12volt fan help please

[robert0881]

Hi.

I have a 12v fan installed already in the bathroom and a few weeks ago this stopped working. I was pretty sure the fan was broken so I purchased another fan but i cant get it to work. ive checked the cables and i have a 12v feed coming in on a brown and grey wire. Im presuming that somewhere in the loft there is a transformer but surely this must be ok as im geting 12volts coming into the bathroom?
The fan i bought to replace the old one has a L N T connections the previos fan only used Brown and grey and both the earth cable and the black cable had been clipped back out of use any ideas ??

 

[dufjax]

I The replacement is also of the 12v kinds I presume?

It just that I witnessed something similar in the wholesalers a couple of months ago, where this guy had purchased a 230v fan and it didn’t work.
The supply turned out to be SELV.

 

[robert0881]

yes its definately a 12volt fan its emcovent ev4 100mm standard 12volt fan with timer

 

[calv68]

i would check to make sure the black wire is not live first as your fan is a timed model and should have a permaenant and switch live feed but if you only have a switch live feed put a link between L and T but your fan will only run when the light is on it will have no over run

 

[Spudnik]

The timers are built into the transformers on 12V fans.

Therefore, on the secondary side there is just the 12V output.

Check the transformer in the loft because i bet it has been covered in insulation which has caused it to burn out

 

[robert0881]

soon as i took a feed over to the T terminal is all working ok and so is the times.
Thanks guys!!