While you wait for answers, we may have found some information which could help you.
Click here for Check Heating ElementClear E1 error code on smeg dishwasher with no water or leak?
Smeg dishwasher DI612CA?
It seems the program is frozen?
smeg dishwasher?
How to install new knob for smeg dishwasher Type 10028; mod:?
how can I fix my dishwasher, SMEG, DC122SS?