The timer must be set to either a time period or into the manual position.

Please check that there is no foil or tray placed on the base of the oven. This reflects heat back

There can be a delay after an impact or knock before the glass shatters. Please contact the Delonghi Call Centre.

Check the bulb. Replace if faulty.

If it’s a pyrolytic oven it may be in Self Clean mode. If so, the door will unlock when the

Check the mains power or isolation switch.