All *seems* to be well now, other than the -ve wire
from the battery
compartment needing replacing; the system powers up and seems to "work" - I
It is not uncommon for the electorlyte fro ma leaking battery to creep
along inside the insulatio nfo one of the wires and corrode the wire
strands themselves. This can obviously cause an open-circuit, it can also
cause nasty intermittant faults.
It happens on cars too, the battery wires then gain resistnace so things
go wrong when the starter motor is used (t draws around 600A after all).
That can be 'intersting' to trace if you are not expecting it.
-tony