GSI Outdoors PNEG-377 - Manual (Page 12)

12
Fan and Heater
SYMPTOM
Fan will not run
Fan runs for a short period
of time then shuts off
Fan makes ticking noise
Fan vibrates
POSSIBLE CAUSE
Blown fuse or breaker in disconnect switch
Main power not turned on
Defective wiring or loose connection
Incorrect wire size
Overload kicked out
Defective motor
Defective magnetic contactor
Undersize wiring
Low line voltage at the installation. Power
failure.
Magnetic contactor malfunctioning.
Defective start/stop button
Wrong heater strip
Fan blade hitting fan housing
Motor bearing bad
Fan not mounted securely to pad.
Fan not level
Fan has dirt deposit on blade
Motor shaft is bent
Blade not mounted properly on shaft
Blade out of balance
SOLUTION
Replace fuses or reset breakers
Turn power on at all disconnects
ahead of the unit
Follow wiring diagram and tighten
any loose connections
See wire size charts for proper sire
size and change if needed
Check manual reset, push in to reset
Replace motor
Check the magnetic contactor
Check to see that power supply wires
are the proper size, contact your local
power company.
Call power company after making
sure wire size is correct
Change magnetic contactor
Replace necessary part
Replace with proper heater strip
Stop fan and turn off electricity.
Remove fan screen and check to see
if fan blade is hitting the housing.
Adjust motor position to obtain proper
clearance.
Replace motor bearing
Mount fan securely
Level fan
Clean blade
Replace motor
Mount blade properly on shaft
Replace or have blade rebalanced
Fan Troubleshooting Chart
FAN TROUBLESHOOTING