To troubleshoot a split-phase motor, apply the following procedure:
- Turn power to motor OFF. ...
- Check to determine if the motor is controlled by a thermal switch. ...
- If the motor does not start, use a voltmeter, such as a Fluke 87V Industrial Multimeter, to check for voltage at the motor terminals.
How do you test a single phase motor with a multimeter?
With a multimeter, measure the resistance between motor frame (body) and earth. A good motor should read less than 0.5 ohms. Any value greater 0.5 ohms indicate trouble with the motor. For single phase motors, the expected voltage is about 230V or 208V depending whether you are using the UK or America voltage system.
How do you test a motor to see if it is bad?
With a multimeter set to low ohms (usually 200), test between each winding terminal and the metal casing of the motor. If there is any reading on any of these then the motor is bad, do not use it. You may find that when it runs ungrounded that the casing becomes live at up to supply voltage.
