This Old Switch


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Old 08-13-14, 05:45 AM
A
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This Old Switch

Hello--
I imagine this should be a pretty easy question many of you. I searched the archives and couldn't find a match for my question.
The dimmer in the dining room of our 1920 home failed so I picked up new one recently to replace.
When removing switch plate I noticed there were only two wires (white & black) but the new dimmer also has the green neutral (the old dimmer did not have this third wire).
Could you advise what I need to do to install the new dimmer??
 
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Old 08-13-14, 06:04 AM
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the green wire is a ground wire..hook it to the BARE copper ground wire in the box.

if you do not have a BARE copper ground wire in your box....attach it to the metal box.

if you have a plastic box and no ground just put a wirenut on the end of the green wire.

hook the other 2 wires up to the 2 wires that were on the switch.
 
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Old 08-13-14, 06:05 AM
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oK great. no copper wire coming thru, but the box is metal. Thanks!
 
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Old 08-13-14, 08:29 AM
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but the box is metal
but if it is not grounded no need to connect the green wire. Use a multimeter to determine if it is grounded.
 
 

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