Smoker temperature fluctuates widely (e.g., swings of 40–60°F) during a cook.

Safety first: Keep hands clear of hot surfaces when checking temperature.

• Minimize door opening: Each door opening can cause large swings. Use the window (if equipped) or external probes instead.
• Shield from wind: Move the smoker to a more sheltered location to reduce wind-driven heat loss.
• Verify sensor: Compare the smoker display to a reliable oven thermometer. If readings differ significantly, replace the cabinet temperature sensor probe.
• Control board replacement: If swings remain large with a good sensor and stable environment, the main control board may be miscontrolling the element and should be replaced.