I have identified the left hand power board as being faulty. This powers the two left hand rings and has four terminals, two for each ring. Looking on Connect, the only board they show with four terminals is obsolete and their alternatives have either three or two terminals. Does anybody know if the four terminal version is available from somewhere, or does the three terminal version utilise a common neutral? Both rings have continuity and do not appear to be shorting according to my multimeter, but I wonder if replacement would be prudent anyway.
Thanks, Derek