OK thanks for that - will be checking the wires between the necessaries when I get my multimeter back!

Are the any published values of what multimeter readings I should be getting for the likes of the solenoids etc when they should be energising? From what I can understand, you can well get a reading but it may not be necessarily the correct one!

(After all this, I really am hoping it is just a broken wire........!)

Thanks once again!!