While you wait for answers, we may have found some information which could help you.
Click here for Dishwasher Error Code F4
K8D45517?
Why is dishwasher not fully drained of water?
Why is my SMEG Dishwasher showing E1 without water in tray?
Kenwood Dishwasher KID60S20 leaking from front?
How to fix Kenwood Slimline Dishwasher KDW45X20 with a F1 Er?
Clear E1 error code on smeg dishwasher with no water or leak?