View attachment 47704 Interesting post this. I’ve only just started consumer unit change outs.
I have one due very soon - it’s taken me two days so far to test, fault find and rectify. Things like this NE fault on a lighting circuit as shown in image above (Light was still working!). Other faults as well.... a bit of a list.
I just want a full schedule of good test results before swapping out. Dangerous faults found were found and rectified before re-energising. I’ve still a couple of further investigations to carry out.
Then again my customer is very understanding. The vast majority of the wiring is in good condition. He is saving thousands by getting repairs instead of a rewire.
I can’t imagine swapping a CU and ‘hoping for the best’. (Comment not aimed at the OP - but if I’m honest - am taking his dilemma as reinforcement on my desire to thoroughly test first).
Good luck to Elliott.