[quote author=cupid link=1106342261/0#0 date=1106342261]Today the niece & nephew came over to stay for the weekend
we have a cupboard under the stairs for elec/gas meters ect plus lots of bits &bobs for the kids, my nephew went to the cupboard to get some toys and said UNCLE that BUZZING noise in the cuboard sounds really cool
, i found that it was coming from the mcbs turning each one of in turn i found that it stopped when turning upstairs lighs off ??? tuned it back on no buzzing WTF (all lighting is 6a type c mcbs)
many thanks
cupid [/quote]
Heya Cupid
Sounds like a bit of a concern, buzzing noises are almost always loose connections with resulting arcing, this can cause burning inside the board, and in extreme cases result in a fire.
I would for now at least open up the board, do a quick visual inspection, check for any melted wires, any wires come loose etc
Best do this when the kids aren’t around, and if you feel like you can do it safely and properly.
If not it's calling in an electrician, but you may well find out it's something simple that you can fix, and if it is you just need isolate the entire board via the main switch, take off the cover, fix the problem, fix cover back on and turn main switch back on
Perhaps you could take a picture of the inside of the board for us?
Hope you resolve it, arcing can sometimes come and go, and I
really wouldn’t forget about it just because you can't hear it buzzing at any one time.