Smoker shows E10 and beeps; user cannot start a cook cycle.

Safety first: Unplug the smoker before adjusting the latch or accessing switches.

• Check door closure: Ensure the door closes fully and evenly. Look for obstructions on the gasket or frame.
• Inspect latch and strike: Examine the metal or plastic strike on the door and the latch mechanism on the body. If bent or cracked, replace the affected part.
• Door switch test: Locate the door switch (often near the latch area). Press it manually and listen for a distinct click. If no click or if it feels loose, the switch may be faulty.
• Wiring check: Verify the switch harness is firmly connected to the main control PCB and not damaged.
• Replacement: Remove mounting screws, disconnect the old switch, and install a new Ninja-compatible door switch. Adjust the latch so the door firmly engages the switch when closed.