The LED indicator is on, but the light cannot be controlled by a transmitter?
If the LED indicator is on, then the unit is getting AC power. For the light to be controlled by a transmitter, the product must have all internal components properly working and a valid X-10 command must be properly received. First, test if the light turns on and off at all, by controlling the AC power to the PCS unit. If the light turns on, this proves the internal components are working. Now let’s test the X-10 part. The PCS LED should respond to any X-10 signal transmitted (momentary green for the primary address or any scene addresses, or momentary blank for any other X-10 addresses). Try another X-10 transmitter source closer to the PCS unit and see if it works. An excellent test tool is the Signal Analyzer from Monterey Instruments. It will display what X-10 command is being sent and what signal level it is. It also can tell you what the noise level is. If the X-10 signal is too weak, then maybe you should install a coupler/repeater. If the line noise is too high, then a filter
