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

Safety first: Use heat‑resistant gloves when near the chimney during or after cooks.

• 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 max‑temp runs: Use high heat only as needed and monitor for signs of grease buildup.
• Step 4 – Inspect for grease fire signs: If discoloration is sudden and severe, inspect for past grease fires and clean thoroughly.