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No NoiseA. Check the input power to the motor and motor starter.
B. Check the motor and starter overload devices.
C. Check the motor and starter wiring connections.
D. Check the driven load.
E. Check the size of the motor versus the load.
F. Check the motor windings.
Starts If Shaft Is Spun
A. This will occur with a split phase or capacitor start motor only.
B. Check to see if the start winding is burned out.
- If so, replace the winding or rewind motor completely.
- Disassemble motor in order to make the appropriate repairs.
- Disassemble motor in order to make the appropriate repair.
Hums / Heats Up
A. Verify correct voltage
B. Check starting windings/switch
C. Check for single phasing
D. The rotor or bearings may be locked.
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