Motor Starter Magnetic Contactor Troubleshooting Diagnosis
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Contactor won't operate
Contactor operates but motor is not running
Contactor operates, trips instantly
Contactor hums
Contactor chatters
Contactor operates but trips sometimes
Contactor does not open, turn off
Line side & load side measured volts are different
Contactor appears cracked, broken, burned, charred
I can't find the motor starter magnetic contactor