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It only trips if the actual wire is touched, so once the fitting is in situ everything appears fine. I need to check whether the issue was when earth and neutral connected or just when the bare earth wire end was touched. It sounds like if it’s just earth then I could have a problem?

Thanks Bernard, it was with a screwdriver, so there’s a chance that it could have been earth touching neutral, the diagrams really informative!

Have attached a screenshot of the report, checked the cistern, looked like loads of sediment in the bottom but seems to just be the colour of it (doesn’t move when scraping against it). It sounds like what from you’ve said that it could just be a case of waiting for it to all clear up now we...

Yes, it’s an eSoft pro 20L, it was installed six months ago, but we had the issue prior to this too. Not sure on mineral content, I’ll see if I can dig out our water report when I’m home later.

I’ve just finished replacing a light fitting, as usual I turned off the associated breaker, checked for no voltage with a detector pen, then went ahead with the replacement. However when I touch the earth, the rccb tripped causing the rest of the house’s electric to go off. This can...

We’ve been confused as to why our electric shower sometimes won’t maintain a consistent temperature. Took it apart and there’s a considerable amount of white shell like particles (limescale?!) in both the filter and within the shower hose just before the shower head. After removing the...