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PostPosted: Sun Sep 10, 2017 5:17 pm 
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Hi there, first time post. Thanks for any help you can give.

My inline bathroom extractor fan is dead. It was one of these that came with a light: http://www.screwfix.com/p/manrose-in-line-centrifugal-shower-fan-kit-chrome-100mm/41379.

I've replaced it with a regular ceiling mounted extractor fan without a light, with a timer and hydrostat. One of these: http://www.manrose.com/specifications/Quiet_Fan.pdf

I've tried wiring my new fan using the Neutral (grey), Switched Live (Black) and Permanent Live (Brown) cables from the old fan as per the instructions. The new fan only turns on when I turn the bathroom light off. It doesn't switch on when I turn on the lights.

I've tried wiring the new fan using the Neutral (grey), but switching the Switched Live (Black) and Permanent Live (Brown) cables from the old fan. The new fan stays on permanently, even when we turn the lights off, the shower hasn't been used (non condensate) and when the timer has finished. We have to turn it off using the isolator on the wall.

I've tried wiring the new fan using the wires from the fan-light that came with the old fan. This doesn't work at all.

I've tried wiring the new fan using combinations of wires from the fan-light and old fan but this doesn't work either.

I can't simply replace the old in-line fan without ripping out the ceiling and wallboard.

Has anyone had success replacing an in-line fan and light with a ceiling fan only? I'm beat!

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PostPosted: Sun Sep 10, 2017 5:40 pm 
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Only a guess, i am wondering have you adjusted the hydrostat?

I am thinking the 2nd time you tried is right, but the hydrostat is keeping the fan running

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Take it easy, a forum is only a collection of opinions. Above, are mine.

Which is correct? Metre or Meter? Click the link. to find out more.

No such thing as "Thou shalt put this wire here, Thou shalt put that wire there" .............Take a picture BEFORE you do the job.

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PostPosted: Sun Sep 10, 2017 6:19 pm 
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Hey there,

That might very well be it.

I just adjusted the hydrostat and for the first time it has turned off while the lights are on.

Many thanks.



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PostPosted: Sun Sep 10, 2017 8:37 pm 
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Hi again,

So the replacement extractor fan is working as designed...but in reverse. It turns off using the timer, when the light is on. When the light is turned off, it remains on continuously. It should be working the other way around.

It should be on continuously when the light is on ie your having a shower etc and it should turn off using the timer, when the light is switched off.

Right now it's working the other way around.

Any ideas how to fix this?


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PostPosted: Sun Sep 10, 2017 9:22 pm 
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Connected wrong.

A guess is, live and switched live wrong, BUT it may also be (since its AC) Switched live and neutral wrong, but my brain hurts.
You really should use a multi meter to find out which is live, switched live and neutral.

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Take it easy, a forum is only a collection of opinions. Above, are mine.

Which is correct? Metre or Meter? Click the link. to find out more.

No such thing as "Thou shalt put this wire here, Thou shalt put that wire there" .............Take a picture BEFORE you do the job.

If gloom had a voice, it would be me. :mrgreen:

:idea1: How to post a picture on this forum Click here



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PostPosted: Sun Sep 10, 2017 9:58 pm 
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Thanks mate. Black is neutral, Brown is switched and Grey is permanent live in my set up. Trial and error withouta multimeter. All good. Thanks for the help. :huray:



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