Should I keep running this dishwasher while F09 is on the control?

In a rental suite, a crumpled foil ball was in play mid-cycle; keep F09 with this dishwasher rating plate. F09 stays display text on this dishwasher; it is not a spare-part name.

Does F09 name the same repair on every La Cornue dishwasher?

In a breakfast bar, a glass on the tines was in play mid-cycle; keep F09 with this dishwasher rating plate. F09 stays display text on this dishwasher; it is not a spare-part name.

What should I do first if F09 appears during cooking or a cycle?

In a butler pantry, a glass on the tines was in play mid-cycle; keep F09 with this dishwasher rating plate. F09 stays display text on this dishwasher; it is not a spare-part name.

La Cornue Dishwasher F09 Error Code

F09 on this La Cornue dishwasher is the exact display to record, not a published diagnosis. In a island, a crumpled foil ball was in play late after dinner; keep F09 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 F09

Appliance Dishwasher

Quick answer

F09 archive note for a La Cornue dishwasher. Observational only; no claimed mapping. In a studio, a glass on the tines was in play late after dinner; keep F09 with this dishwasher rating plate.

Model compatibility: La Cornue reuses codes across series and model years, so F09 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

Write if standing water is visible in the base when it is safe to look. That context sits beside F09, not underneath a claimed meaning. In a show kitchen, a bottom rack was in play late after dinner; keep F09 with this dishwasher rating plate. In a tasting kitchen, a bottom rack was in play mid-cycle; keep F09 with this dishwasher rating plate. In a pool cabana, a detergent cup was in play after a rinse; keep F09 with this dishwasher rating plate. In a chef line, a crumpled foil ball was in play after a rinse; keep F09 with this dishwasher rating plate.

Signs

Symptoms you may notice

Say whether the message appeared at start, mid-cycle, or after a restart. In a rooftop kitchen, a silverware basket was in play mid-cycle; keep F09 with this dishwasher rating plate while F09 is on the dishwasher

Record whether the door was latched and whether you heard water moving. In a ADU, a silverware basket was in play mid-cycle; keep F09 with this dishwasher rating plate while F09 is on the dishwasher

Say whether the message appeared at start, mid-cycle, or after a restart. In a pool house, a crumpled foil ball was in play late after dinner; keep F09 with this dishwasher rating plate while F09 is on the dishwasher

Record whether the door was latched and whether you heard water moving. In a guest house, a crumpled foil ball was in play late after dinner; keep F09 with this dishwasher rating plate while F09 is on the dishwasher

Why it happens

Possible causes

Write F09 exactly as the dishwasher showed it, including extra icons. In a galley, a silverware basket was in play when the door was just latched; keep F09 with this dishwasher rating plate

Add the rating-plate model from this dishwasher. In a basement kitchenette, a crumpled foil ball was in play after a rinse; keep F09 with this dishwasher rating plate

Write if standing water is visible in the base when it is safe to look. In a tasting kitchen, a glass on the tines was in play after a rinse; keep F09 with this dishwasher rating plate

In a courtyard, a glass on the tines was in play after a rinse; keep F09 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.

Photograph the display and write the cycle name if one is shown. In a scullery, a detergent cup was in play when the door was just latched; keep F09 with this dishwasher rating plate

Try a manufacturer-approved restart only as documented. In a outdoor kitchen, a detergent cup was in play when the door was just latched; keep F09 with this dishwasher rating plate

Cancel the cycle from the normal control if the booklet shows how. In a chef line, a silverware basket was in play when the door was just latched; keep F09 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 scullery, a detergent cup was in play after a rinse; keep F09 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 galley, a silverware basket was in play after a rinse; keep F09 with this dishwasher rating plate

Do not force a locked door or a jammed control while the dishwasher is hot. In a basement kitchenette, a crumpled foil ball was in play mid-cycle; keep F09 with this dishwasher rating plate

Do not open internal panels or touch high-voltage terminals. In a tasting kitchen, a glass on the tines was in play mid-cycle; keep F09 with this dishwasher rating plate

Get help

When to call a technician

Book a diagnosis

A diagnosis visit is the right next step if F09 persists, if you cannot safely reach the outlet, or if the dishwasher behaves differently after the message. In a tasting kitchen, a bottom rack was in play mid-cycle; keep F09 with this dishwasher rating plate.

FAQ

Frequently asked questions

References

Sources & references

This archive is observational and does not replace the papers that came with the dishwasher. In a studio, a bottom rack was in play late after dinner; keep F09 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 F09 Error Code

Error code overview

What this code means

Symptoms you may notice

Say whether the message appeared at start, mid-cycle, or after a restart. In a rooftop kitchen, a silverware basket was in play mid-cycle; keep F09 with this dishwasher rating plate while F09 is on the dishwasher

Record whether the door was latched and whether you heard water moving. In a ADU, a silverware basket was in play mid-cycle; keep F09 with this dishwasher rating plate while F09 is on the dishwasher

Say whether the message appeared at start, mid-cycle, or after a restart. In a pool house, a crumpled foil ball was in play late after dinner; keep F09 with this dishwasher rating plate while F09 is on the dishwasher

Record whether the door was latched and whether you heard water moving. In a guest house, a crumpled foil ball was in play late after dinner; keep F09 with this dishwasher rating plate while F09 is on the dishwasher

Possible causes

Write F09 exactly as the dishwasher showed it, including extra icons. In a galley, a silverware basket was in play when the door was just latched; keep F09 with this dishwasher rating plate

Add the rating-plate model from this dishwasher. In a basement kitchenette, a crumpled foil ball was in play after a rinse; keep F09 with this dishwasher rating plate

Write if standing water is visible in the base when it is safe to look. In a tasting kitchen, a glass on the tines was in play after a rinse; keep F09 with this dishwasher rating plate

In a courtyard, a glass on the tines was in play after a rinse; keep F09 with this dishwasher rating plate

Safe checks you can make

Photograph the display and write the cycle name if one is shown. In a scullery, a detergent cup was in play when the door was just latched; keep F09 with this dishwasher rating plate

Try a manufacturer-approved restart only as documented. In a outdoor kitchen, a detergent cup was in play when the door was just latched; keep F09 with this dishwasher rating plate

Cancel the cycle from the normal control if the booklet shows how. In a chef line, a silverware basket was in play when the door was just latched; keep F09 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 galley, a silverware basket was in play after a rinse; keep F09 with this dishwasher rating plate

Do not force a locked door or a jammed control while the dishwasher is hot. In a basement kitchenette, a crumpled foil ball was in play mid-cycle; keep F09 with this dishwasher rating plate

Do not open internal panels or touch high-voltage terminals. In a tasting kitchen, a glass on the tines was in play mid-cycle; keep F09 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 F09 Error Code

Say whether the message appeared at start, mid-cycle, or after a restart. In a rooftop kitchen, a silverware basket was in play mid-cycle; keep F09 with this dishwasher rating plate while F09 is on the dishwasher

Record whether the door was latched and whether you heard water moving. In a ADU, a silverware basket was in play mid-cycle; keep F09 with this dishwasher rating plate while F09 is on the dishwasher

Say whether the message appeared at start, mid-cycle, or after a restart. In a pool house, a crumpled foil ball was in play late after dinner; keep F09 with this dishwasher rating plate while F09 is on the dishwasher

Record whether the door was latched and whether you heard water moving. In a guest house, a crumpled foil ball was in play late after dinner; keep F09 with this dishwasher rating plate while F09 is on the dishwasher

Write F09 exactly as the dishwasher showed it, including extra icons. In a galley, a silverware basket was in play when the door was just latched; keep F09 with this dishwasher rating plate

Add the rating-plate model from this dishwasher. In a basement kitchenette, a crumpled foil ball was in play after a rinse; keep F09 with this dishwasher rating plate

Write if standing water is visible in the base when it is safe to look. In a tasting kitchen, a glass on the tines was in play after a rinse; keep F09 with this dishwasher rating plate

In a courtyard, a glass on the tines was in play after a rinse; keep F09 with this dishwasher rating plate

Photograph the display and write the cycle name if one is shown. In a scullery, a detergent cup was in play when the door was just latched; keep F09 with this dishwasher rating plate

Try a manufacturer-approved restart only as documented. In a outdoor kitchen, a detergent cup was in play when the door was just latched; keep F09 with this dishwasher rating plate

Cancel the cycle from the normal control if the booklet shows how. In a chef line, a silverware basket was in play when the door was just latched; keep F09 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 galley, a silverware basket was in play after a rinse; keep F09 with this dishwasher rating plate

Do not force a locked door or a jammed control while the dishwasher is hot. In a basement kitchenette, a crumpled foil ball was in play mid-cycle; keep F09 with this dishwasher rating plate

Do not open internal panels or touch high-voltage terminals. In a tasting kitchen, a glass on the tines was in play mid-cycle; keep F09 with this dishwasher rating plate

Book a diagnosis

Seeing this code on your La Cornue appliance?

La Cornue Dishwasher F10 Error Code

La Cornue Dishwasher F11 Error Code

La Cornue Dishwasher F12 Error Code

01 Should I keep running this dishwasher while F09 is on the control?

02 Does F09 name the same repair on every La Cornue dishwasher?

03 What should I do first if F09 appears during cooking or a cycle?

Ready to restore your La Cornue appliance?

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