There are many ways to wire a 3-Way Switch. The power can start at a fixture or either of the two switches. Without a switch-wiring-diagram it can be very easy to make a serious mistake that will cause the circuit to malfunction and possibly become a hazard. More about3Way Switch Di...
If only two wires were used and the switch previously turned the light on and off - and if there are no other switches for the same light fixture, then yours is a simple "on-off" light switch - as illustrated in the three examples in our light switch wiring drawings above. Why are...
Using the diagram shown here, a 2-wire Romex cable (black and white wires) is used to provide power to the first switch. From there, 3-wire cables (black, white and red) are used between the switches, with a final 2-wire cable going from the last switch to the light fixture. As ...
is the light fixture itself defective: swap in a simple test bulb or use a neon tester or VOM/DMM to check for power at the light fixture wires are we going to be embarrassed to find that we had a bad fixture bulb? (It's not a fluorescent that might have a bad starter or ballas...