DIY Doctor

extractor fan

Postby withers » Thu Sep 16, 2010 7:21 pm

youve probably heard this before but ,
im replacing the fan in the bathroom and the one ive bought only has 2 wires coming out of it , both brown (12v)and the existing wiring has 3 wires 2reds 1 black , any ideas how 3 go to 2 , or do i have to re-wire , its a low vaultage unit
thanks for any help ....
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Simply Build It

Postby sparx » Fri Sep 17, 2010 5:54 pm

2 Reds & a Black indicates the original fan was a mains voltage unit with timed overrun.
ie one permanent live, one switched line from light plus Neutral.
If so you can't fit a low voltage fan to them without a transformer. please check on original fan voltage and reply b4 connecting fan.
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