Grill temperature is much lower than the setpoint and food takes too long to cook.

Safety first: Allow the grill to cool before inspecting seals or air intakes.

• Step 1 – Inspect lid seal: Check for gaps between the lid and body. Replace worn or missing gaskets with high‑temperature gasket material compatible with Landmann grills.
• Step 2 – Clean air intake: Locate the combustion air intake near the fan and ensure it is not blocked by grease, ash, or debris.
• Step 3 – Upgrade pellets: Use high‑quality, 100% hardwood pellets and avoid blends with high bark or filler content.
• Step 4 – Check fan strength: Listen for strong airflow during operation. If airflow is weak, replace the combustion fan motor.