I bought a new light switch that is supposed to allow me to automate my lights easier. Here is what it looks like:

enter image description here

It has blue, black, and white wires. Coming out of my wall, however, I only have a white, black, and ground. The instructions say that I need two white wires or else the switch won't work:

enter image description here

Do I need to have a major rewire operation done to get this light to work? Any suggestions or ideas?

  • 2
    Not a direct answer, but for cases where you have no neutral in the switch (many older installs; NEC 2011 now requires neutral at switches), there are many switches/timers/etc sold as "No neutral required". If you are faced with rewiring, simply using a different switch may be a much cheaper/easier option. – gregmac Nov 4 '13 at 18:49

You'll need to run a grounded (neutral) conductor into the box. It sounds like the power is supplied to the fixture, and only a switch loop is run to the switch. You'll have to run a 3 conductor cable with ground (14/3 or 12/3), from the fixture to the switch. If there is conduit between the fixture box and the switch box, you can simply pull an additional conductor.

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.