Extractor Fan not working

All your electrical questions regarding electrics from within the United Kingdom

Moderator: Moderators

Post Reply
yartin
Senior Member
Posts: 1145
Joined: Fri Jun 09, 2017 11:55 am
Has thanked: 136 times
Been thanked: 112 times

Extractor Fan not working

Post by yartin »

Fan in a bathroom is not working. I haven't checked anything and can't till tomorrow but would like some ideas as where to start.
The fan is 12V as says on the fan (low voltage, assume this is ac not dc?), transformer in the loft plus spur fuse.
I need to check the fuse first then if fan is faulty, would the transformer go faulty?
If output voltage at the fan shows around 12V ac on my multi-meter, is it enough to confirm transformer is working?
Ktuludays
Senior Member
Posts: 900
Joined: Mon Oct 27, 2008 11:23 am
Location: Dronfield
Has thanked: 247 times
Been thanked: 208 times

Re: Extractor Fan not working

Post by Ktuludays »

If transformer isn't working there'll be 0v at the fan.

Sent from my HUAWEI VNS-L31 using Tapatalk
These users thanked the author Ktuludays for the post:
yartin
Rating: 7.14%
If the lessons of history teach us anything it is that nobody learns the lessons that history teaches us.
User avatar
Cantseeitfrommyhouse
Senior Member
Posts: 719
Joined: Wed Jan 13, 2010 4:33 pm
Location: North Herts
Has thanked: 36 times
Been thanked: 108 times

Re: Extractor Fan not working

Post by Cantseeitfrommyhouse »

Highly likely the transformer has turned it's toes up yes. All transformers are AC.

Equally likely is the fan motor/pcb itself.

And yes.
These users thanked the author Cantseeitfrommyhouse for the post:
yartin
Rating: 7.14%
yartin
Senior Member
Posts: 1145
Joined: Fri Jun 09, 2017 11:55 am
Has thanked: 136 times
Been thanked: 112 times

Re: Extractor Fan not working

Post by yartin »

It was the transformer, the most awkward one but had to be replaced, all working and job done.
These users thanked the author yartin for the post:
Ktuludays
Rating: 7.14%
Post Reply

Return to “Electric Forum UK”