SYNCHRONOUS-MOTOR TROUBLE CHART Symptom and Possible Cause Possible Remedy Motor Will Not Start (a) Faulty connection (a) Inspect for open or poorconnection. (b) Open circuit, one phase (b) Test, locate, and repair. (c) Short circuit, one phase (c) Open and repair. (d) Voltage falls too low (d) Reduce the impedance of the external circuit. […]
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