I have had lights 2 and 4 flash as an error increasingly soon after starting the cycle (over several weeks). I eventually assumed that the heating element cut-out was stopping the cycle (due to overheating - presumably lime build up on element). Eventually it would start 'just' as the heating element would presumably cut in, ie after the water had filled the sump of the machine.
Engineer took machine away to diagnose and fitted new heater element...
Before it came back the engineer said that it had developed another problem after (his) fitting of a new heater element... the casing was now live.
came back - fixed...
Once back in situ I put it thorough a cycle and between 30-60 mins it has now started to trip our mains circuit breaker - clearly a leak somewhere (elec).
I have called the engineer....
David
October 2009