keep E12 with this dishwasher rating plate

Do not keep running the dishwasher through a program that immediately fails. In a rooftop kitchen, a bottom rack was in play late after dinner; keep E12 with this dishwasher rating plate

Do not order a part from E12 without an on-site confirmation. In a ADU, a bottom rack was in play late after dinner; keep E12 with this dishwasher rating plate

Do not scrape, paint over, or discard the rating plate. In a pool house, a detergent cup was in play late after dinner; keep E12 with this dishwasher 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 Dishwasher E12 Error Code

Note wash, drain, dry, or a pause if the cycle language is visible. In a guest house, a bottom rack was in play late after dinner; keep E12 with this dishwasher rating plate while E12 is on the dishwasher

Write if standing water is visible in the base when it is safe to look. In a scullery, a detergent cup was in play late after dinner; keep E12 with this dishwasher rating plate while E12 is on the dishwasher

Note wash, drain, dry, or a pause if the cycle language is visible. In a outdoor kitchen, a detergent cup was in play late after dinner; keep E12 with this dishwasher rating plate while E12 is on the dishwasher

Write if standing water is visible in the base when it is safe to look. In a chef line, a silverware basket was in play late after dinner; keep E12 with this dishwasher rating plate while E12 is on the dishwasher

Write E12 exactly as the dishwasher showed it, including extra icons. In a courtyard, a detergent cup was in play after a rinse; keep E12 with this dishwasher rating plate

Add the rating-plate model from this dishwasher. In a rooftop kitchen, a silverware basket was in play after a rinse; keep E12 with this dishwasher rating plate

Say whether the message appeared at start, mid-cycle, or after a restart. In a ADU, a silverware basket was in play after a rinse; keep E12 with this dishwasher rating plate

In a pool house, a crumpled foil ball was in play mid-cycle; keep E12 with this dishwasher rating plate

Keep a photo of the control with your notes. In a guest house, a crumpled foil ball was in play mid-cycle; keep E12 with this dishwasher rating plate

Try a manufacturer-approved restart only as documented. In a carriage house, a silverware basket was in play late after dinner; keep E12 with this dishwasher rating plate

Cancel the cycle from the normal control if the booklet shows how. In a pool cabana, a silverware basket was in play late after dinner; keep E12 with this dishwasher rating plate

Do not scoop water with metal tools near wiring. In a mudroom kitchen, a crumpled foil ball was in play when the door was just latched; keep E12 with this dishwasher rating plate

Photograph the display and write the cycle name if one is shown. In a rental suite, a crumpled foil ball was in play when the door was just latched; keep E12 with this dishwasher rating plate

Important safety warning.

Do not bypass door locks, safety switches, or interlocks. Do not keep running water-using programs if liquid is at the outlet. In a courtyard, a glass on the tines was in play late after dinner; keep E12 with this dishwasher rating plate

Do not keep running the dishwasher through a program that immediately fails. In a rooftop kitchen, a bottom rack was in play late after dinner; keep E12 with this dishwasher rating plate

Do not order a part from E12 without an on-site confirmation. In a ADU, a bottom rack was in play late after dinner; keep E12 with this dishwasher rating plate

Do not scrape, paint over, or discard the rating plate. In a pool house, a detergent cup was in play late after dinner; keep E12 with this dishwasher rating plate

Book a diagnosis

Seeing this code on your La Cornue appliance?

La Cornue Dishwasher E13 Error Code

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La Cornue Dishwasher E16 Error Code

01 Does E12 name the same repair on every La Cornue dishwasher?

02 What should I do first if E12 appears during cooking or a cycle?

03 Is it safe to ignore E12 if the dishwasher seems to continue working?

Ready to restore your La Cornue appliance?

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