AEG Dishwasher Error i20

⚡ Quick Answer: The AEG dishwasher i20 error code indicates a drainage failure, signifying that the appliance cannot properly drain water during or at the end of a cy... ✅ DIY Fixable

What Does Error i20 Mean?

The AEG dishwasher i20 error code indicates a drainage failure, signifying that the appliance cannot properly drain water during or at the end of a cycle. Symptoms include standing water in the tub, the dishwasher stopping mid-cycle with the i20 code displayed, and poor drainage into the sink. Common causes are clogged internal filters or issues with the drain hose setup.

Common Symptoms:

  • Standing water in dishwasher tub after or during cycle
  • Dishwasher stops mid‑cycle with i20 code displayed or beeping twice
  • Poor or no drainage into sink drain

Possible Causes

  • Clogged internal filters or sump area (high)

How to Fix Error i20

DIY Fix Check and clean dishwasher filter and internal drain path

  1. Turn off and disconnect power to the dishwasher.
  2. Open the dishwasher and remove the bottom rack.
  3. Locate and remove the filter assembly and thoroughly rinse it under running water.
  4. Inspect the sump area for debris and clear any visible blockages.
  5. Reassemble the filter and run a short rinse cycle to test drainage.

DIY Fix Inspect and correct drain hose routing and connection

  1. Turn off power and access the back of the dishwasher.
  2. Verify the drain hose is not kinked, twisted or pinched and ensure it is within manufacturer‑recommended routing.
  3. Confirm the height and connection point are correctly positioned.
  4. Check that any blanking plug at the sink connection/siphon has been removed.
  5. Reconnect and secure hose clamps, then test the dishwasher’s drain cycle.

Technician Only Inspect and service drain pump and associated components

  1. Disconnect power at the circuit breaker.
  2. Remove the dishwasher’s bottom access panel.
  3. Inspect the drain pump for trapped debris or foreign objects.
  4. Test the pump motor for proper operation and replace the pump if faulty.
  5. Verify internal hose connections and sensors related to water level and draining.
  6. Reassemble and test the unit’s drain cycle.

Parts needed: Drain pump assembly, Pump impeller, Gaskets/clamps

🛑 When to Call a Pro:
  • If water remains after clearing filters and hoses
  • If the drain pump hums but fails to move water
  • If you detect leaks when accessing internal components
  • If you are uncomfortable performing drain pump inspection

Next step

Choose the next step for i20

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Based on diagnostic data

Most relevant component to inspect

Drain Pump

Pumps waste water out of the appliance during the drain cycle.

Typical part-only price
$35 - $80
DIY difficulty
Easy
Estimated time
15-30 mins
Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

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Technical Specifications

wattage 30W
component Drain Pump
resistance 5-15 ohms
part_number AEG 1522001001
voltage_rating 230V AC

Common Questions

What does i20 error mean on AEG dishwasher?

The i20 error on your AEG dishwasher indicates a drainage issue, typically caused by clogged filters or a problem with the drain hose.

Can I fix AEG dishwasher i20 error myself?

Yes, you can check and clean the dishwasher filter and inspect the drain hose for kinks or improper routing.

How much does it cost to fix i20 error?

The estimated repair cost for the i20 error ranges from $80 to $250, depending on the necessary parts and service.

When should I call a technician for i20?

You should call a technician if water remains after clearing filters, if the drain pump hums but fails to move water, or if you feel uncomfortable inspecting internal components.

Sources & References

Data last verified: 2026-07-26

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