While you wait for answers, we may have found some information which could help you.
Click here for Heating Circuit Problem
How to install new knob for smeg dishwasher Type 10028; mod:?
How to fix Kenwood Slimline Dishwasher KDW45X20 with a F1 Er?
K8D45517?
Dishwasher suddenly failed?
Clear E1 error code on smeg dishwasher with no water or leak?
Simpson Silencio 850 Dishwasher?