Changing light control: extra green wire


Old 09-06-15, 06:44 PM
Thread Starter
Join Date: Sep 2015
Location: USA
Posts: 1
Changing light control: extra green wire

I have to change my Ceiling Fan and Light Control (one slider is a light dimmer and the other a fan speed control). When I took the old one out, there was a Black, Red, and Blue wire coming from the switch box, and a Red and two Black wires coming from the wall. They were connected Black to Black, Blue to Black, and Red to Red. The NEW control, which looks exactly the same and has the same functions has the SAME colors with an ADDITIONAL green wire. I connected the Black to Black, Red to Red, and Blue to Black like before, but there was no other wire to attach to green wire to. I looked in the back and could not find a loose wire, or plain copper wire anywhere. So I wrapped electrical tape around the green wire and everything works fine, but is this SAFE? I looked at the diagram that came with the new switch and it shows the green wire going to nothing.. ugh.
Sponsored Links
Old 09-06-15, 07:06 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 46,051
Welcome to the forums.

If you only have red and two black wires in the box then it sounds like your wiring is in conduit. If that is the case see if there is a screw in the back of the box where you can connect the green wire. If there isn't... don't worry. Since the box is metal.... your device will become grounded when you install the two mounting screws.

The additional grounding wire attached to most of the new devices is for grounding in a plastic box where there will be a ground wire.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes