3 Phase Motor Troubleshooting

Select a 3 phase motor problem, then click NEXT--> Motor won't start Motor Hesitates when starting Hums, will not start Hums, starts if shaft is turned Motor won't start, shaft turns back and forth rapidly Motor trips breaker or blows fuse instantly Motor vibrates loudly Motor runs very hot Motor won't start sometimes Shaft radial looseness (side to side, up & down) Shaft axial looseness Contactor overload trips Motor won't reverse rotation Motor starts, runs wrong rotation Motor runs too slow Motor runs too fast Shaft is discolored, blue Loud, rubbing or grinding sound Shaft will not turn freely or at all Motor speed is unsteady-surges,sags

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