Weve got the same problem.
I think it is an aoutomatic safety cut - out which kicks in when the outflow pipe is blocked or the pump is faulty.
Ive tried to unblock the outflow pipe and quite a bit of black gunge came out so I thought Great --but no luck it still goes through the wash cycle until it tries to empty and then all the lights flash. It may well be the pump is broken.
Paul Campbell, December 2009