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Choppersean
Oct 18, 2008, 12:46 PM
I am replacing a faulty compressor pressure switch and have a question...

The new switch has different terminal labels / designations. My three wire 120V power cord has Black (hot), White (neutral), Green (ground) wires... correct? The pressure switch has terminals labeled MOTOR, LINE, and GROUND. Ground is obvious, but I am not sure about the others. My gut tells me BLACK = MOTOR and WHITE = LINE. Can anyone confirm if I am correct or not?

Thanks!

KISS
Oct 18, 2008, 01:44 PM
Gut is wrong. The switch interrupts the black wire. LINE (Black) is the side toward the wall. Motor (Black) is the side to the motor.


The "Line cord":

Green - ground
Black(Hot) - LINE of the switch
White(Neutral) - Direct to the motor

Choppersean
Oct 18, 2008, 02:32 PM
Thanks!