Bilge Blowers

[TruckerTim]

I have a 2000 450 Voyager and none of the blowers are working. Engines on or off, no air flow. Breakers in the salon panel all show on bilge blowers # thru 4 on and not tripped. I crawled behind the starboard fuel tank and I can see the ducts running the the engine bulkhead, but don't see anything that looks like a fan or blower motor. I do see a white, round connection, slightly larger than the duct... Is that the motor?? Thanks

[Midnightsun]

Could be an inline blower that looks like this. I had this in my boat also. https://www.amazon.ca/Attwood-Quiet-Blo ... 4202&psc=1

[KyleR]

Not sure if yours is the same as mine but the relays for fans 2, 3 & 4 are "slaved" off fan #1. In other words, if fan 1 does not have power none of the others will run either. I don't know if this has any bearing on your situation but it took me some digging to figure this out when I was having fan issues. Good luck and keep us posted on what you figure out.

[bud37]

Check out the sticky at the top of the electrical section.....

[TruckerTim]

Good info there and thanks. But I don't see where anyone talks about where the relay's are for the blowers..?

[KyleR]

On mine the relays are located right with the blowers (see pic). The relays are the little black square boxes between and above the blowers.

[mjmason1]

When I had my 450, I had to replace all four blowers. I didn't want to deal with the relays, so I direct wired them. In order for them to work I had to flip on the breakers.
On my 530, again, none of the blowers worked. This time I replaced the blowers and was able to get the relays from a local auto parts store. Now they come on when the stbd key is turned to the accessory position. The relays are right with the blowers.