Display shows ERR3 and grill shuts down during cook; temperature drops and fire goes out.

Safety first: Turn OFF and unplug the grill. Allow it to cool fully before cleaning the firepot.

• Check pellet supply: Open the hopper and verify it is at least half full. Refill with dry, high-quality hardwood pellets. Avoid mixed or softwood pellets that produce excess ash.
• Clean firepot: Remove grates and heat diffuser. Vacuum out the firepot and surrounding burn area. Ensure the air holes in the firepot are not blocked by ash or slag.
• Inspect combustion fan: Access the fan compartment (usually behind a side or rear panel). Spin the fan blade by hand to ensure it moves freely. Check for grease buildup or obstructions. Tighten any loose mounting screws.
• Verify fan operation: With panels in place but grates removed, plug in and start the grill. Listen for the combustion fan running during startup. If the fan does not run, suspect a failed fan motor or control board output.
• Restart correctly: After cleaning, start the grill with the lid open until you see steady smoke and flame, then close the lid and set your desired temperature.