Firstly, apologies for any linguistic errors below - I hope you get what I am intending to describe.
Last night, the RCD on our Hager "Consumer Unit" tripped. This morning, I started by simply trying to reset the main trip switch, but it kept knocking out again after a few seconds.
After a few failures, I turned off all the individual "zones" (Water Heater, Upstairs Sockets, Downstairs Sockets, etc) then brought them up one by one. It appeared to be (and still probably was, but I'll say why there is some doubt later) one area of downstairs sockets which was the problem - each time I tried to bring up that zone, the main RCD tripped again.
I had some urgent stuff to do today, so I went and did that, and came back later.
When I tried again, I turned everything off that I knew to be in that zone (it could have been possible that I missed something) then brought them back one device at a time. Rather annoyingly, nothing tripped and everything is now running - I hate stuff that fails intermittently
Now whilst I'm very logical with debugging, I'm no electrical expert, so I'm wondering what the issue is/was, namely
- 1. An intermittent fault, or
2. It was a one off spike, but the restart is problematic, e.g. it can't restart the whole lot at once, a la Apollo 13 - https://www.youtube.com/watch?v=3SB_HHp8U9M, or
3. Something else?
Thoughts?
Regards, Newroad