Installation Sheet

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TROUBLESHOOTING
Problem
Possible causes
Solutions
The fan is noisy.
The CFM rating is too high.
Verify that the CFM rating on the fan matches
the size requirements for the room in which
the unit is installed.
The damper is damaged or not
working properly.
Check the damper to ensure it is opening and
closing properly. If the damper has become
damaged or unable to open and close freely,
please call Customer Service.
The bend in the duct is too close
to the fan discharge.
Be sure you do not have any sharp bends in
the exhaust vent duct closer than 24in. to the
outlet duct on the fan unit.
The fan discharge has been
reduced to fit a smaller duct.
Use the recommended size ducting to reduce
fan noise.
The fan unit is not installed or
attached properly.
Be sure the fan is securely attached to the
ceiling joists.
The fan is not operating as
expected.
There is insufficient airflow intake
in the room.
Be sure a door or window is slightly ajar or
opened to allow airflow. The fan is not able to
draw air out of the room without enough
airflow to draw from.
There is insufficient CFM.
Verify that the CFM rating on the fan matches
the size requirements for the room in which
the unit is installed.
Fan Will Not Turn On
A fuse has blown or the circuit
breaker is tripped.
Replace the broken fuse in your fuse box or
reset the breaker.
The internal fan motor plug has
become disconnected.
• Disconnect power source.
• Remove louver and wire box cover.
• Check to ensure that the internal
electrical plug is properly connected to
fan housing.