While you wait for answers, we may have found some information which could help you.
Click here for Dishwasher Repair FaultyWhy is dishwasher not fully drained of water?
K8D45517?
How to fix Kenwood Slimline Dishwasher KDW45X20 with a F1 Er?
Why is my SMEG Dishwasher showing E1 without water in tray?
Hotpoint Aquarius FDW20 diswasher?
Kenwood Dishwasher KID60S20 leaking from front?