Hi there.
Having looked all over I have found my instruction book!
Apparently, Error 3 means No Pump Out and the remedy given is Check drain is clear. Check drain hose is not kinked.
It also offers the advice that if the problem persists to ring their service helpline (GIAS) on 08705 400 600. Hope this helps.
I could always scan the instruction pages to you if you want, so you can have a record for the future?
If so email me at pointsworldsem@aol.com.
Steve
Steve, September 2004