Display shows ERR HI or temperature overshoot alarm; grill temperature climbs far above the setpoint and may shut down for safety.

Safety first: If you suspect a grease fire or uncontrolled high heat, keep the lid closed, turn the grill OFF, and unplug it. Do not open the lid during an active grease fire; this can cause flare-ups. Have a Class B fire extinguisher nearby.

Steps to address ERR HI:

• 1. Allow the grill to cool: Wait until the temperature drops below 200°F before opening the lid.
• 2. Inspect for grease buildup: Remove grates and drip tray. Clean heavy grease from the drip tray, drain channel, and grease pan. Grease fires often cause over-temp conditions.
• 3. Check the temperature sensor: Inspect the grill RTD/thermocouple for damage or loose mounting. A sensor reading low can cause the controller to overfeed pellets.
• 4. Observe auger behavior: During a test run, watch the fire pot through the access area. If pellets continue to feed heavily even as temperature rises, the auger relay or control board may be stuck.
• 5. Replace faulty components: If the sensor is damaged, replace it. If the auger runs continuously regardless of setpoint, the control board likely needs replacement by a technician.