Display shows L1 and grill cannot reach set temperature, often shutting down.

Safety first: Unplug the grill before accessing internal components. Ensure there are no active embers in the firepot when cleaning.

• Step 1 – Check pellet quality and level: Refill the hopper with fresh, dry hardwood pellets. Discard any damp or crumbly pellets.
• Step 2 – Inspect for air leaks: Check the lid seal and body seams. Replace damaged gaskets and ensure the lid closes fully without gaps.
• Step 3 – Clean firepot and burn area: Remove ash and clinkers from the firepot. Excess ash can reduce combustion efficiency and lower temperatures.
• Step 4 – Verify auger feed: Run a prime cycle and confirm that pellets are feeding steadily. If feed is weak or intermittent, inspect the auger motor and tube for jams.
• Step 5 – Check combustion fan speed: Start the grill and listen for the fan. If it sounds weak or slow, clean the fan blades and housing. Replace the fan if it fails to reach full speed.
• Step 6 – Test again at moderate setpoint: Set the grill to a mid‑range temperature (e.g., 250°F) and monitor. If L1 persists despite good pellets, clean firepot, and proper airflow, the control board may not be driving the auger or fan correctly and may need replacement.