On 28/03/2021 16:02, ARW wrote:
I seem to be getting a lot of RCD failures when the RCD does not trip
with the test button of with the RCD tester.

But after manually turning the RCD off and back on it works within spec.

So give yours a test. It could save you from a belt.


Would connecting up a low wattage bulb between RCD live and
non-RCD neutral so that a known number of millamps creates
an imbalance - and should trip it ??