A popping noise is coming from my fan.

Aerofoil noise occurs when aerofoils are not tightened to the specified torque. Disconnect the fan from power and disassemble the cage. Tighten the aerofoil hardware to 29 ft·lb (39.3 N·m). Replace the cage before connecting the fan to power. If popping still occurs, verify that the aerofoils are not contacting each other. If they are, contact Customer Service.

This applies to these products: Pivot 2.0

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