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Printed in Taiwan 04/03
Part No. F40BP72340003 Form No BP7234-3
Trouble Shooting
TROUBLE PROBABLE CAUSE SUGGESTED REMEDY
1. Fan will not start. 1. Fuse or circuit breaker blown. 1. Check main and branch circuit fuses or circuit
breakers.
2. Loose power line connections to the fan, or loose 2. Check line wire connections to fan and switch
switch wire connections in the switch housing. wire connections in the switch housing.
WARNING: Make sure main power is turned off.
3. Reversing switch in neutral position. 3. Make sure reversing switch position is all the way
to one side.
2. Fan sounds noisy. 1. Blades not attached to fan. 1. Attach blades to fan before operating.
2. Loose screws in motor housing. 2. Check to make sure all screws in motor housing
are snug (not over-tight).
3. Screws securing fan blade flanges to motor hub 3. Check to make sure the screws which attach
are loose. the fan flanges to the motor hub are tight.
4. Switch housing binding against blade hub. 4. Check to make sure that the switch housing
does not bind against the blade hub.
5. Wire connectors inside switch housing rattling. 5. Check to make sure wire connectors in
switch housing are not rattling against each
other or against the interior wall of the switch
housing.
6. Screws holding blades to flanges are loose. 6. Tighten screws securely.
WARNING: Make sure main power is turned off.
3. Fan wobbles 1. Setscrew in motor coupling is loose. 1. Tighten the setscrew in the motor coupling.
excessively.
2. Setscrew in hanger ball/downrod assembly is 2. Tighten the setscrew in the hanger ball/downrod
loose. assembly.
3. Screws securing fan blade flanges to motor hub 3. Check to be sure screws which attach the fan blade
are loose. flanges to the motor hub are tight.
4. Fan blade flanges not seated properly. 4. Check to be sure the fan blade flanges seat firmly and
uniformly to the surface of the motor hub. If flanges are
seated incorrectly, loosen the flange screws and
retighten
5. Hanger bracket and/or ceiling outlet box is not 5. Tighten the hanger bracket screws to the outlet box,
securely fastened. and/or secure outlet box.
6. Fan blades out of balance. 6. Interchanging an adjacent (side-by-side) blade pair can
redistribute the weight and result in smoother operation.
WARNING: FOR YOUR OWN SAFETY TURN OFF POWER AT FUSE BOX OR CIRCUIT BREAKER
BEFORE TROUBLE SHOOTING YOUR FAN.
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Air Comfort Products
DIVISION OF EMERSON COMPANY
8100 W. Florissant ¥ St. Louis, MO 63136