few hours after I postd I got my answer,
so basically:
- fuse in dimmer are just for decoration , no just jocking, but cannot replaced anyway
- it's not surprising/rare to change the whole dimmer switch
so I will get a new switch now (or a couple just in case)
thanks guys !
Semes like a stupid question, but it seems that my dimmer swithc (stainless still touch from Screwfix) is dead or I gues the fuse.
I have tested the power from the + and - and up to the light and it's fine. So must be problem at the switch box. The box is transparent inside so I can ee CLEARLY...