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Low voltage lights not working
Posted: Wed Oct 17, 2007 11:25 pm
by outswinger
Can anyone advise please?
We have four 12v 35w spots in our bathroom connected to an extractor fan. Pull the cord, both fan and lights are activated.
Fan is still working lights aren't.
Is this a transformer problem? (output 12v/150va)
The bulbs seem intact and there doesn't appear to be any cabling damage or loose connections. Not sure of rating of connection blocks.
Can I check the output from the transformer? Or am I in the wrong area.
As I work 'away' it's awkward to wait in for a spark. Any ideas before I bite the bullet.
Thanks
Re: Low voltage lights not working
Posted: Thu Oct 18, 2007 9:15 am
by BLAKEY1963
[quote="outswinger"]Can anyone advise please?
We have four 12v 35w spots in our bathroom connected to an extractor fan. Pull the cord, both fan and lights are activated.
Fan is still working lights aren't.
Is this a transformer problem? (output 12v/150va)
The bulbs seem intact and there doesn't appear to be any cabling damage or loose connections. Not sure of rating of connection blocks.
Can I check the output from the transformer? Or am I in the wrong area.
As I work 'away' it's awkward to wait in for a spark. Any ideas before I bite the bullet.
Thanks[/quote]
OUTSWINGER
YOUR FOUR 35W X 4 = 140W , SO RATING SEEMS OK
WITH TRANSFORMER VA OF 150.
AS LONG AS CABLES R CONNECTED OK , NO SIGNS OF OVERHEATING , AND LAMPS R SECURELY CONNECTED INTO HOLDERS ,
THEN COULD BE THE OUTPUT ON TRANSFORMER.
A MULTIMETER SET ON AC VOLTS , COULD CHECK THE TRANSFORMER
4 12 VOLTS COMING OUT OF LOW VOLTAGE SIDE.
CAUTION TO B USED AS MAINS VOLTAGE EXISTS ON THE OTHER SIDE OF TRANSFORMER TERMINALS. ALSO CHECK RATING OF TERMINAL BLOCKS.
IF IN DOUBT GET IN YOUR SPARKY.
BLAKEY1963
Thanks
Posted: Thu Oct 18, 2007 1:00 pm
by outswinger
Thanks Blakey1963 for taking the time to respond.
A weekend job for me and my meter then.
Thanks again
Outswinger
Thanks
Posted: Sat Oct 20, 2007 6:33 pm
by outswinger
Hi Blakey1963
Just come from the loft....checked out transformer as you suggested no power from 12v output, changed transformer.....bingo..fan AND lights.
Thanks again
outswinger
Re: Thanks
Posted: Sun Oct 21, 2007 12:33 am
by BLAKEY1963
[quote="outswinger"]Hi Blakey1963
Just come from the loft....checked out transformer as you suggested no power from 12v output, changed transformer.....bingo..fan AND lights.
Thanks again
outswinger[/quote]
outswinger
so pleased 2 hear u sorted problem out , WELL DONE !.
BLAKEY1963