Troubleshooting; General Troubleshooting - Bigass 4900 Manuel D'installation

General troubleshooting

For questions about your product or customer service inquiries, please call our toll free number (855-490-3048).
Some issues can be resolved before requesting service. Review the below troubleshooting tips before contacting
Customer Service for support.
Symptom
The fan is turning in the wrong direction.
A popping noise is coming from the fan.
Airfoil noise comes from airfoils that are
not tightened to the specified torque.
The fan will not start.
The VFD generates radio frequency
noise (RF).
VFDs generate RF noise in many ways,
but this can be prevented using the
proper wiring practices outlined in the
Wiring Diagrams & Electrical Guidelines
section.
The motor makes noise when fan
speed is increased.
Audible high frequency carrier noise
may be an indicator of a stall condition.
The fan wobbles during operation.
Note: Some motor, gearbox, or drive noise is to be expected and is normal.

TROUBLESHOOTING

Possible solution(s)
To be effective, the fan should be rotating in the counterclockwise
direction when viewed from the floor. If the fan is not rotating in the
counterclockwise direction, press the F/R button on the controller.
Disconnect the fan from power, and then tighten the airfoil fasteners
to 29 ft·lb (39.3 N·m). If the popping still occurs, verify that the airfoils
are not contacting each other. If they are, contact Big Ass Fans
Customer Service.
Verify the following:
• Make sure that all wires are securely connected.
• Verify that supply power is adequate and functional.
If the fan still does not start, contact Customer Service.
Verify the following:
• Do not run your VFD and sensitive equipment on the same power
line.
• Ensure proper grounding at the motor, VFD, and from the VFD to
the utility.
If the noise is still present, contact Customer Service.
Verify motor currents are within limits. See the Technical Specifications
section.
Verify that the mounting structure is rigid enough to support the fan
and that the fan is not being exposed to external air forces.
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