Error code E80 on an AEG washing machine indicates a problem with the machine's door lock. Here are some steps to fix it:
1. Unplug the washing machine from the power source.
2. Check the door lock for any visible damage. If it's damaged, it will need to be replaced.
3. If the door lock appears to be in good condition, the issue could be with the wiring. Check for any loose or damaged wires.
4. If the problem persists, the door lock may still be faulty and require replacement. Consider contacting a professional for further assistance.
