powerplay
Senior Member
- Location
- In front of a computer.
I got a call today regarding replacing an existing dimmer switch with a new one. The comment wa that there was no wire attached to the screw in the box, and only black and white conductors. the dimmer came with a green wire and two black ones. If it was a choice of leave the green off the Dimmer disconnected, or connect to the screw... which would be the better choice? I realize connecting to the screw would leave the faceplate screws the same potential as the box metal strap. Is there an issue with the performance of the Electronic dimmer without a good path to ground?...as i doubt he is going to bring bonding/ground into the existing box.