General Troubleshooting; Electrical Troubleshooting - BIG ASS FANS Isis Guide D'installation

WARNING: When servicing or replacement of a component in the fan requires the removal or disconnection of a safety
device, the safety device is to be reinstalled or remounted as previously installed.
CAUTION: Use this unit only in the manner intended by the manufacturer. If you have questions, contact the manufacturer.
WARNING: Before servicing or cleaning unit, switch power off at the service panel and lock the service disconnecting
means to prevent power from being switched on accidentally. When the service disconnecting means cannot be locked,
securely fasten a prominent warning device, such as a tag, to the service panel.

General troubleshooting

Some issues can be resolved before requesting service. Review the below troubleshooting tips before contacting Customer Service for
support.
Symptom
A popping noise is coming from the fan.
Airfoil noise is a result of airfoils that are
not tightened to the specified torque.
The fan will not start.
Note: Some motor noise is to be expected and is normal.

Electrical troubleshooting

Fan status LED definitions
LED status:
One 1-Second Flash/5 Seconds Off
Two 1-Second Flashes/5 Seconds Off
Three 1-Second Flashes/5 Seconds Off
Four 1-Second Flashes/5 Seconds Off
Five 1-Seconds Flashes/5 Seconds Off
Note: For information on changing the fan direction, see page 32.
Troubleshooting
Possible solution(s)
Switch off power at the service panel and lock the service disconnecting means. (If it
cannot be locked, fasten a prominent warning device.) Tighten the airfoil hardware to
29 ft·lb (39.3 N·m). If popping still occurs, verify that the airfoils are not contacting each
other. If the airfoils are contacting each other, please contact Customer Service.
Verify the following:
• All wires are securely connected.
• The wall controller has power.
• Supply power is adequate and functional.
If the fan still does not start, contact Customer Service.
Definition:
Buss Under / Overvoltage
Motor Over-current
Commutation / Motor Stall
Motor Over-temperature
Drive Over-temperature
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