RichA said:I guess I am suprised that if this is the wrong way round that all my electronic items seem to work. i.e. pc, tv, etc ???
they wont be too bothered about polarity, since 230V is between phase and neutral to the appliance. its just that it will switch the now neutral and not phase which could cause a shock/death. its not something that should be left untreated.
or, it could just be the socket the plumber tested from was mis-wired