12 volt question

[tylerin]

I installed a new bilge blower and it keeps blowing fuses. I have sodered the conections. any help on what to do would be appreicated.
84 Chris Craft 281
Thanks
Scott

[nathan]

Make sure you have the right size fuse and that it is not hooked up wrong.

[Boat Tech]

What size fuse are you using?

Also does the fuse blow right away?? or does it take a few seconds or minutes to blow when it's turned on ???

[tylerin]

Im using a 20 amp fuse and it comes on for a second befor it blows

thanks again for the help

[Boat Tech]

Im using a 20 amp fuse and it comes on for a second befor it blows

thanks again for the help20 amps is to big. If it's blowing within one second with a 20 amp then you probably either have a direct short in the wiring somewhere between the switch at the helm and the blower itself, Or the blower itself may be defective from new.

This link below may help. I Believe i'm used to seeing about an 7.5 amp fues as a standard practice on a normal boat.
http://www.bronek.org/sailing/zamindar/resources/attwood3000.pdf

[tylerin]

I am changing the switch today the blower is good I jumped a wire to the battery. Hope the switch does the trick