Touch one lead to the case of the motor, and test each motor lead. The ohm meter should read OL, or zero ohms. If a reading of any ohms is observed, you may have a direct short in the motor windings; the motor may be bad.
If your confidant you can test the motor with live current, check the leads at the motor connections while the unit is plugged in and see if your getting between 110 and 120 volt at the motor connection, if you are and the motor is not working then the motor is bad. If not then the problem lies upstream in the power cord or switch
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