Does that include the main instruments and the centre console? If so try the dimmer switch sometimes packs up after long periods of non use. Failing that then next stop is the fuse board and check all is correct
Yeah the full lot Chris... I will check the dimmer switch. I see that the fuse that runs the electrics for this also runs the number plate light so if that is not on also should just be the fuse.
I found that the dimmer doesn't like being set just off fully-bright. Either have it really low or on full, otherwise the current passing through the short section of track burns it out... another quality Lucas part