While you wait for answers, we may have found some information which could help you.
Click here for Three Light HelpHow to fix Kenwood Slimline Dishwasher KDW45X20 with a F1 Er?
Clear E1 error code on smeg dishwasher with no water or leak?
Why is dishwasher not fully drained of water?
Simpson Silencio 850 Dishwasher?
Which way up is the upper spray arm - with holes uppermost o?
How to install new knob for smeg dishwasher Type 10028; mod:?