“How many times have you seen this” was not referring to how rare it might be, quite the contrary. I have seen this many times but never where a voltage indicator failed on all reference points, line to line, lines to neutral and lines to earth.
A good reason then to push hard with the test probes onto the metal, and even scrape the grot off to get good contact. I use three separate tests before assuming dead.
A good reason then to push hard with the test probes onto the metal, and even scrape the grot off to get good contact. I use three separate tests before assuming dead.