The EF3 error code on an AEG washing machine typically indicates a problem with the drain system. Follow these steps to fix it:
1. Turn off and unplug your washing machine.
2. Check the drain hose for any blockages. If you find any, remove them.
3. Clean the filter located at the bottom of the machine.
4. Reconnect the drain hose and plug back in your washing machine.
5. Run a test cycle to see if the error code has been cleared.
If the error code continues to appear, you may need to call a professional for further assistance.
