Smoker leaks brown liquid or grease from the bottom or door during cooking.

Safety first: Allow the smoker to cool before cleaning. Grease can be very hot and flammable.

• Check drip tray: Ensure the Ninja drip tray is installed correctly and fully seated. Empty it before each cook.
• Clean grease channels: Remove racks and trays, then clean any built-in grease channels or troughs with warm soapy water to restore flow.
• Level the smoker: Use a spirit level to ensure the smoker is sitting level so grease flows toward the drip tray.
• Inspect for damage: Look for cracks or holes in the drip tray or channels. Replace damaged components.