Check for a Proper Ground  (120V)

Use your Voltmeter to check Voltage at TB1 across the Green and Black Wires.

Note:   The Green Wire may be connected directly to the System Box as shown below, or may be connected to a separate lug at TB1. <Create Link to other "TB1 Types" illustration.>


Do you Read 108 to 132 VAC?

YES         NO