While you wait for answers, we may have found some information which could help you.
Click here for Cooker Oven FanDelonghi electric oven dead?
How can I fix my Delonghi DFS 090 DO?
DeLonghi (DFG 903) Electric Grill not working?
delonghi oven?
delonghi oven fan working but not heating?
How to fix a Delonghi ESF 461 ST Fan Oven?