| No. | PROBLEM | POSSIBLE CAUSES | SOLUTION |
|---|
| 1 | Motor won’t start | Motor won’t start | Check the windings and correct. |
| Check the windings and correct. | Reduce load. |
| 2 | Motor overheating or smoking | Overload. | Reduce load or replace with motor of greater horse power. |
| Shorted stator or windings. | Test with ammeter and correct |
| Rotor rubbing on stator. | Check the airgap between stator and rotor, check bearing wear, and repair. |
| 3 | Bearing overheating | Bearing overheating. | Inspect and replace if necessary. |
| Over greasing or under greasing. | Adjust grease amount. |
| Adjust grease amount. | Replace the parts. |
| Shaft cover not assembled well. | Disassemble and reassemble. |
| 4 | Disassemble and reassemble. | Disassemble and reassemble. | Disassemble and reassemble. |
| Damage on the insulation of windings. | Repair the insulation. |
| Windings moistened. | Windings moistened. |
