While you wait for answers, we may have found some information which could help you.
Click here for Delonghi Fan GoingDeLonghi DEM10 fan not spinning?
Delonghi Dem10 starts ok on thermo setting works but cuts out?
dead delonghi dem 10?
pcb diagram for delonghi dem 10?
Does changing 1uf capacitor fix abnormal defrost light behaviour?
Delonghi DEH 10 Fan/motor replacement part required?