We may have found other answers which could help you.
Click here for Start Button Not Working
K8D45517?
Hotpoint Aquarius FDW20 diswasher?
Why is my SMEG Dishwasher showing E1 without water in tray?
Why is dishwasher not fully drained of water?
Clear E1 error code on smeg dishwasher with no water or leak?
Hotpoint Start/Pause button flashing?