Does F12 name the same repair on every La Cornue dishwasher?

In a farmhouse, a bottom rack was in play late after dinner; keep F12 with this dishwasher rating plate. F12 stays display text on this dishwasher; it is not a spare-part name.

What should I do first if F12 appears during cooking or a cycle?

In a galley, a bottom rack was in play late after dinner; keep F12 with this dishwasher rating plate. F12 stays display text on this dishwasher; it is not a spare-part name.

La Cornue Dishwasher F12 Error Code

Q: Is it safe to ignore F12 if the dishwasher seems to continue working?

In a basement kitchenette, a detergent cup was in play late after dinner; keep F12 with this dishwasher rating plate. F12 stays display text on this dishwasher; it is not a spare-part name.

Treat F12 as characters on a La Cornue dishwasher control. The same letters can be reused on later series. In a rental suite, a glass on the tines was in play after a rinse; keep F12 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 F12

Appliance Dishwasher

Quick answer

F12 — display text for a La Cornue dishwasher. Bring rating-plate details when you book. In a breakfast bar, a bottom rack was in play after a rinse; keep F12 with this dishwasher rating plate.

Model compatibility: La Cornue reuses codes across series and model years, so F12 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

This listing exists so F12 on a dishwasher is documented, not decoded into a myth. In a butler pantry, a bottom rack was in play after a rinse; keep F12 with this dishwasher rating plate. Record whether the door was latched and whether you heard water moving. In a island, a bottom rack was in play when the door was just latched; keep F12 with this dishwasher rating plate. In a courtyard, a silverware basket was in play late after dinner; keep F12 with this dishwasher rating plate. In a mudroom kitchen, a glass on the tines was in play late after dinner; keep F12 with this dishwasher rating plate.

Signs

Symptoms you may notice

Write if standing water is visible in the base when it is safe to look. In a basement kitchenette, a glass on the tines was in play mid-cycle; keep F12 with this dishwasher rating plate while F12 is on the dishwasher

Note wash, drain, dry, or a pause if the cycle language is visible. In a tasting kitchen, a bottom rack was in play mid-cycle; keep F12 with this dishwasher rating plate while F12 is on the dishwasher

Write if standing water is visible in the base when it is safe to look. In a courtyard, a bottom rack was in play mid-cycle; keep F12 with this dishwasher rating plate while F12 is on the dishwasher

Note wash, drain, dry, or a pause if the cycle language is visible. In a rooftop kitchen, a detergent cup was in play mid-cycle; keep F12 with this dishwasher rating plate while F12 is on the dishwasher

Why it happens

Possible causes

Write F12 exactly as the dishwasher showed it, including extra icons. In a breakfast bar, a bottom rack was in play when the door was just latched; keep F12 with this dishwasher rating plate

Add the rating-plate model from this dishwasher. In a butler pantry, a bottom rack was in play when the door was just latched; keep F12 with this dishwasher rating plate

Record whether the door was latched and whether you heard water moving. In a farmhouse, a detergent cup was in play when the door was just latched; keep F12 with this dishwasher rating plate

In a galley, a detergent cup was in play when the door was just latched; keep F12 with this dishwasher rating plate

Keep a photo of the control with your notes. In a basement kitchenette, a silverware basket was in play when the door was just latched; keep F12 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.

Do not scoop water with metal tools near wiring. In a farmhouse, a crumpled foil ball was in play mid-cycle; keep F12 with this dishwasher rating plate

Photograph the display and write the cycle name if one is shown. In a galley, a crumpled foil ball was in play mid-cycle; keep F12 with this dishwasher rating plate

Try a manufacturer-approved restart only as documented. In a basement kitchenette, a glass on the tines was in play mid-cycle; keep F12 with this dishwasher rating plate

Cancel the cycle from the normal control if the booklet shows how. In a tasting kitchen, a bottom rack was in play mid-cycle; keep F12 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 farmhouse, a detergent cup was in play after a rinse; keep F12 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 breakfast bar, a crumpled foil ball was in play when the door was just latched; keep F12 with this dishwasher rating plate

Do not keep running the dishwasher through a program that immediately fails. In a butler pantry, a crumpled foil ball was in play when the door was just latched; keep F12 with this dishwasher rating plate

Do not order a part from F12 without an on-site confirmation. In a farmhouse, a glass on the tines was in play when the door was just latched; keep F12 with this dishwasher rating plate

Do not scrape, paint over, or discard the rating plate. In a galley, a glass on the tines was in play when the door was just latched; keep F12 with this dishwasher rating plate

Get help

When to call a technician

Book a diagnosis

If hazards appeared with F12, treat that as urgent. Otherwise book when you have the model tag and a photo of the control. In a island, a bottom rack was in play when the door was just latched; keep F12 with this dishwasher rating plate.

FAQ

Frequently asked questions

References

Sources & references

Rating-plate documents outrank any website listing. In a breakfast bar, a bottom rack was in play after a rinse; keep F12 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

Book a repair

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

Share a few details and we’ll confirm an appointment. Prefer to talk? Call us and we’ll help right away.

Phone (310) 570-2050

Email Lacornuelosangeles@gmail.com

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 F12 Error Code

Error code overview

What this code means

Symptoms you may notice

Write if standing water is visible in the base when it is safe to look. In a basement kitchenette, a glass on the tines was in play mid-cycle; keep F12 with this dishwasher rating plate while F12 is on the dishwasher

Note wash, drain, dry, or a pause if the cycle language is visible. In a tasting kitchen, a bottom rack was in play mid-cycle; keep F12 with this dishwasher rating plate while F12 is on the dishwasher

Write if standing water is visible in the base when it is safe to look. In a courtyard, a bottom rack was in play mid-cycle; keep F12 with this dishwasher rating plate while F12 is on the dishwasher

Note wash, drain, dry, or a pause if the cycle language is visible. In a rooftop kitchen, a detergent cup was in play mid-cycle; keep F12 with this dishwasher rating plate while F12 is on the dishwasher

Possible causes

Write F12 exactly as the dishwasher showed it, including extra icons. In a breakfast bar, a bottom rack was in play when the door was just latched; keep F12 with this dishwasher rating plate

Add the rating-plate model from this dishwasher. In a butler pantry, a bottom rack was in play when the door was just latched; keep F12 with this dishwasher rating plate

Record whether the door was latched and whether you heard water moving. In a farmhouse, a detergent cup was in play when the door was just latched; keep F12 with this dishwasher rating plate

In a galley, a detergent cup was in play when the door was just latched; keep F12 with this dishwasher rating plate

Keep a photo of the control with your notes. In a basement kitchenette, a silverware basket was in play when the door was just latched; keep F12 with this dishwasher rating plate

Safe checks you can make

Do not scoop water with metal tools near wiring. In a farmhouse, a crumpled foil ball was in play mid-cycle; keep F12 with this dishwasher rating plate

Photograph the display and write the cycle name if one is shown. In a galley, a crumpled foil ball was in play mid-cycle; keep F12 with this dishwasher rating plate

Try a manufacturer-approved restart only as documented. In a basement kitchenette, a glass on the tines was in play mid-cycle; keep F12 with this dishwasher rating plate

Cancel the cycle from the normal control if the booklet shows how. In a tasting kitchen, a bottom rack was in play mid-cycle; keep F12 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 breakfast bar, a crumpled foil ball was in play when the door was just latched; keep F12 with this dishwasher rating plate

Do not keep running the dishwasher through a program that immediately fails. In a butler pantry, a crumpled foil ball was in play when the door was just latched; keep F12 with this dishwasher rating plate

Do not order a part from F12 without an on-site confirmation. In a farmhouse, a glass on the tines was in play when the door was just latched; keep F12 with this dishwasher rating plate

Do not scrape, paint over, or discard the rating plate. In a galley, a glass on the tines was in play when the door was just latched; keep F12 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 F12 Error Code

Write if standing water is visible in the base when it is safe to look. In a basement kitchenette, a glass on the tines was in play mid-cycle; keep F12 with this dishwasher rating plate while F12 is on the dishwasher

Note wash, drain, dry, or a pause if the cycle language is visible. In a tasting kitchen, a bottom rack was in play mid-cycle; keep F12 with this dishwasher rating plate while F12 is on the dishwasher

Write if standing water is visible in the base when it is safe to look. In a courtyard, a bottom rack was in play mid-cycle; keep F12 with this dishwasher rating plate while F12 is on the dishwasher

Note wash, drain, dry, or a pause if the cycle language is visible. In a rooftop kitchen, a detergent cup was in play mid-cycle; keep F12 with this dishwasher rating plate while F12 is on the dishwasher

Write F12 exactly as the dishwasher showed it, including extra icons. In a breakfast bar, a bottom rack was in play when the door was just latched; keep F12 with this dishwasher rating plate

Add the rating-plate model from this dishwasher. In a butler pantry, a bottom rack was in play when the door was just latched; keep F12 with this dishwasher rating plate

Record whether the door was latched and whether you heard water moving. In a farmhouse, a detergent cup was in play when the door was just latched; keep F12 with this dishwasher rating plate

In a galley, a detergent cup was in play when the door was just latched; keep F12 with this dishwasher rating plate

Keep a photo of the control with your notes. In a basement kitchenette, a silverware basket was in play when the door was just latched; keep F12 with this dishwasher rating plate

Do not scoop water with metal tools near wiring. In a farmhouse, a crumpled foil ball was in play mid-cycle; keep F12 with this dishwasher rating plate

Photograph the display and write the cycle name if one is shown. In a galley, a crumpled foil ball was in play mid-cycle; keep F12 with this dishwasher rating plate

Try a manufacturer-approved restart only as documented. In a basement kitchenette, a glass on the tines was in play mid-cycle; keep F12 with this dishwasher rating plate

Cancel the cycle from the normal control if the booklet shows how. In a tasting kitchen, a bottom rack was in play mid-cycle; keep F12 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 breakfast bar, a crumpled foil ball was in play when the door was just latched; keep F12 with this dishwasher rating plate

Do not keep running the dishwasher through a program that immediately fails. In a butler pantry, a crumpled foil ball was in play when the door was just latched; keep F12 with this dishwasher rating plate

Do not order a part from F12 without an on-site confirmation. In a farmhouse, a glass on the tines was in play when the door was just latched; keep F12 with this dishwasher rating plate

Do not scrape, paint over, or discard the rating plate. In a galley, a glass on the tines was in play when the door was just latched; keep F12 with this dishwasher rating plate

Book a diagnosis

Seeing this code on your La Cornue appliance?

La Cornue Dishwasher F13 Error Code

La Cornue Dishwasher F14 Error Code

La Cornue Dishwasher F15 Error Code

01 Does F12 name the same repair on every La Cornue dishwasher?

02 What should I do first if F12 appears during cooking or a cycle?

03 Is it safe to ignore F12 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