Hello, if anybody can advise please. In our bathroom we have a network of 10 recessed spotlights in the ceiling, a shaver socket and an illuminated mirror. It started a couple of nights ago, that if the bathroom lights were switched on, they would trip, not back at the MCB on the relevant DB board, but at a current operated ELCB. At first, it would only trip if the lights were switched on, but now, the relevant MCB will not reset at all. I identified which particular MCB it is by swiching off all the individual Distribution Boards (there are 3) and MCB's and switching them all back on one by one, till I find the one that trips. Thinking that I may have had a faulty spotlight I have now removed every one and the associated 12v transformer, but the MCB still refuses to reset. I now need to test the shaver socket with the MCB off, the only way I can see to do this is to flatten my shaver off and see if it recharges! Before I call anybody in to test the wiring for me..what else can I do? Thanks for any help.