While you wait for answers, we may have found some information which could help you.
Click here for Hot Water Working
How to fix Kenwood Slimline Dishwasher KDW45X20 with a F1 Er?
K8D45517?
Which way up is the upper spray arm - with holes uppermost o?
Why is my SMEG Dishwasher showing E1 without water in tray?
Hotpoint Start/Pause button flashing?
Simpson Silencio 850 Dishwasher?
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix dishwashers.