Oven interior light does not work, but oven heats normally.

Safety first: Disconnect power before changing the bulb. Glass covers can be hot and fragile.

• Replace bulb: Remove the glass cover over the lamp (usually twists off). Replace the bulb with the correct high-temperature oven lamp specified by DeLonghi.
• Inspect socket: Check the lamp holder for signs of burning or corrosion. If damaged, replace the lamp holder.
• Test switch: On models with a manual light switch, test for continuity when switched on. Replace if faulty.
• Control issue: If the bulb and holder are good but the light never comes on, the control board light relay or wiring may be faulty and require professional service.