FT FIXED!!!!! (Thanks Jules)
The VUK at the casters club has had a new switch put in it (a few weeks back, before we did the outside). Switch needed some adjustment, and the little 'dowl pin' that slots in there was missing. (anyone know if these can be bought?) Anyways, the switch was stuck on, and blew the fuse at F104 which drives half of the solenoids.
So new fuse in, VUK switch adjusted, and presto.......good to go.
Thanks to all for their advice. Time to pack the machines as I'm moving to Canberra!! Removalist truck here tomorrow........
Cheers all.