Any more ideas? I checked outside and there is only one wire that comes in to the master socket. I have checked all other sockets, and they are wired.
We appreciate that you are inexperienced in this field but what you have written, above, tells us nothing.
The only thing we can deduce from that is there is a cable that originates from underground. Under the external protective hood (that
Zarjar asked you to look beneath), at least two wires from the underground feed cable are crimped to two wires of another cable and the latter cable goes through the wall into the
NTE5/A, where two wires are connected to the
B- &
A-terminals.
Please either take a
clear photograph of what is present under the external protective hood (which coloured wire of which cable is crimped to what coloured wire of the other cable) or describe in
clear detail exactly what you see.
100% Linux and, previously, Unix.