Gary
me likewise occassionally it over fills and the kitchen is like niagara falls.
The cover is easy to take off screws in front behind door and rear of dishwasher.Take the casing off then left hand side is float valve goes up and down and touches microswitches make sure it is operating freely and tube is not blocked.If not that could be faulty inlet valve on rear. Easy to see as is the valve on the inlet line of water if this is not closing when asked to shut off then washer will over fill.
Dave
Dave Coulson, December 2006