GSI Group PNEG-010, Owner'S Manual

Page: 25 / 48

PNEG-010 Vane Axial Fan 25
8. Troubleshooting
Fan Troubleshooting Chart
Symptom Possible Cause Solution
1. Fan does not run.
1. Blown fuse or breaker in
disconnect switch.
1. Replace fuse or reset breakers.
2. Main power not turned ON.
2. Turn power ON at all disconnects ahead
of the unit.
3. Defective wiring or loose connection.
3. Follow wiring diagram and tighten any
loose connections.
4. Incorrect wire size.
4. See wire size charts on Page 16 for proper
wire size and change if needed.
5. Overload kicked out. 5. Check manual reset, push in to reset.
6. Defective motor. 6. Replace motor.
7. Defective magnetic contactor. 7. Check the magnetic contactor.
2. Fan runs for a short period of
time then shuts off.
1. Undersize wiring.
1. Check to see that power supply wires
are the proper size, contact the local
power company.
2. Low line voltage at the installation
power failure.
2. Call power company after making sure
wire size is correct.
3. Magnetic contactor malfunctioning. 3. Change magnetic contactor.
4. Defective start/stop button. 4. Replace necessary part.
5. Overload setting incorrect. 5. Adjust overload to proper setting.
3. Fan makes ticking noise.
1. Fan blade hitting housing.
1. Stop fan and turn OFF power. Remove
fan guard and check to see if fan blade is
hitting the housing. Adjust motor or fan
blade position to obtain proper clearance.
2. Motor bearing bad. 2. Replace motor bearing.
4. Fan vibrates.
1. Fan not level. 1. Level fan.
2. Fan has dirt deposit on blade. 2. Clean blade.
3. Motor shaft is bent. 3. Replace motor.
4. Blade not mounted properly on shaft. 4. Mount blade properly on shaft.
5. Blade out of balance. 5. Replace or have blade rebalanced.