Oven emits a strong burning plastic or electrical smell when heating.

Safety first: If you suspect burning wiring or components, switch off the oven at the mains immediately.

• Check for packaging: Ensure all plastic films, cable ties, and cardboard spacers have been removed from inside and around the oven.
• Burn-in cycle: For new ovens, run at high temperature for 30–60 minutes with good ventilation to allow new materials to cure.
• Inspect wiring: If the smell is persistent or accompanied by smoke, remove panels and inspect wiring, connectors, and the control board for signs of overheating. Replace any burnt components.
• Do not ignore: A persistent electrical smell indicates a serious fault; contact a qualified technician if you cannot locate the source.