How To Replace A Three Way Light Switch. Maybe you should tell us what you expect the motion sensor to do? The switch it replaces would have its operation reversed by the switch that remains. if it even had the traveler connections needed to.
Learning how to replace a light switch is relatively easy and may be able to save you the cost of hiring an electrician. I'm trying to replace one of the three-way light switches in my garage with a motion sensor. Our two-step process explains how to properly replace a three-way switch.
The feature is handy, but it can be tricky to get the wiring just right.
Determine which switch is not working.
With a three-way dimmer, you can control a light with two switches. For instance, ordinary dimmer switches are not intended for use with most fluorescent. Three-way switches make it easy to control the same light from multiple rooms.
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