14
Trouble Shooting
▲
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.
Reversing switch in neutral position.
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.
Make sure reversing switch position is all the way to
one side.
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.
Lock nuts holding blades to blade holders are loose.
7.
Lower housing support 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 lock nuts securely.
7.
Tighten set screw securely.
3. FAN WOBBLES
EXCESSIVELY
1.
Setscrew in downrod support is loose.
2.
Setscrew in downrod/hanger ball assembly is loose.
3.
Screws securing fan blade holders to motor hub are
loose.
4.
Blade holders not seated properly.
5.
Hanger bracket and/or ceiling outlet box is not
securely fastened.
6.
Fan blades out of balance.
1.
Tighten both setscrews securely in downrod support.
2.
Tighten the setscrew in the downrod/hanger ball
assembly.
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 motor housing. If
holders are seated incorrectly, loosen the screws and
retighten.
5.
Tighten the hanger bracket screws to the outlet box,
and secure outlet box.
6.
Interchanging position of fan blades can redistribute
the weight and result in a smoother operation. For
example, exchange blades in positions 1 and 3 or 1 and
4. If this does not improve wobble, exchange 2 and 3 or
2 and 4.
4. NOT ENOUGH AIR
MOVEMENT
1.
If possible, consider using a longer downrod. For
example, use a 12” downrod instead of the 6” downrod
that comes with your fan.
Summary of Contents for Involution FP4520 Series
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