Washer-dryer does not drain water, stops with E20, often with water remaining in the drum.

Safety: Unplug the appliance. Water may spill when opening the filter; keep towels and a shallow tray ready.

• Clean pump filter: Open the lower service flap, place a tray under the filter cap, and slowly unscrew it. Remove coins, buttons, lint, and debris. Clean thoroughly and refit securely.
• Check pump impeller: With the filter removed, reach in and gently turn the impeller. It should rotate freely with slight resistance. Remove any trapped objects.
• Inspect drain hose: Check the external drain hose for kinks or blockages. Detach from the standpipe or sink trap and flush with water.
• Test pump operation: If the pump is silent during drain, access it from the rear or bottom. Check for burnt smell or leaks. Measure coil resistance; replace the AEG drain pump if open circuit or seized.
• Check standpipe/sink trap: Ensure the household drain is not blocked by running water from a tap and observing flow.

If E20 persists after cleaning and pump replacement, a wiring or control board fault may be present and should be checked by a professional.