The fan is noisy or silent

The fan is noisy, or not turning

Traeger support, "Diagnosing Induction Fan Issues on a Non-WiFi Grill". The AC fan runs all the time the grill is on, with a soft hum.

• Noisy: something touching the blades (often a cable tie) or grime. Spin it by hand, clean it with compressed air or a damp rag.
• Not turning: spin it by hand, check its orange and white plug, then the wire swap test.
• Melted: a replacement was fitted backwards.
• Remember the second, small fan on the back of the auger motor.