Er09 appears and the grill shuts down when high temperatures are reached.

Immediate safety: If you suspect a grease fire, keep the lid closed, turn the grill OFF, and unplug it. Do NOT open the lid until flames subside. Never use water on a grease fire.

• After cooling: Once the grill is completely cool, remove grates and drip trays. Inspect for heavy grease buildup and signs of flare-ups.
• Clean thoroughly: Scrape and clean the drip tray, grease channels, and interior surfaces. Empty and clean the grease bucket. Ensure grease can flow freely to the bucket.
• Check exhaust and intake: Verify that the chimney cap is not fully closed and that exhaust and air intake openings are clear of soot and debris.
• Inspect high-limit switch: Locate the high-limit temperature switch (usually mounted near the fire pot or on the cook chamber wall). Check for loose wires or signs of overheating. Some switches are manual-reset; press the reset button if present.
• Test switch continuity: With power disconnected, use a multimeter to check continuity across the high-limit switch at room temperature. An open reading on a non-resettable switch indicates it has tripped permanently and must be replaced.
• Replace faulty high-limit: Install a new Enders high-limit temperature switch of the same rating, securing it firmly to the mounting surface for proper sensing.

After cleaning and replacing any failed safety components, perform a low-temperature test cook to confirm stable operation without Er09.