K8064 DC controlled dimmer flickers

Hi,

I have bought 2 kits 8064 for dimming my light bulbs when it is dark.
Every day around the same time they flicker a while and then the kits are working back normal (= good).
After some investigation of this problem, it seems that this flicker are the CAB signals (CAB = CentraleAfstandsBediening) at 1347Hz.
These signals are used to control some devices by Eandis.

What can I do to stop these flickerings ?
Can I filter this 1347Hz out of the 50Hz - 230-240V ?

Thanks for your help and regards
Bruno Mols