Fitted a new CU today, went with MK (usually do for 'posher' houses).
Everything tested fine, everything powered on OK.
Noticed a buzzing from the 32amp MCB on the cooker circuit and then the MCB tripped. Had a look at the cooker point and it turned out that cooker switch was off, but the chap had plugged the kettle in to boil as soon as he saw power come on. (socket on the cooker point).
Tried it again and as soon as you put load on the MCB it buzzed and very soon tripped.
Swapped the MCB for the one on the sockets and the fault moved with the MCB.
I have never had a dodgy MK MCB before - I was quite surprised. It is almost as if it is a B6 badged as a B32!
Everything tested fine, everything powered on OK.
Noticed a buzzing from the 32amp MCB on the cooker circuit and then the MCB tripped. Had a look at the cooker point and it turned out that cooker switch was off, but the chap had plugged the kettle in to boil as soon as he saw power come on. (socket on the cooker point).
Tried it again and as soon as you put load on the MCB it buzzed and very soon tripped.
Swapped the MCB for the one on the sockets and the fault moved with the MCB.
I have never had a dodgy MK MCB before - I was quite surprised. It is almost as if it is a B6 badged as a B32!