A plug-in mains tester is showing a neutral fault on all my sockets.
These sockets have previously tested ok and I have had no electrical work done since the previous test. (I only tested today because I came across my tester whilst looking for something else.)
What could have caused this fault to arise? Is it dangerous?
These sockets have previously tested ok and I have had no electrical work done since the previous test. (I only tested today because I came across my tester whilst looking for something else.)
What could have caused this fault to arise? Is it dangerous?