Hi guys, just after some advice. Went to a job today with the description that one rcd on a dual board has tripped and when closed trips instantly, the customer was watching TV at night and all of a sudden the lights and sockets went under normal running conditions. I arrived today and the rcd, the lights(whole house as it's a bungalow) and the sockets had tripped. I flicked the sockets and the light back on and the rcd tripped I left the lighting circuit off and now the sockets and the rcd are working. I Removed all the bulbs and the rcd still tripped. Normally I would assume a borrowed neutral but as this was working perfectly fine up until last night I'm a little stumped, could this be a possible transformer fault on the spotlights? I have been in the loft and the wiring actually looks pretty good.
Cheers for any advice
Cheers for any advice