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I40

AEG dishwasher i40: pressure/level sensing fault

Verified with sources1 sourceReviewed Aug 23, 2026
Technician coming? See what they must show you
Open dishwasher showing its racks
Yelderberry (talk)CC BY-SA 4.0Image source

Risk level

Medium

Proceed carefully and stop if the check is unclear.

Urgency

High

Quick answer

i40 means the pressure/level sensing branch is not reporting a valid water level. Preserve the full display and model, then use whether filling and draining both occur, and whether the filters are clean before the code returns to choose the next branch before any part or paid repair.

Safety first

Stop and check this first

  • Stop immediately for water near electricity, smoke, burning smell, abnormal heat, damaged cable or repeated breaker trips. Close the water tap when a leak is possible; sealed water, heat and mains circuits are professional-only.

Safe checks you can perform

  • Capture the decision evidence
  • Run the one discriminating check
  • Stop at the result boundary

Leave these tasks to a qualified professional

  • Do not attempt this professional task: Evidence-led AEG handoff for i40

What a technician must be able to justify

A technician is coming

These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.

These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.

  1. Evidence-led AEG handoff for i40

    What they doA qualified technician should test filters, water path, pressure chamber, level sensor, harness or control, using the exact model/PNC and the recorded result for whether filling and draining both occur, and whether the filters are clean before the code returns.

Before accepting a part or repair

Nothing has been shown yet. Do not accept a part swap based on the code alone.

Checks and evidence, step by step

Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.

  1. 1

    Capture the decision evidence

    No special tools

    Procedure

    Photograph i40, the complete message and model/PNC. Record the failed programme stage and whether filling and draining both occur, and whether the filters are clean before the code returns. Do not clear the history repeatedly.

    Stop immediately for water near electricity, smoke, burning smell, abnormal heat, damaged cable or repeated breaker trips. Close the water tap when a leak is possible; sealed water, heat and mains circuits are professional-only.

    Evidence: AEG France — dishwasher i40/i43/i44 pressure-sensor error

  2. 2

    Run the one discriminating check

    No special tools

    Procedure

    Clean only the user filters, verify the visible hoses are not pinched and perform one one-minute power reset. Do not access pressure tubes or sensors.

    Stop immediately for water near electricity, smoke, burning smell, abnormal heat, damaged cable or repeated breaker trips. Close the water tap when a leak is possible; sealed water, heat and mains circuits are professional-only.

    Evidence: AEG France — dishwasher i40/i43/i44 pressure-sensor error

  3. 3

    Stop at the result boundary

    No special tools

    Procedure

    Normal fill and drain with i40 returning isolates level sensing or its control. Abnormal fill or drain first selects that hydraulic branch; the code does not prove a sensor part. If the same result returns after this one controlled pass, stop rather than chaining resets or cycles.

    Stop immediately for water near electricity, smoke, burning smell, abnormal heat, damaged cable or repeated breaker trips. Close the water tap when a leak is possible; sealed water, heat and mains circuits are professional-only.

    Evidence: AEG France — dishwasher i40/i43/i44 pressure-sensor error

Where this code applies

A code is meaningful only inside the right product and version context.

Primary scope

System
Appliances
Brand
AEG
Product type
Dishwashers

Known code variants

  • AEG dishwasher i40
  • AEG dishwasher i43
  • AEG dishwasher i44
  • AEG Fehler i40
  • AEG Geschirrspüler i40
  • AEG Geschirrspüler i43
  • AEG Geschirrspüler i44
  • AEG i40 error
  • AEG lavastoviglie i40
  • AEG lavastoviglie i43
  • AEG lavastoviglie i44
  • AEG lavavajillas i40
  • AEG lavavajillas i43
  • AEG lavavajillas i44
  • AEG lave-vaisselle i40
  • AEG lave-vaisselle i43
  • AEG lave-vaisselle i44
  • code erreur AEG i40
  • Electrolux dishwasher i40
  • Electrolux i40
  • error AEG i40
  • error i40 lavavajillas Electrolux
  • errore AEG i40
  • I40
  • i40 AEG dishwasher
  • i40 AEG Geschirrspüler
  • i40 AEG lavastoviglie
  • i40 AEG lavavajillas
  • i40 AEG lave-vaisselle
  • i41
  • i43
  • i44

What it means

AEG's official French support documents i40 on the dishwasher as follows: the pressure/level sensing branch is not reporting a valid water level. The exact model manual controls compatibility; the same code on another appliance can mean something else.

Warnings and stop conditions

  • Highsource verified

    Stop immediately for water near electricity, smoke, burning smell, abnormal heat, damaged cable or repeated breaker trips. Close the water tap when a leak is possible; sealed water, heat and mains circuits are professional-only.

    Evidence: AEG France — dishwasher i40/i43/i44 pressure-sensor error

Symptoms and causes

Probable causes · in order

  • Official AEG meaningConfirmed

    AEG's official French support documents i40 on the dishwasher as follows: the pressure/level sensing branch is not reporting a valid water level. The exact model manual controls compatibility; the same code on another appliance can mean something else.

    Evidence: AEG France — dishwasher i40/i43/i44 pressure-sensor error

  • What still has to be separatedPossible

    filters, water path, pressure chamber, level sensor, harness or control

    Evidence: AEG France — dishwasher i40/i43/i44 pressure-sensor error

Virtual technician

Does I40 still appear after these checks?

Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.

Sources and technical references

Sources: AEG France — dishwasher i40/i43/i44 pressure-sensor errorreviewed 2026-08-23 · verified

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