mcb not tripping yet faulty?

  1. J

    MCB FAULTY? Help!

    Wonder if anyone can help, my cooker suddenly switched off so logically I went to the fuse box to see what tripped, To my surprise NOTHING had tripped, I had surely expected the 40amp mcb to have tripped so is there something wrong with the mcb despite not tripping? I am puzzled. Is this even...
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