fault on my Diplomat ADP8500 - stainless steel dishwasher?

DIPLOMAT ADP8500 DISHWASHER STAINLESS STEEL?
Hi there hoping somebody can help, my dishwashers start light is flashing. but the programe will not start. You can hear it trying to start up but it stops after a few seconds and the flashing light re appear.
I have tried where you turn it off for app 2 seconds and then press the power button again 4 times but nothing happens. Any advice greatly appreciated. The strange thing is it was working fine yesterday and then today nothing just the flashing lights. i have checked the filters and the water supply all are fine. the light flashes twice between pulses, i know this si some kind of code but dont know what it means?