As part of a complete kitchen refurbishment our builder/kitchen fitter employed a qualified electrician to add a new circuit for our induction hob and add/move electrical sockets. This was signed off and we were given an NICEIC Domestic Electrical Installation Certificate. We've had another electrician come around who was employed by our carpenter (having wardrobes built) to move electrical sockets in our bedroom. He's done the work but cannot sign it off yet as he found a break in the main circuit ring. He will be coming back to diagnose the issue. My question is why didn't the original electrician pick this issue up. I assume he should have tested for this? Some of the new sockets in the kitchen are on this same ring.