hi john,
water flow into the rinse chamber is controlled by a solenoid valve.
you will find maybe upto 3 of them under the top lid. they are easy enough to trace ie fill/rinse/final rinse.
check the two leads are firmly fixed and the valve isn't jammed but more often than not its the non repairable solenoid wiring thats failed.
go to www.espares.co.uk
Geoff deep down inside Wales, August 2011