Food cooks unevenly (some areas burnt, others undercooked).

Safety first: Unplug and cool the unit before internal inspection.

• Do not overcrowd: Cook in smaller batches and shake the basket halfway through cooking to promote even airflow.
• Clean vents and fan guard: Remove grease and debris from the fan guard and vents to restore proper airflow.
• Check fan speed: Listen to the fan during operation. A weak or slow fan may indicate motor wear; replace the fan motor assembly if necessary.
• Inspect internal baffles: Some Tower models use metal baffles or shields near the heater. Ensure they are correctly positioned and not bent out of shape.