Hi. I've fitted a new electric shower which has its own RCD and a double pole pull switch en route to the actual unit. The shower is not working and the power light which should be on is not on. I have checked the supply and when I check the live feed to earth with a volt meter it is reading 245v. However, when checking the live feed via the neutral rail the voltmeter shows 0 volts. Is there some kind of problem with the supply on the neutral side?