Help with Manrose Extractor Fan wiring

[pjt]

Hi,
Please could someone advise me on how to wire up my extractor fan.
I had a Vent Axia Wall mounted fan which stopped working.
I`ve bought a Manrose MG100T 12W Fan from Screwfix and tried to connect it up yesterday with Live and Neutral but I couldn't get it to work.

Its runs off a switch (next to the light switch)

I`m guessing I`ve wired it up wrong but I could`nt make sense of the instructions.
I don`t think I need the timer function of the fan? Is that correct if its controlled by the switch?

Sorry for my incompetence!

Attached is manual

 

[stem]

The 'T' of MG100T shows that the fan incorporates a timer. For the timer to operate, it needs three connections:

If at the moment there are only a 'switched live' and a 'neutral' that are presently going to the existing fan then they would connect to 'Neutral Supply' and 'Switched Live supply'. For the fan to work and to use the timer, you then also need a new 'Permanent Live Supply' installing to the third terminal.

If you just want to use the fan without the timer and not add additional wiring, connecting the existing live wire to both of the Live terminals (Permanent and Switched) should do the trick. However, in this case you would probably be better exchanging the fan for one that doesn't have a timer and only requires two wires connecting.

 

[pjt]

The 'T' of MG100T shows that the fan incorporates a timer. For the timer to operate, it needs three connections:

View attachment 157756

If at the moment there are only a 'switched live' and a 'neutral' that are presently going to the existing fan then they would connect to 'Neutral Supply' and 'Switched Live supply'. For the fan to work and to use the timer, you then also need a new 'Permanent Live Supply' installing to the third terminal.

If you just want to use the fan without the timer and not add additional wiring, connecting the existing live wire to both of the Live terminals (Permanent and Switched) should do the trick. However, in this case you would probably be better exchanging the fan for one that doesn't have a timer and only requires two wires connecting.

Thank You.
When you say Connect existing live wire to both of the live terminals, how do i do that when i only have 1 live wire (Brown)?

 

[stem]

 

[pjt]

View attachment 157758

Ahh ok, thanks. So theres a way tyou can thread the live through the first, then out and in to the second?

 

[stem]

The live wire goes into one of the live terminals and then an additional small wire link is required that joins the two live terminals together.

 

[pjt]

The live wire goes into one of the live terminals and then an additional small wire link is required that joins the two live terminals together.

So to link them together I could use some spare electrical wire to link these together or do i have to buy something?

 

[stem]

A piece of wire is what is normally used. The photo below isn't from a fan, but it shows a link between two 'live' terminals.

 

[pjt]

That did the trick. Thank you for all the help

 

[gazzor75]

The 'T' of MG100T shows that the fan incorporates a timer. For the timer to operate, it needs three connections:

View attachment 157756

If at the moment there are only a 'switched live' and a 'neutral' that are presently going to the existing fan then they would connect to 'Neutral Supply' and 'Switched Live supply'. For the fan to work and to use the timer, you then also need a new 'Permanent Live Supply' installing to the third terminal.

If you just want to use the fan without the timer and not add additional wiring, connecting the existing live wire to both of the Live terminals (Permanent and Switched) should do the trick. However, in this case you would probably be better exchanging the fan for one that doesn't have a timer and only requires two wires connecting.

Hi, I know this post is old, however it seems quite similar (in some ways) to my issue - any help really appreciated.
I have a Manrose100H, which works on the Humidity and timer - i think it is wired correctly from the switch, however it seems to operate a bit backwards...
i.e. when light is on, the fan is off - when light is then switched off the fan kicks in, if timer potentiometer is turned up??
in all honesty the room isn't very humid, but i would have thought the fan should be coming on when the light is on, and then staying on a bit when the light is off?
I've checked the N, SL and L - they seem to be correct - but there must be some issue with the wiring
the fan isolator work correctly and cuts off all power
Any pointers, or known issues - if required please ask anything or if you want pics etc...
Thanks in advance

 

[securespark]

Need pix of your fan innards.

The potentiometer might not be for timer but humidity.

 

[EFLImpudence]

but i would have thought the fan should be coming on when the light is on, and then staying on a bit when the light is off?

Yes, plus of course, on whenever humid enough.

I've checked the N, SL and L - they seem to be correct - but there must be some issue with the wiring

Must be.

Pictures of the fan wiring and the other end connections of the fan cable - probably at the light or switch.

 

[gazzor75]

Yes, plus of course, on whenever humid enough.


Must be.

Pictures of the fan wiring and the other end connections of the fan cable - probably at the light or switch.

Thanks again -
I've attached photos - the junction box has 4 cables -> 2 from RHS - lighting radial, and switch; LHS to light; lower to fan via fan isolator.
The fan cable comes in from the bottom, from the isolator switch to the connection block.

Hope that's clear - if you need anything further please just comment - thanks in advance

 

[EFLImpudence]

 

[gazzor75]

Thanks again and in advance.

BTW, good annotations on the pic, dunno how you do that so here's it in words:

Cable 1 - power from radial
Red - A
Black - B
Yellow/green - D

Cable 2 - switch
Red - A
Black - C

Cable 3 - to light
Red - C
Yellow - D
Blue - B

Cable 4 - to fan
Brown - A
Black, sheethed brown - B
Grey sheethed blue - C
Green/yellow - D

The humidity sensor must work, as today when lights were off fan came on when steam was in room.

Cheers

Gary