Troubleshooting - Greenheck GJ Installation, Operation And Maintenance Manual

Troubleshooting

Problem
Excessive Noise
Volume Too Low
Excessive Power
Consumption High
Horsepower
Fan Doesn't Operate
Bearings Overheated
6
Jet Fan
Cause
Propeller Rubbing
Housing
Bearings
Propeller Unbalance
Fan
Fan
Electrical Supply
Motor
Lubrication
Corrective Action
Adjust motor plate. Tighten motor plate after centering
propeller in housing.
Replace defective bearing(s). Lubricate bearings.
Tighten collars and fasteners.
Clean all dirt off propeller. Check propeller balance,
rebalance in-place if necessary.
Check propeller for correct rotation.
Check blade pitch.
Check blade pitch.
Check fuses/circuit breakers. Check for switches turned
off or disconnected. Check for correct supply voltage.
Assure motor is correct horsepower and not tripping
overload protector.
Check for excessive or insufficient grease in the bearing.