Re: [Amel Yacht Owners] Re: Strange 24DC leakage
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So we traced the leak back to the bow thruster. Not sure yet what is wong with it. Chances are some carbon dust from the brushes creates the negative-grounding connection.
We built another leak detector with a LED bulb and 2 wires to second the amel detector. We plug one end on the grounding and the other end to the positive of the 24V battery bank. A leak on the negative circuit would light the bulb. We found it's more sensitive than our amel built detector and would show a dim light even when the amel detector wouldn't light (to the naked eye). That may show our amel detector isn't 100% working order. I'll troubleshoot that next.
One aspect of the issue we are still a bit confused about:
Despite disconnecting the big cable that connects the battery bank to the front locker where the bow thruster (and others components like the windlass, etc) are, we would still see a strong leak. We had to disconnect another cable that goes in the engine room to remove the leak altogether. There we thought we had 2 sources of strong leaks....
We failed to trace the ER leak (while forelocker cable disconnected from the battery bank's end), so we concentrated on the forelocker one (while ER cable disconnected). When we eventually disconnected the bow thruster from its end and reconnected everything else from their end in the forelocker, we could see only a very dim leak (and undetected by the amel detector). We then reconnected the ER cable, expecting to see and diagnose the second strong leak, but it was gone...
So is it possible that the ER cable was showing the bow thruster leak despite the main forelocker cable being disconnected?
If yes (and it seems to be the case) then the methodology of disconnecting all-but-one cable from the batteries is somewhat flawed... The ER cable lead was a going roundabout.
On a positive note, we now have a better handle on the cable soup (tidy, but opaque) in the ER. Bring on the labelling machine!
Amel 54 #122
Saint Martin, FWI