Where do I find the model information that belongs with E03?

In a scullery, a glass on the tines was in play mid-cycle; keep E03 with this dishwasher rating plate. E03 stays display text on this dishwasher; it is not a spare-part name.

Will this page tell a technician which board to replace for E03?

In a outdoor kitchen, a glass on the tines was in play mid-cycle; keep E03 with this dishwasher rating plate. E03 stays display text on this dishwasher; it is not a spare-part name.

Should I keep running this dishwasher while E03 is on the control?

In a chef line, a bottom rack was in play mid-cycle; keep E03 with this dishwasher rating plate. E03 stays display text on this dishwasher; it is not a spare-part name.

La Cornue Dishwasher E03 Error Code

A La Cornue dishwasher showing E03 needs notes from the kitchen, not a universal fault name from a website. In a farmhouse, a crumpled foil ball was in play after a rinse; keep E03 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 E03

Appliance Dishwasher

Quick answer

Seeing E03 on a dishwasher? Photograph the control and stop if hazards are present. In a galley, a crumpled foil ball was in play after a rinse; keep E03 with this dishwasher rating plate.

Model compatibility: La Cornue reuses codes across series and model years, so E03 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

Start with the live control: E03. 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 after a rinse; keep E03 with this dishwasher rating plate. In a terrace, a glass on the tines was in play when the door was just latched; keep E03 with this dishwasher rating plate. Nothing here names a single failed part for every series. In a pool house, a detergent cup was in play late after dinner; keep E03 with this dishwasher rating plate. In a butler pantry, a silverware basket was in play mid-cycle; keep E03 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 penthouse, a crumpled foil ball was in play after a rinse; keep E03 with this dishwasher rating plate while E03 is on the dishwasher

Record whether the door was latched and whether you heard water moving. In a carriage house, a glass on the tines was in play after a rinse; keep E03 with this dishwasher rating plate while E03 is on the dishwasher

Say whether the message appeared at start, mid-cycle, or after a restart. In a pool cabana, a glass on the tines was in play after a rinse; keep E03 with this dishwasher rating plate while E03 is on the dishwasher

Record whether the door was latched and whether you heard water moving. In a mudroom kitchen, a bottom rack was in play after a rinse; keep E03 with this dishwasher rating plate while E03 is on the dishwasher

Why it happens

Possible causes

Write E03 exactly as the dishwasher showed it, including extra icons. In a studio, a glass on the tines was in play late after dinner; keep E03 with this dishwasher rating plate

Add the rating-plate model from this dishwasher. In a show kitchen, a bottom rack was in play late after dinner; keep E03 with this dishwasher rating plate

Write if standing water is visible in the base when it is safe to look. In a terrace, a bottom rack was in play late after dinner; keep E03 with this dishwasher rating plate

In a in-law kitchen, a detergent cup was in play late after dinner; keep E03 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 rental suite, a bottom rack was in play late after dinner; keep E03 with this dishwasher rating plate

Try a manufacturer-approved restart only as documented. In a breakfast bar, a detergent cup was in play late after dinner; keep E03 with this dishwasher rating plate

Cancel the cycle from the normal control if the booklet shows how. In a butler pantry, a detergent cup was in play late after dinner; keep E03 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 rental suite, a glass on the tines was in play after a rinse; keep E03 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 studio, a crumpled foil ball was in play after a rinse; keep E03 with this dishwasher rating plate

Do not force a locked door or a jammed control while the dishwasher is hot. In a show kitchen, a glass on the tines was in play after a rinse; keep E03 with this dishwasher rating plate

Do not open internal panels or touch high-voltage terminals. In a terrace, a glass on the tines was in play after a rinse; keep E03 with this dishwasher rating plate

Get help

When to call a technician

Book a diagnosis

A diagnosis visit is the right next step if E03 persists, if you cannot safely reach the outlet, or if the dishwasher behaves differently after the message. In a terrace, a glass on the tines was in play when the door was just latched; keep E03 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 galley, a detergent cup was in play late after dinner; keep E03 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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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 E03 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 penthouse, a crumpled foil ball was in play after a rinse; keep E03 with this dishwasher rating plate while E03 is on the dishwasher

Record whether the door was latched and whether you heard water moving. In a carriage house, a glass on the tines was in play after a rinse; keep E03 with this dishwasher rating plate while E03 is on the dishwasher

Say whether the message appeared at start, mid-cycle, or after a restart. In a pool cabana, a glass on the tines was in play after a rinse; keep E03 with this dishwasher rating plate while E03 is on the dishwasher

Record whether the door was latched and whether you heard water moving. In a mudroom kitchen, a bottom rack was in play after a rinse; keep E03 with this dishwasher rating plate while E03 is on the dishwasher

Possible causes

Write E03 exactly as the dishwasher showed it, including extra icons. In a studio, a glass on the tines was in play late after dinner; keep E03 with this dishwasher rating plate

Add the rating-plate model from this dishwasher. In a show kitchen, a bottom rack was in play late after dinner; keep E03 with this dishwasher rating plate

Write if standing water is visible in the base when it is safe to look. In a terrace, a bottom rack was in play late after dinner; keep E03 with this dishwasher rating plate

In a in-law kitchen, a detergent cup was in play late after dinner; keep E03 with this dishwasher rating plate

Safe checks you can make

Photograph the display and write the cycle name if one is shown. In a rental suite, a bottom rack was in play late after dinner; keep E03 with this dishwasher rating plate

Try a manufacturer-approved restart only as documented. In a breakfast bar, a detergent cup was in play late after dinner; keep E03 with this dishwasher rating plate

Cancel the cycle from the normal control if the booklet shows how. In a butler pantry, a detergent cup was in play late after dinner; keep E03 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 studio, a crumpled foil ball was in play after a rinse; keep E03 with this dishwasher rating plate

Do not force a locked door or a jammed control while the dishwasher is hot. In a show kitchen, a glass on the tines was in play after a rinse; keep E03 with this dishwasher rating plate

Do not open internal panels or touch high-voltage terminals. In a terrace, a glass on the tines was in play after a rinse; keep E03 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 E03 Error Code

Say whether the message appeared at start, mid-cycle, or after a restart. In a penthouse, a crumpled foil ball was in play after a rinse; keep E03 with this dishwasher rating plate while E03 is on the dishwasher

Record whether the door was latched and whether you heard water moving. In a carriage house, a glass on the tines was in play after a rinse; keep E03 with this dishwasher rating plate while E03 is on the dishwasher

Say whether the message appeared at start, mid-cycle, or after a restart. In a pool cabana, a glass on the tines was in play after a rinse; keep E03 with this dishwasher rating plate while E03 is on the dishwasher

Record whether the door was latched and whether you heard water moving. In a mudroom kitchen, a bottom rack was in play after a rinse; keep E03 with this dishwasher rating plate while E03 is on the dishwasher

Write E03 exactly as the dishwasher showed it, including extra icons. In a studio, a glass on the tines was in play late after dinner; keep E03 with this dishwasher rating plate

Add the rating-plate model from this dishwasher. In a show kitchen, a bottom rack was in play late after dinner; keep E03 with this dishwasher rating plate

Write if standing water is visible in the base when it is safe to look. In a terrace, a bottom rack was in play late after dinner; keep E03 with this dishwasher rating plate

In a in-law kitchen, a detergent cup was in play late after dinner; keep E03 with this dishwasher rating plate

Photograph the display and write the cycle name if one is shown. In a rental suite, a bottom rack was in play late after dinner; keep E03 with this dishwasher rating plate

Try a manufacturer-approved restart only as documented. In a breakfast bar, a detergent cup was in play late after dinner; keep E03 with this dishwasher rating plate

Cancel the cycle from the normal control if the booklet shows how. In a butler pantry, a detergent cup was in play late after dinner; keep E03 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 studio, a crumpled foil ball was in play after a rinse; keep E03 with this dishwasher rating plate

Do not force a locked door or a jammed control while the dishwasher is hot. In a show kitchen, a glass on the tines was in play after a rinse; keep E03 with this dishwasher rating plate

Do not open internal panels or touch high-voltage terminals. In a terrace, a glass on the tines was in play after a rinse; keep E03 with this dishwasher rating plate

Book a diagnosis

Seeing this code on your La Cornue appliance?

La Cornue Dishwasher E04 Error Code

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La Cornue Dishwasher E06 Error Code

01 Where do I find the model information that belongs with E03?

02 Will this page tell a technician which board to replace for E03?

03 Should I keep running this dishwasher while E03 is on the control?

Ready to restore your La Cornue appliance?

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