Oster air fryer emits a burning plastic smell during use.

Safety: If you see smoke or the smell is strong and persistent, unplug the unit immediately and do not continue using it until inspected.

• Initial burn-in: For a new fryer, run it empty at 400°F (200°C) for 10–15 minutes with good ventilation to burn off manufacturing residues. A mild odor is normal initially.
• Inspect interior: After cooling, check for any plastic packaging, zip ties, or labels left inside near the heater. Remove any foreign objects.
• Clean heater area: Remove grease and food residue from the heater guard and walls with a non-abrasive cleaner. Grease can produce a burnt smell.
• Internal inspection (advanced): Remove the rear/bottom cover and inspect wiring near the heater for melted insulation or darkened connectors. Tighten or replace any overheated connectors and replace damaged wiring with high-temperature-rated wire.
• Check plastic clearances: Ensure no warped plastic panels are touching the heater. If the heater has deformed nearby plastic, the unit may be unsafe and should be evaluated by a technician.