If you see something unexpected on a non-contact tester (voltage pen) then it needs checking, your fitter is correct.
It has to be said that pens are fallible www.voltstick.com/how-to-av/videos-and-blogs/voltstick-false-readings
You can get a fault to earth and some are complex to sort so don't touch and ask your electrician
Posted : 22/01/2024 9:52 pm
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