SYMPTOM
1. Faulty switch
2. Defective motor
3. No power
Fan does not operate
1. Replace switch
2. Replace motor
3. Check to see if power cord
is plugged in. Check fuse or
circuit breaker.
POSSIBLE CAUSE(S)
CORRECTIvE ACTION
1. Loose pulleys or fan blade
2. Intake guard or exhaust
guard excessively dirty
1. Tighten pulley set screw
2. Clean guards
Insufficient air flow
1. Replace motor
2. Replace bearings and seals
3. Move motor to tighten belt
1. Defective motor bearings
2. Defective fan bearings
3. Worn belt
Squealing, slapping or whining
noises while operating
MINOR AND ROUTINE
1. Motor bearings are pre-lubricated ball
bearings. Re-lubrication is not required.
2. Keep guards and blade clean by
vacuuming or wiping periodically. Also
keep motor from accumulating excessive
dust that may cause overheating.
DISASSEMBLY PROCEDURE
1. Disconnect cord from power supply.
2. Remove guard screws.
3. Remove Guard.
NOTE: Upon completion of maintenance,
reinstall components in reverse order as
indicated above.
WhEN ORDERING REPAIR PARTS
always give the following information:
1. Part description
2. Model Number of fan
3. Serial number
MAINTENANCE
TROUBLEShOOTING
WARNING: Disconnect power before servicing
WARNING:
TO REDUCE ThE RISK OF FIRE OR
ELECTRICAL ShOCK DO NOT USE ThIS
FAN WITh ANY SOLID STATE
FAN SPEED CONTROL DEvICE.
