While you wait for answers, we may have found some information which could help you.
Click here for Heats Pump WaterClear E1 error code on smeg dishwasher with no water or leak?
Should This Be Happening?
Smeg dishwasher DI612CA?
It seems the program is frozen?
How to install new knob for smeg dishwasher Type 10028; mod:?
Smeg Integrated dishwasher?