Bilge Blowers Not Working - Breaker/Fuse Location?

saltydogz

Member
Sep 15, 2008
229
Chesapeake Bay
Boat Info
2008 350 Sundancer
-Prevs Boat: 290 Amberjack 2005
Engines
Twin MerCruiser Horizon 8.1L (375hp) w/ V-Drives
Sea Ray 350 (2008) and this past weekend my bilge blowers both stop working, but both switches (dashboard and on the panel below) light up when switched on. Since there is nothing on the breaker panels for the bilge blowers, I did a quick search thinking it was a breaker/fuse problem, since both blowers are not working, but I am unable to find the breaker/fuse location or just over looked it. Has any one else had this problem or know where the breaker/fuse might be located since I don't see anything label for them on the Main Breaker Panel in the ER?

I plan to do some more checking this weekend, but in need of a little help to where or what I should be looking for and get back on the water quicker.

Thanks for the help in advance.
 
The blowers are operated by a blower control module and that module is integrated with the vessel's fire system. Could be the module has failed or the Fireboy engine shutdown module has an issue.
 
My blower fuse is located in the ER on the fuse panel attached to the forward bulkhead.
 
When I checked out my blowers here is what I found. Starboard Blower was bad, would spin when pushed but then slowed down, blade was rubbing.
Port Blower nothing, checked the wires for power and nothing, dead as a door nail. Moved Port Blower over to Starboard side and runs. So I order two new blowers as replacements.
Started to try to follow the wires for the port blower back to there source using a Power Probe III to check for current, but with all the wires bundled and covered, plus the space in the ER was getting tight I had to stop.

Is there an easier way to trace wires from one end to another?
wiring schematic for Bilge Blowers.PNG

From the wiring diagram they must lead to the Extinguisher Relay that TTmott was talking about. I like to check the wires there and then try to follow them back. But my problem now is where is this relay located I searched under my helm without taking it apart with out any luck. Does anyone know where it might be? It says not to install in the bilge area, so I take that to mean the ER is out.

Since I have good power to the starboard side can I just slit the wires there to feed the blower on the Port side with out any problems?
 
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