13
Trouble Shooting
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WARNING
For your own safety turn off power at fuse box or circuit breaker before trouble shooting your fan.
Trouble
Probable Cause
Suggested Remedy
1. FAN WILL NOT START
1.
Fuse or circuit breaker blown.
2.
Loose power line connections to the fan, or loose
switch wire connections in the switch housing.
3.
Loose connection at motor assembly.
1.
Check main and branch circuit fuses or circuit
breakers.
2.
Check line wire connections to fan and switch wire
connections in the switch housings.
CAUTION: Make sure main power is turned off !
3.
Check that the plug between motor and horizontal
tube assemblies is properly connected.
2. FAN SOUNDS NOISY
1.
Blades not attached to fan.
2.
Loose screws in motor housing.
3.
Screws securing fan blade holders to motor flywheel
are loose.
4.
Wire connectors inside housing rattling.
5.
Motor noise caused by solid state variable speed
control.
6.
Screws holding blades to blade holders are loose.
7.
Rubber flywheel set screw loose.
1.
Attach blades to fan before operating.
2.
Check to make sure all screws in motor housing are
snug (not over-tight).
3.
Check to make sure the screws which attach the fan
blade holders to the motor flywheel are tight.
4.
Check to make sure wire connectors in switch
housing are not rattling against each other or against
the interior wall of the switch housing.
CAUTION: Make sure main power is turned off !
5.
Some fan motors are sensitive to signals from
solid-state variable speed controls. Solid-state controls
are not recommended, choose an alternative control
method.
6.
Tighten screws securely.
7.
Tighten set screw securely.
3. FAN WOBBLES
EXCESSIVELY
1.
Hanger bracket bolt holding the extension pole is
loose.
2.
Bolts holding the connecting harness to the
extension pole are loose.
3.
Screws securing fan blade holders to flywheel are
loose.
4.
Blade holders not seated properly.
5.
Hanger bracket is not rigidly secured to a structural
member.
6.
Fan blades out of balance.
1.
Tighten hanger bracket bolt.
2.
Tighten bolts holding connecting harness to the
extension pole.
3.
Check to be sure screws which attach the fan blade
holders to the flywheel are tight.
4.
Check to be sure the fan blade holders seat firmly
and uniformly to the surface of the flywheel. If holders
are seated incorrectly, loosen the screws and retighten.
5.
Check to see that the hanger bracket is secured to
a structural member with the 5” lag bolt. The hanger
bracket must be securely anchored and should not have
any movement.
6.
Interchanging an adjacent blade pair can redistribute
the weight and result in a smoother operation. A heavy
blade can also be identified by turning off the fan and
seeing if one blade on one or both sides quickly drops
to the down position. Trade out this blade with an
adjacent blade or one of the complementary blades
shipped in the blade set box.