Fuel sending unit fuse

[brizo1533]

Like so many others, I am struggling to get the fuel gage on my 389 S.O. operational. In my case the readout reads 100% full at all times. The schematics indicate that there should be 250 mA fuse in line with the sending unit output. I have also seen posts here that talk about this fuse being near the sending unit. I have pulled up the decking in the cabin and cannot find a fuse in the area before the wires disappear into a large cable bundle (see photos of the area). 

Has anyone been able to locate this fuse? - I would prefer to confirm that it is not blown before I start to disassemble the sending unit.





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[dauntless]

You're correct in that it's a small 250mA fuse and it should be located close to the sender unit which yours appears to not be there. In talking with an electrician who helped me diagnose why my port fuel tank wasn't reading on my 519 S.O., a fuse is not needed and he was surprised that Jeanneau had put a fuse there in the first place. The fuse was fine. It turns out the problem was somewhere in the wiring and the wire from the sender unit to the panel needs to be replaced with a new one. You might want to run another wire directly from the sender unit to the back of the panel to test and see if you have the same issue.