Oooo...eeeeerr - bizarre :shock:
Do all other electrical items - door locks, leccy windows, headlights etc work ok ? - both with just ignition, and when the engine is running ?
I'm not 100% sure, but I think the instrument binnacle is controlled by the BECM/BCU box - someone with Rovacom should be able to test it, Nanocom diags doesn't cover these bits (yet !)