AEG · Washing Machine · Drainage Problem

AEG Washing Machine Error E20

AEG washing machine error E20 usually indicates a drainage fault. ECL records this code as “Drainage Problem”. Common causes on this page include Blocked drain filter or pump chamber and Kinked or incorrectly installed drain hose, but the exact cause can vary by model and appliance generation. Start with the safe external checks below, confirm model-specific guidance using your exact model number, and arrange repair help if the code returns or any safety warning applies.

Quick answer: Drainage Problem

In simple terms

AEG washing machine code E20 usually means Drainage Problem. Follow these four steps.

1Understand the code

See what the code usually means and why it may have appeared.

2Try safe checks

Try only the simple checks listed on this page. Do not take the appliance apart.

3Check if it is safe to use

Check the safety section before you keep using the appliance.

4Choose the next step

Use the next-step box to see whether to keep checking, find a part by model or get repair help.

What AEG E20 means

E20 is an AEG drainage fault: the machine has not emptied within the expected time or the water-level system still reports water present. On some displays it may appear as C2 or a sequence of beeps.

Common causes

  • Blocked drain filter or pump chamber
  • Kinked or incorrectly installed drain hose
  • Blocked sink waste connection
  • Drain pump, pressure chamber, or pressure sensor fault

Safe checks you can make

  1. Switch off and prepare for retained water
  2. Clean the accessible drain filter
  3. Check the hose and sink connection
  4. Run drain only and listen for the pump

Repair help

Try the safe checks first

Start with the simple checks on this page. If the code comes back, stop guessing and get repair help.

Still showing? Get repair help Check parts using your model number

Before buying a part: confirm the full model number and check the seller's part number. A fault code alone is not enough.

No obligation. Your contact details are only shared after you submit the repair request, and only with a suitable ECL Verified repairer where coverage is available.

Is it safe to keep using the appliance?

Do not force the door or run another full programme while drainage is incomplete.

When to stop and call an engineer

If standard user maintenance does not clear the error, or if you suspect an electrical component failure.

Your model may be different

Some AEG models show C2 or use alarm flashes for the same drainage family. Check the model manual for the exact display convention.

Where this information comes from

Publisher: Error Code Lookup Editorial Team. This page is independent information written in our own words and reviewed with safety boundaries in mind.

Manufacturer information: AEG UK Support. Use the exact model number to verify model-specific wording and instructions.

Last reviewed: 2026-07-31

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Frequently asked questions

What does E20 mean on a AEG washing machine?

E20 is an AEG drainage fault: the machine has not emptied within the expected time or the water-level system still reports water present. On some displays it may appear as C2 or a sequence of beeps.

What usually causes AEG error E20?

Common causes include Blocked drain filter or pump chamber; Kinked or incorrectly installed drain hose; Blocked sink waste connection; Drain pump, pressure chamber, or pressure sensor fault.

Can I safely fix E20 myself?

Some basic external checks may be safe to try first. Stop if there are leaks, burning smells, overheating, electrical issues, unusual noises or repeated failures.

When should I call a professional for E20?

If standard user maintenance does not clear the error, or if you suspect an electrical component failure.

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