While you wait for answers, we may have found some information which could help you.
Click here for Dishwasher Working Light StartClear E1 error code on smeg dishwasher with no water or leak?
Why is my SMEG Dishwasher showing E1 without water in tray?
How to fix Kenwood Slimline Dishwasher KDW45X20 with a F1 Er?
Hotpoint Aquarius FDW20 diswasher?
Hotpoint Start/Pause button flashing?
How do I turn the delay off on Electrolux DX302 dishwasher?