Where do I find the model information that belongs with F03?

In a terrace, a bottom rack was in play late after dinner; keep F03 with this dishwasher rating plate. F03 stays display text on this dishwasher; it is not a spare-part name.

Will this page tell a technician which board to replace for F03?

In a in-law kitchen, a detergent cup was in play late after dinner; keep F03 with this dishwasher rating plate. F03 stays display text on this dishwasher; it is not a spare-part name.

Should I keep running this dishwasher while F03 is on the control?

In a penthouse, a detergent cup was in play late after dinner; keep F03 with this dishwasher rating plate. F03 stays display text on this dishwasher; it is not a spare-part name.

La Cornue Dishwasher F03 Error Code

This page is about the F03 message on a La Cornue dishwasher: what to capture, what to stop for, and what helps a visit. In a carriage house, a silverware basket was in play mid-cycle; keep F03 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 F03

Appliance Dishwasher

Quick answer

La Cornue dishwasher message F03. Write what you see; do not assume one failed part. In a pool cabana, a silverware basket was in play mid-cycle; keep F03 with this dishwasher rating plate.

Model compatibility: La Cornue reuses codes across series and model years, so F03 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

F03 is the string this La Cornue dishwasher showed. In a mudroom kitchen, a crumpled foil ball was in play late after dinner; keep F03 with this dishwasher rating plate. In a scullery, a crumpled foil ball was in play mid-cycle; keep F03 with this dishwasher rating plate. Note wash, drain, dry, or a pause if the cycle language is visible. In a galley, a glass on the tines was in play after a rinse; keep F03 with this dishwasher rating plate. In a penthouse, a detergent cup was in play when the door was just latched; keep F03 with this dishwasher rating plate.

Signs

Symptoms you may notice

Record whether the door was latched and whether you heard water moving. In a chef line, a silverware basket was in play late after dinner; keep F03 with this dishwasher rating plate while F03 is on the dishwasher

Say whether the message appeared at start, mid-cycle, or after a restart. In a island, a silverware basket was in play late after dinner; keep F03 with this dishwasher rating plate while F03 is on the dishwasher

Record whether the door was latched and whether you heard water moving. In a studio, a crumpled foil ball was in play when the door was just latched; keep F03 with this dishwasher rating plate while F03 is on the dishwasher

Say whether the message appeared at start, mid-cycle, or after a restart. In a show kitchen, a glass on the tines was in play when the door was just latched; keep F03 with this dishwasher rating plate while F03 is on the dishwasher

Why it happens

Possible causes

Write F03 exactly as the dishwasher showed it, including extra icons. In a pool house, a crumpled foil ball was in play mid-cycle; keep F03 with this dishwasher rating plate

Add the rating-plate model from this dishwasher. In a guest house, a crumpled foil ball was in play mid-cycle; keep F03 with this dishwasher rating plate

Note wash, drain, dry, or a pause if the cycle language is visible. In a scullery, a glass on the tines was in play mid-cycle; keep F03 with this dishwasher rating plate

In a outdoor kitchen, a glass on the tines was in play mid-cycle; keep F03 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.

Cancel the cycle from the normal control if the booklet shows how. In a tasting kitchen, a silverware basket was in play after a rinse; keep F03 with this dishwasher rating plate

Do not scoop water with metal tools near wiring. In a courtyard, a silverware basket was in play after a rinse; keep F03 with this dishwasher rating plate

Photograph the display and write the cycle name if one is shown. In a rooftop kitchen, a crumpled foil ball was in play mid-cycle; keep F03 with this dishwasher rating plate

Safety warning

Important safety warning

Important safety warning.

If the outlet is wet, skip unplugging and isolate power another safe way or wait for help. In a tasting kitchen, a detergent cup was in play after a rinse; keep F03 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 scrape, paint over, or discard the rating plate. Do not keep running water-using programs if liquid is at the outlet. In a pool house, a silverware basket was in play after a rinse; keep F03 with this dishwasher rating plate

Do not force a locked door or a jammed control while the dishwasher is hot. In a guest house, a silverware basket was in play after a rinse; keep F03 with this dishwasher rating plate

Do not open internal panels or touch high-voltage terminals. In a scullery, a crumpled foil ball was in play mid-cycle; keep F03 with this dishwasher rating plate

Get help

When to call a technician

Book a diagnosis

A diagnosis visit is the right next step if F03 persists, if you cannot safely reach the outlet, or if the dishwasher behaves differently after the message. In a scullery, a crumpled foil ball was in play mid-cycle; keep F03 with this dishwasher rating plate.

FAQ

Frequently asked questions

References

Sources & references

Display messages for a dishwasher belong in the booklet that shipped with the appliance. In a pool cabana, a bottom rack was in play late after dinner; keep F03 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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La Cornue Dishwasher F03 Error Code

Error code overview

What this code means

Symptoms you may notice

Record whether the door was latched and whether you heard water moving. In a chef line, a silverware basket was in play late after dinner; keep F03 with this dishwasher rating plate while F03 is on the dishwasher

Say whether the message appeared at start, mid-cycle, or after a restart. In a island, a silverware basket was in play late after dinner; keep F03 with this dishwasher rating plate while F03 is on the dishwasher

Record whether the door was latched and whether you heard water moving. In a studio, a crumpled foil ball was in play when the door was just latched; keep F03 with this dishwasher rating plate while F03 is on the dishwasher

Say whether the message appeared at start, mid-cycle, or after a restart. In a show kitchen, a glass on the tines was in play when the door was just latched; keep F03 with this dishwasher rating plate while F03 is on the dishwasher

Possible causes

Write F03 exactly as the dishwasher showed it, including extra icons. In a pool house, a crumpled foil ball was in play mid-cycle; keep F03 with this dishwasher rating plate

Add the rating-plate model from this dishwasher. In a guest house, a crumpled foil ball was in play mid-cycle; keep F03 with this dishwasher rating plate

Note wash, drain, dry, or a pause if the cycle language is visible. In a scullery, a glass on the tines was in play mid-cycle; keep F03 with this dishwasher rating plate

In a outdoor kitchen, a glass on the tines was in play mid-cycle; keep F03 with this dishwasher rating plate

Safe checks you can make

Cancel the cycle from the normal control if the booklet shows how. In a tasting kitchen, a silverware basket was in play after a rinse; keep F03 with this dishwasher rating plate

Do not scoop water with metal tools near wiring. In a courtyard, a silverware basket was in play after a rinse; keep F03 with this dishwasher rating plate

Photograph the display and write the cycle name if one is shown. In a rooftop kitchen, a crumpled foil ball was in play mid-cycle; keep F03 with this dishwasher rating plate

Important safety warning

Important safety warning.

What not to attempt

Do not scrape, paint over, or discard the rating plate. Do not keep running water-using programs if liquid is at the outlet. In a pool house, a silverware basket was in play after a rinse; keep F03 with this dishwasher rating plate

Do not force a locked door or a jammed control while the dishwasher is hot. In a guest house, a silverware basket was in play after a rinse; keep F03 with this dishwasher rating plate

Do not open internal panels or touch high-voltage terminals. In a scullery, a crumpled foil ball was in play mid-cycle; keep F03 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 F03 Error Code

Record whether the door was latched and whether you heard water moving. In a chef line, a silverware basket was in play late after dinner; keep F03 with this dishwasher rating plate while F03 is on the dishwasher

Say whether the message appeared at start, mid-cycle, or after a restart. In a island, a silverware basket was in play late after dinner; keep F03 with this dishwasher rating plate while F03 is on the dishwasher

Record whether the door was latched and whether you heard water moving. In a studio, a crumpled foil ball was in play when the door was just latched; keep F03 with this dishwasher rating plate while F03 is on the dishwasher

Say whether the message appeared at start, mid-cycle, or after a restart. In a show kitchen, a glass on the tines was in play when the door was just latched; keep F03 with this dishwasher rating plate while F03 is on the dishwasher

Write F03 exactly as the dishwasher showed it, including extra icons. In a pool house, a crumpled foil ball was in play mid-cycle; keep F03 with this dishwasher rating plate

Add the rating-plate model from this dishwasher. In a guest house, a crumpled foil ball was in play mid-cycle; keep F03 with this dishwasher rating plate

Note wash, drain, dry, or a pause if the cycle language is visible. In a scullery, a glass on the tines was in play mid-cycle; keep F03 with this dishwasher rating plate

In a outdoor kitchen, a glass on the tines was in play mid-cycle; keep F03 with this dishwasher rating plate

Cancel the cycle from the normal control if the booklet shows how. In a tasting kitchen, a silverware basket was in play after a rinse; keep F03 with this dishwasher rating plate

Do not scoop water with metal tools near wiring. In a courtyard, a silverware basket was in play after a rinse; keep F03 with this dishwasher rating plate

Photograph the display and write the cycle name if one is shown. In a rooftop kitchen, a crumpled foil ball was in play mid-cycle; keep F03 with this dishwasher rating plate

Important safety warning.

Do not scrape, paint over, or discard the rating plate. Do not keep running water-using programs if liquid is at the outlet. In a pool house, a silverware basket was in play after a rinse; keep F03 with this dishwasher rating plate

Do not force a locked door or a jammed control while the dishwasher is hot. In a guest house, a silverware basket was in play after a rinse; keep F03 with this dishwasher rating plate

Do not open internal panels or touch high-voltage terminals. In a scullery, a crumpled foil ball was in play mid-cycle; keep F03 with this dishwasher rating plate

Book a diagnosis

Seeing this code on your La Cornue appliance?

La Cornue Dishwasher F04 Error Code

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La Cornue Dishwasher F06 Error Code

01 Where do I find the model information that belongs with F03?

02 Will this page tell a technician which board to replace for F03?

03 Should I keep running this dishwasher while F03 is on the control?

Ready to restore your La Cornue appliance?

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