JennAir oven has a strong burning plastic or electrical smell when heating

Safety: If you see smoke from control area or smell sharp electrical burning, turn off power immediately.

• New oven burn-in: For new installations, run the oven empty at 400–450°F for 30–60 minutes with good ventilation to burn off manufacturing residues.
• Check for foreign items: Inspect inside the oven cavity, under racks, and around the bottom panel for plastic, zip ties, or packaging left from shipping.
• Inspect wiring: If the smell comes from the control panel or rear, disconnect power and inspect wiring at the elements and control board for melted insulation or loose connections.
• Repair wiring: Replace any burnt wires or connectors with high-temperature rated parts. Replace damaged control boards or terminal blocks as needed.