Ive put in a new electric shower pull the pull switch a the shower is pluseing even in the stop mode.a water is pluseing out to.turn it to cold to bleed it it a go through what they say you need to.a have no joy turn it to stop a the water a electrics are still pluseing i dont get the electrics pluseing on a off none stop untill you pull the pull switch.the pull switch is 45amp a mcb is the same in fusebox.other one it trip the house sockits a lights when pull the pull switch.anyone got any ideas as doing my head in now????