While you wait for answers, we may have found some information which could help you.
Click here for Delonghi Coffee MakerHow to replace PCB?
How do I hard reset my delonghi magnifica esam 4400?
Delonghi Esam6600 Primadonna coffee machine?
Delonghi Magnifica 4200 infuser completely jammed at top?
Delonghi ESAM 440 ?
How do I remove the broken steam knob from my Delonghi Icona?