Erroneous Water in fuel alarm

[Orcasjane]

I have been having this issue as well. I found for my R31 CB the problem was a bad engine battery. I have now changed the battery and no more water in fuel alarms. I am at the Ranger Tug Rendezvous and attended the Volvo Penta D4 seminar and it was confirmed that low voltage can send erroneous alarms. This may not be your issue but it sure was mine. Good luck!

 

[baz]

I have been having this issue as well. I found for my R31 CB the problem was a bad engine battery. I have now changed the battery and no more water in fuel alarms. I am at the Ranger Tug Rendezvous and attended the Volvo Penta D4 seminar and it was confirmed that low voltage can send erroneous alarms. This may not be your issue but it sure was mine. Good luck!

Now that is an interesting piece of info that in some way addresses my recent case for having the WiF alarm activate.

When my Volvo technician arrived at my slip ready to perform the final Low Speed installation a week ago the very first time I started the engine it hardly cranked over, and I tried at least three times starting with same result. The boat had not been connected to shore power for around 5 days and all electrical loads in the boat were IMO at zero except for the cabin refrigerator that was on #3 setting. I've left boat off shore power for a good week before without having any engine starting (poor cranking) issues. However, this case of low engine cranking both technician and I both agreed seemed to indicate low battery voltage. The voltage was checked and it was 13.6v. Hmmmm, so what was the problem ? For the forth time I crank the engine again and it cranked nicely and started.

So just maybe this low cranking caused a sudden drop in the engine starting battery that lead to the WiF alarm to sound which it did shortly after the engine was running.

I'm now left with what in the first place was the low cranking issue all about? I've had the boat since March of this year, has been in the water ever since, and I only connect the boat to shore power 24 hrs each week over a weekend (this is my process for minimizing under water anode erosion). Just maybe the refrigerator draws too much or that there's some other electrical device drawing power that I'm not aware of.

No matter, I'm now almost certain my WiF alarm was caused by some initial & mysterious low engine battery voltage that started the whole series of WiF alarms during my Low Speed final install.