12V equipment problem

[Dm7192]

Carried out a job recently where i was installing a bathroom 12v manrose extractor fan how ever when the power was reinstated it failed to funtion i then replaced the transformer after relising there was no output voltage however even afterwards there was still no function. I may have made an error when trying to rush and only stepped down the switch wire & neutral from 230v to 12v without steppingdown the permanent feed for the fan timer, is it possible that the electronic PCB in the fan its self has been damaged by the 230v supply? Any help on the matter would be appreciated

 

[Richard Burns]

If you have supplied 230V to a 12V circuit then it is very likely you have burnt out the circuit and would need to replace the fan (ensuring the correct supply voltage). If you are lucky there may be an internal fuse on the fan circuit board that you could replace.

 

[Dm7192]

If you have supplied 230V to a 12V circuit then it is very likely you have burnt out the circuit and would need to replace the fan (ensuring the correct supply voltage). If you are lucky there may be an internal fuse on the fan circuit board that you could replace.

ok thanks, unfortunitly no internal fuse, just a standard pcb with capacitors, resistors etc

 

[Brightspark2]

Looks like its probably blown then if 230v has been supplied to it....

 

[SirKit Breaker]

Its not even definitely maybe. It just definite.

Cheers...........Howard