Display shows ASH or maintenance reminder; grill performance is reduced and temperature swings are large.

Safety first: Ensure the grill is completely cool and unplugged.

• Clean fire pot: Remove grates, diffuser, and drip tray. Vacuum or scoop ash from the fire pot and surrounding burn chamber.
• Clean under drip tray: Remove accumulated ash and debris from the bottom of the cook chamber.
• Check exhaust and intake: Ensure the chimney cap and exhaust path are clear. Clean any ash or soot buildup.
• Reset reminder: After cleaning, follow the manual’s procedure to clear the ASH or maintenance reminder on the controller.