Pellet grill shows ERR6 and immediately shuts down when attempting to start.

Safety first: Ensure there is no active fire in the cook chamber. Unplug the grill and allow it to cool completely.

• Locate the high-limit switch: On many Rösle pellet grills, a small disc-style high-limit thermostat is mounted on or near the firebox or exhaust area with two wires attached.
• Inspect for damage: Check the switch body and terminals for signs of melting, discoloration, or burned wires.
• Reset if manual-reset type: Some high-limit switches have a small reset button in the center. Once the grill is fully cool, press the button firmly until you feel a click.
• Check wiring: Ensure both wires are firmly attached to the switch and the harness connector at the control board is secure.
• Clean interior: Remove grates, drip tray, and heat diffuser. Scrape and clean grease from the drip tray and interior surfaces to prevent future overheat from grease fires.
• Replace switch if faulty: If the switch will not reset or shows physical damage, replace it with a Rösle-compatible high-limit thermostat of the same temperature rating.
• Test operation: Reassemble, plug in, and start the grill. Confirm that ERR6 is cleared and the grill heats normally.