Split-Phase Motor Troubleshooting Techniques

There are cases where a motor suddenly stops during a smooth operation or cannot even start properly. This only means something is wrong, we call it mostly as “trouble” or “fault” as electrical practitioners. Series of tests will surely be needed to accurately locate the trouble. We cannot avoid feeling pressured in cases like this because it may give us a hard time assessing the situation.

Now we are here to give you the step-by-step procedure on how to properly troubleshoot a Split-phase Motor.


buy Proscalpin online Logical Procedure when troubleshooting a Split-Phase Motor:


  1. isotretinoin 10mg tablets express shipping Inspect the motor. Look for mechanical troubles, it may be a bent shaft, burned or broken terminal leads, or cracked end plates.
  2. Test the motor bearing. Try to move the shaft up and down, any movement indicates a worn out bearing. Then try to rotate the shaft by hand (it should rotate freely). A shaft that won’t rotate freely means there’s a bearing trouble, a bent shaft, or improperly assembled motor.
  3. Examine internal wirings. Perform a Ground Test by using a test lamp to determine whether the internal wires are touching the stator or the iron core of the rotor.
  4. Run the motor initially. Energize the motor for a few seconds to check if there is something wrong internally. The shaft may not rotate at all, run noisily/slowly, fuse may blow or windings may produce smoke. Such cases usually indicate burned-out winding. The end-plates should be removed and check the windings carefully. If the windings are burned badly, best option is to turn it over to a motor rewinding shop.

Learn more about split-phase motor.

1 thought on “Split-Phase Motor Troubleshooting Techniques

  1. Pingback: Cosa E L Amor Puro

Leave a Comment