Lighting MCB keeps tripping

[snowhead]

Apparently MK B6 mcb are known for failing, see link.
It may latch if you switch it off and on a couple of times, but do that with the RCD under your finger in the OFF position.

If it does latch to Red and works it's still going to need changing later. At least there's a spare next to it for whoever you get in to change it.

IET Forums - Faulty MK MCB's - https://www.------.org/forums/forum/messageview.cfm?catid=205&threadid=29419

 

[littlespark]

2 minute job for a spark to utilise the spare 6A.... but it may be there is still a fault with the circuit that wrecked the first one

 

[STPMotors]

Thanks for all your help guys, really appreciate it.

Very frustrating, but comforting knowing there's nothing I can do to let their be light tonight.

Got hold of a local guy who's popping round Boxing Day.

 

[littlespark]

We hardly use our lighting circuit at this time of year.
Tree lights, candles, little lights on silver sprayed twigs in a vase....

‘It’s the season... La la la”

 

[static zap]

Do all the switches feel normal ?
(contacts may have welded ) ...
Bathroom is main suspect.
( though 2 way hall/landing switches can take a bit of predicting !)

 

[dmxtothemax]

Is it just a standard over current type circuit breaker ?
Or Is it an RCD type breaker ?

 

[telectrix]

We hardly use our lighting circuit at this time of year.
Tree lights, candles, little lights on silver sprayed twigs in a vase....

‘It’s the season... La la la”

that reminds me. got to pay the gas bill. can't be without lights over xmas.

 

[Toneyz]

So what was the cause?

 

[STPMotors]

Just seen your reply.

The circuit breaker was knackered.

Sparky tokd us the root cause traced to some dodgy DIY (before we moved in, I'll add).

The previous owners put shelves up in a cupboard and managed to drill through some cables. Their fix was to pop some tape over it.

All sorted now, it was quite cosy without lights (I'd dangled some Christmas tree lights across the living room ceiling to give a little light).

 

[Toneyz]

Thanks for coming back to the forum and letting us know the outcome many don't.