Crazy light

[brusuillis]

Hello,
I have a problem with a single light in my house: sometime, randomly, the capacitive keypad (Gewiss 10476) make a beep and switch on the light (connected to an MDT AKU-1616, as a bunch of others).
I already tried changing the keypad with another, same issue.
Where should I start investigating?

Thanks,
Luca

[Beleuchtfix]

Run the bus-monitor and try to find out, what is going on.
good luck Florian