Rob,

How do you know the signal works fine? Just because you have a remote chime plugged in somewhere and it works, does not mean much to your floodlight. Now if your flood light is plugged into the same powerline as your chime than it would mean something. I would bet you have a week signal due to distance or noise. Unfortunately without a test meter that measures noise and signal strength there is not a lot you can do but experiment. If you are planning to take your floodlight down than when you do, set the floodlight address to the same as your chime and carefully plug the leads of the floodlight into the outlet of your chime, then send an X10 signal to activate them both. If the chime responds and the floodlight does not than yes your floodlight is bad. Repairs on the floodlight are not that practical when a new one runs $37.

Bill
www.homeautomationnet.com