Grill displays E9 and shuts down; internal diagnostics indicate a general control board fault.

Safety first: Unplug the grill before touching any internal electronics. If you smell burning or see smoke, do not attempt to power the grill again until inspected.

• Visual inspection: Remove the control panel cover and inspect the control board. Look for burnt components, bulging capacitors, or charred areas.
• Check all connectors: Ensure all harnesses (auger, fan, igniter, RTD, power input) are fully seated and not reversed or damaged. A shorted peripheral can sometimes trigger a board fault.
• Test outlet and surge protection: Verify the outlet voltage is within spec and consider using a surge protector to prevent future damage.
• Isolate peripherals (advanced): With the grill unplugged, disconnect non-essential loads (e.g., igniter, fan) and then power up to see if E9 clears. If the error persists with loads disconnected, the board itself is defective.
• Replace control board: Order a Weber-compatible replacement control board for your exact model. Transfer one connector at a time from the old board to the new one to avoid miswiring. Secure the board and reassemble the panel.
• Test operation: Power on and run a low-temperature test cook to confirm stable operation.