Aeg Dishwasher Error i40

⚡ Quick Answer: The AEG dishwasher error i40 indicates a water leakage detection issue, often linked to a fault with the pressure sensor or water level control. Users... ✅ DIY Fixable

What Does Error i40 Mean?

The AEG dishwasher error i40 indicates a water leakage detection issue, often linked to a fault with the pressure sensor or water level control. Users may notice the dishwasher stops operation, accompanied by four beeps or flashes, along with poor or no drainage. To address this, it's recommended to clean filters and check for blockages. If the error persists, further inspection of the pressure sensor and drainage system may be necessary.

Common Symptoms:

  • Dishwasher stops operation with i40 displayed
  • Four beeps or four flashes accompanying the error
  • Poor or no draining observed in many user cases

Possible Causes

  • Pressure sensor/water level control fault (high)

How to Fix Error i40

DIY Fix Clean filters and basic checks

  1. Turn off and unplug the dishwasher.
  2. Remove and clean the bottom filters and sump of debris.
  3. Ensure drain hose is not kinked or blocked.
  4. Plug in and restart the dishwasher to see if error clears.

DIY Fix Reset appliance

  1. Disconnect from power (unplug or switch off at fuse) for ~1–5 minutes.
  2. Reconnect power and start a normal cycle.

Technician Only Inspect pressure sensor and water level control

  1. Run diagnostic cycle to confirm sensor readings.
  2. Check pressure sensor and associated wiring harness for faults.
  3. Replace defective pressure sensor or repair wiring as needed.

Parts needed: pressure sensor, wiring harness

Technician Only Drain pump inspection and service

  1. Remove and inspect the drain pump impeller for debris.
  2. Test pump operation and electrical continuity.
  3. Replace the drain pump if it fails to operate correctly.

Parts needed: drain pump assembly

🛑 When to Call a Pro:
  • Error persists after cleaning filters, clearing blockages, and resetting
  • Signs of electrical or wiring faults (e.g., intermittent faults after part replacements)

Technical Specifications

wattage 1800W
component Leakage sensor
resistance 5-10 ohms
part_number AEG 5020000001
voltage_rating 230V AC

Common Questions

What does i40 error mean on AEG dishwasher?

The i40 error indicates a water leakage detection issue, often related to a pressure sensor or water level control fault.

Can I fix AEG dishwasher i40 error myself?

Yes, you can try cleaning the filters and checking for blockages. Resetting the appliance may also help.

How much does it cost to fix i40 error?

The estimated repair cost for the i40 error ranges from $80 to $200, depending on the necessary parts.

When should I call a technician for i40?

You should call a technician if the error persists after cleaning filters, or if you notice electrical faults.

Sources & References

Data last verified: 2026-03-13

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