General Troubleshooting; Electrical Troubleshooting - BIG ASS FANS Isis Installation Manual

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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.
WARNING—TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING:
a. Use this unit only in the manner intended by the manufacturer. If you have questions, contact the manufacturer.
b. 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, gearbox, or drive noise is to be expected and is normal.

Electrical troubleshooting

CAUTION: When adjusting the fan direction switch, be careful not to damage the internal components!
Fan status LED definitions
LED Off:
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:
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Isis
®
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 at
1-877-BIG-FANS.
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 at 1-877-BIG-FANS.
OK:
Buss Under / Overvoltage
Motor Over-current
Commutation / Motor Stall
Motor Over-temperature
Drive Over-temperature
Status LED &
Fan Direction
Selector Switch
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