Had the same problem with ours after 18 months. Spent 3 days trying everything to reset it but nothing worked, then one last thought before taking it to the tip I checked the hose. These machines don't spin if there is water in the cylinder, so I disconnected the hose from the drain pipe, put it in a bucket and turned the machine back on and water flooded out. The blockage was at the rubber none return valve in our kitchen wastepipe. Two curtain hooks and a button later and everything was fine. Hope this helps
Mike Dennis, February 2010