High-pitched squeal or rattling noise from fan area during cook.

Safety first: Unplug the grill and let it cool before accessing the fan.

Step-by-step checks:

• 1. Access fan: Remove the side or rear service panel to expose the combustion fan.
• 2. Inspect blades: Remove any debris or grease buildup contacting the blades or housing.
• 3. Check mounting: Tighten any loose fan mounting screws and ensure the fan blade is secure on the motor shaft.
• 4. Spin test: Rotate the fan by hand. If it feels rough or wobbly, replace the fan assembly.

When to call a technician: If noise persists after cleaning and tightening, the fan motor likely needs replacement.