Installed a new C/U now have fault

[Grapejuice18]

New here so sorry if posted in wrong place,
I have installed a new consumer unit as the title says it’s a split load rcd board, anyway to the point one of the rings seems to now have a neutral fault which is taking out one side of the board I have checked all obvious things, touched no appliances since installing only moved the existing wiring to the new board location etc. The thing that I can’t get my head round is I have continuity end to end but on both legs of the ring I have a short between live and neutral, all I can think of now is to IRT the circuit and see maybe this could be down the the install being 30 years old and degraded T&E over time? Maybe the inner cores are now touching? Seems funny tho because the old c/u was old but was still rcd protected so surely that would of seen the fault? And surely both legs wouldn’t have sustained damaged when I’ve moved the cables?
can give me details if required thanks in advance

 

[DPG]

He's on the forum currently.

 

[Grant1987]

Don’t need to do an EICR beforehand, what difference would that make? When upgrading the consumer unit you have to do an install certificate anyway, Going back to the OP you need to use your tester to find the fault now, Split the ring at board then guess mid point one side should be clear with high readings the other 0 by swnds of it. Chase the fault is pretty much really easy when you understand the logic

Have had 2 x dislikes for this post, if you can explain you’re dislike that would be beneficial. I’m open for debate rather than a ?

 

[buzzlightyear]

Have had 2 x dislikes for this post, if you can explain you’re dislike that would be beneficial. I’m open for debate rather than a ?

Forearmed and forewarned comes to mind.

 

[telectrix]

i would not do a full EICR preceding a CU change, but would conduct sufficient tests to save a fault/s biting me in the arse. if the old CU has an upfront RCD that tests as OK , half the battle is won already.

 

[UNG]

It would be nice if the OP could perhaps give us an update?

I'm always suspicious of these threads when the OP hides their profile

 

[Midwest]

It would seem the OP was lulled into the false security of the original board had an RCD in it somewhere. But lets not scare him/her off the forum, and try and be as helpful as possible.

As I said yesterday with my thread, every day is a school learning day.

 

[SJD]

I'm always suspicious of these threads when the OP hides their profile

I suspect the OP only hid their profile after realising we knew he/she had been viewing this thread numerous times but had not responded (shortly after DPG's post #31)....

 

[UNG]

I suspect the OP only hid their profile after realising we knew he/she had been viewing this thread numerous times but had not responded (shortly after DPG's post #31)....

The profile was hidden early on long before post #31, I generally look at the OP and look at the profile of the OP before commenting and I lurked for a while on this one before making my comment

 

[Grant1987]

The profile was hidden early on long before post #31, I generally look at the OP and look at the profile of the OP before commenting and I lurked for a while on this one before making my comment

Yes is frustrating when people post on here with situations like the OP and then don’t give us the outcome or update, I understand if their busy then not always possible to reply straight away but at least reply. Anyhow if it was genuine hope he found the fault