OP
DNS
What about IR results?
Yes I knew someone would ask this, I realized I hadn't put it in my paragraph. To be perfectly honest, I know I should have performed them, but it was all ok on the old board, I know I shouldn't asume. I did a ZS from one of the sockets and it is testing back to the source. So the earth is working correctly. I have spoken the owner who informs me there was a flood from the dishwasher, which ended up exiting a socket which blew everything years ago????? Or it could be this or it could be that when this happened.....I seem to have opened a can of worms, I will have to test every leg on the first floor ring. Busy times ahead.....