While you wait for answers, we may have found some information which could help you.
Click here for Dishwasher Starting CycleHotpoint Start/Pause button flashing?
Which way up is the upper spray arm - with holes uppermost o?
Simpson Silencio 850 Dishwasher?
How to fix Kenwood Slimline Dishwasher KDW45X20 with a F1 Er?
How can I mend my Zanussi ZDLN1512 dishwasher?
K8D45517?