With everyone's advice in mind and the particular relays to pay attention to, I started to go through the Williams startup sequence and checking all the switches and wiring to see if I'd missed anything. I got to the "10c Relay" and tugged on the wires and one of the wires come loose. It seems like it had been poked through the metal hole in the leg of the switch instead of being soldered on. I turned the machine on and pressed start and machine seemed to operate the same even without the wire touching. Mightn't have time to solder it on tonight, but something else to cancel out.
Cheers!
Adam.
