Oven emits a strong burning smell or smoke during normal cooking (not first‑time use).

Safety first: If you see heavy smoke or suspect an electrical burning smell, switch off the oven and isolate from mains immediately.

• Clean the cavity: Once cool, remove shelves and clean the interior with an oven‑safe cleaner, focusing on elements, walls, and floor where grease has accumulated.
• Inspect elements and wiring: Remove the rear panel and check for discoloured or melting insulation on wires and connectors. Replace any overheated components.
• Check fan motor: If the smell seems to come from the top or rear, inspect the fan motor for signs of overheating (discoloured casing, burnt smell). Replace if suspect.
• Test after cleaning: Run the oven empty at a moderate temperature for 20–30 minutes with good ventilation to burn off any remaining residues.

Warning: Do not ignore persistent electrical burning smells; they indicate a potential fire hazard.