These three common problems plague X10 installations: noise, signal strength, and phase issues.

Noise. With noise, we are referring to something that is generating voltage on the power line. This noise as it approaches 5 volts, compromises the reception ability of the signal, as the noise exceeds 5 volts, it completely masks the signal and the receiver will never hear the command to respond to it.

Weak signals. The frequency that X-10 transmits at is actually the problem. The frequency actually diminishes the signal strength over long distance of power line. You may have no noise, but the distance between the transmitter and receiver is too great, and the strength drops from 5 volts down to 5mv and is too weak for the receiver to hear this.

Phase issues. Sometimes your transmitter is on phase “A” and your receiver is on phase “B.” If you have this issue, you may notice the light works sometimes but not others. For example, when you are using a 240-volt appliance, it is actually bridging the signal and the light responds to the command. Other times, there is not a path or the path is too long and the signal never makes it to the switch.

For better results, read “A More Reliable Installation” on our website.