Actually if I turn the colors chanels to 0, light goes off. when the dimmer only is on 0, there is still some light.
If I clear the playback or the channel I have the dark, if I just use the fadder, it keeps randomly some light ( each time I up the fadder and go back down, the amount of light or color staying on the par is different)
I have only this problem, with this console. Works perfectly with all other consoles / controlers. Also, this problem happends with the 10 pars I've got of this kind.