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  1. O

    2 way switch puzzle

    Well there has been some pretty heavy duty building work carried out and a break could have quite feasibly occurred during that, but thinking about it the cable may have been broken during installation as the 2 way switching has never worked. Now it's a long time since A level physics, whats...
  2. O

    2 way switch puzzle

    Hello again, Bingo, no continuity in the wire connecting L2. It's good to know whats wrong, but the cable cannot easily be replaced. So the next question (a long shot) is: Can two way switching be 'fudged' using only the red and yellow wires of the 3C+E cable? Cheers Nick
  3. O

    2 way switch puzzle

    No need to check switch wiring, it's simple and as I say there are two other switches right next door working fine. The only un-common denominator is the type of transformer used to drop the voltage. The two circuits which are working fine have Toroidal transformers, with one input and an output...
  4. O

    2 way switch puzzle

    Hi Guys, please help! I have x2 4 gang MK switches in my kitchen, 3 switches controlling 3 12V lighting circuits. (The 4th control a landing light and outside light, which we can ignore). My problem is this: One of the lighting circuits will not switch correctly. The 2nd switch, connected to...
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