N
nickblake
As everything was unplugged this is what is not helping, I'll let you know how I get on when I go back.
if every thing is plugged in the its defiantly a neutral fault as i said , imagin a Lamp 230 volt in ,dont bother to connect the neutral and then test on the opposing lamp terminal of the light bulb to earth you will get 230 v its the same with a lost neutral and if its a supply neutral it will appear as though the live and earth have been reversed this is one reason you should never rely on socket testers and volt sticks treat every appliance as a load live in neutral out no neutral you will have 230 volts on the outgoing of the appliance when you test between neutral and earth