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Joining cables in wall

Discussion in 'Electrics UK' started by essex123456, 7 Feb 2019.

  1. essex123456

    essex123456

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    The fan and its light go through a three-pole isolator. the fan and its light switch on when the isolator is on and then the light switch is put on, this switches all bathroom lights and the fan on. when the lights are switched off the fan is then on a timer.
     
  2. ban-all-sheds

    ban-all-sheds

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    And when the isolator is off, no lights in the bathroom work.

    That's not the way it's supposed to be wired and it defeats the purpose of having an isolator.
     
  3. essex123456

    essex123456

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    no when the isolator is off the shower light and fan don't work, the others do. as its supposed to.
     
  4. ban-all-sheds

    ban-all-sheds

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    OK - sorry. The way "when the isolator is on and then the light switch is put on, this switches all bathroom lights and the fan on" was worded misled me.
     
  5. essex123456

    essex123456

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    No problem, sometimes its difficult putting it down in words so its clear.
     
  6. conny

    conny

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    If I turn my isolator off neither the fan or lights work. Same in the downstairs WC. Isolator isolates everything.
     
  7. ban-all-sheds

    ban-all-sheds

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    Well that's definitely not the way it's supposed to be wired and it really does defeat the purpose of having an isolator.
     
  8. securespark

    securespark

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    In the days before (and, admittedly, after) TP iso's, bathrooms were wired through a SFCU. The loop would feed the FCU and the bathroom lights and fan would be fed from the load side, with an SP switch to trigger the fan and obviously an SP switch for the lights.

    This gave the option to have the lights on without the fan (eg at night) or the fan on without the lights.
     
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