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

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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?

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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
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1 Answer

up vote 3 down vote accepted

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.

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