possibly the one or more conectors have become loose (fault guide from manual) although unlikey unless you have recently moved it, more likley that a part of the pcb has failed you can source them cheap enough from 4hotpoint espares, partmaster or some such in the uk, although you might be wise to ask a helpline for the exact part you need so you dont start the mad part swapping idea.
hope this helps a bit
nanotm, December 2009
