Smoker emits a loud humming or buzzing sound when heating.

Safety first: Unplug the smoker before tightening screws or brackets.

• Level the smoker: Use a level to ensure the smoker sits flat. Adjust feet or move to a stable surface.
• Tighten panels: Check all exterior and interior screws, especially around the heating element and control housing. Tighten as needed.
• Isolate vibration points: Gently press on different areas of the cabinet while the unit is running (use caution) to identify vibrating panels. Add high-temperature pads or adjust the fit to reduce noise.
• Transformer hum: A low-level hum from the control transformer can be normal. If it becomes loud or is accompanied by a burning smell, the control board may need replacement.