replacing the switch is not too difficult
first disconnect the mains supply
remove the top cover disconnect the switch wires, carefully noting where they are fitted
if you are unsure make a sketch of them before you remove them
disconnect the small black pipe to the control panel
then remove the three screws holding the panel in place
it slides downwards to remove
then gently prise the switch from its mounting
fit the new switch and reassemble the rest of the machine make sure the small black pipe is reconnected if you forget you will flood the room as this tells the electronics when the water level is correct
hope this helps
chris
February 2009