AEG washing machine shows E41, door appears closed but machine thinks it is open

Safety first: Unplug the washer.

• Check door alignment: Gently lift the door when closed; excessive play indicates worn hinges that may need adjustment or replacement.
• Inspect catch: Replace the plastic door catch if it is worn or broken.
• Check lock connector: Access the door lock and ensure the connector is fully seated.

If mechanical parts are fine but E41 persists, the internal switch in the door lock is likely faulty and the lock assembly should be replaced.