Chimney cap or stack extremely hot; discoloration or warping near the exhaust.

Safety first: Use heat-resistant gloves when near the chimney during or after cooking.

• Step 1 – Verify diffuser and drip tray placement: Ensure both are correctly installed to distribute heat.
• Step 2 – Check for blockages: Make sure food, pans, or foil are not blocking airflow to the exhaust.
• Step 3 – Avoid unnecessary maximum-temperature runs: Use high heat only as needed and monitor for signs of grease buildup.
• Step 4 – Inspect for signs of a grease fire: If discoloration is sudden and severe, inspect for past grease fires and clean thoroughly.