Electia AM20 38.3376

[per42]

I am trying to get some switches from Electia working. The model no is 38.3375. Accarding to what I have found they are supposed to be using X10 and default setting A1. I have tried that but failed. I have also followed the instructions how to "program" a new code (hold the button down while plugging it in untill led lit, release button and the send an "on" code). That did not work, but if i kept holding down the button while sending the "on" code it turned on. ONCE. After that no on or off. I can of course redo the same thing with the same result.

Does anyone know how to make these work?