Your first email stated: "When we switched to battery 1 bank, it stopped. Ideas????"
Your second email stated: "The light flashes once per second on both battery banks and is consistently charging at 14.4 volts." It is difficult to diagnose problems described by email. It is even more difficult when the description changes. As stated before I'm pretty sure that the light is a simple low (and maybe high) voltage indicator. You need a voltmeter to determine actual alternator output voltage at the alternator terminals, each battery voltage at the terminals (while the engine is running AND not running, voltage feeding the engine control panel near the engine, and finally (if possible) voltage at the control panel circuit. Do you have an external voltage regulator? Josh On Sun, Feb 19, 2017, 12:46 PM Frederick G Street via CnC-List < cnc-list@cnc-list.com> wrote: > I wonder if maybe your alternator belt is loose. > > > — Fred > > Frederick G Street > 13925 277th Ave NW > Zimmerman MN 55398 > > f...@postaudio.net > 612.839.6565 cell > > On Feb 19, 2017, at 9:57 AM, Bruce Whitmore via CnC-List < > cnc-list@cnc-list.com> wrote: > > The light flashes once per second on both battery banks and is > consistently charging at 14.4 volts. Should I expect it is a sensor wire, > and how would I find and fix that? > > Or, would it be the regulator? > > Kindest Regards, > > Bruce > 847.404.5092 > > Please forgive any typos as this was sent from my iPhone. > > On Feb 18, 2017, at 11:15 PM, Josh Muckley via CnC-List < > cnc-list@cnc-list.com> wrote: > > I got both of your emails to the list. > > I believe that the light is a simple low voltage indicator. If the > battery gets a shorted cell or a bad connection then the light will > illuminate. If the alternator diodes get blown or the alternator stops > generating enough charge to keep up with the loads then the battery will > begin to discharge and when the voltage goes low enough then the light will > also illuminate. > > Since the symptoms stop when you switch the battery selector then I would > say that the possibility of the alternator being blown or low output is > pretty well eliminated. The possibility of the sensing wires at or > connected to the panel is also pretty well eliminated. I would take a > voltage reading directly on the battery terminals. If it is normal-ish > (11.5 to 12.7) then I would say the battery is fine. Now the remaining > culprit is the wiring and connectors between the battery and the switch. > Maybe even the contacts in the switch. > > Josh Muckley > S/V Sea Hawk > 1989 C&C 37+ > Solomons, MD > > On Feb 18, 2017 8:43 PM, "Bruce Whitmore via CnC-List" < > cnc-list@cnc-list.com> wrote: > > Hello all, > > I'm thinking something might have gone sideways with my last post. Our > Yanmar panel in the cockpit has a red light that flashes red when the > engine is running. The charge is about 14.5, and the batteries don't > appear to be overcharging. What does the flashing mean? There's not much > info in the manuals. Thanks! > > Kindest Regards, > > Bruce > 847.404.5092 > > Please forgive any typos as this was sent from my iPhone. > > _______________________________________________ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > > _______________________________________________ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > > _______________________________________________ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! > > _______________________________________________ > > This list is supported by the generous donations of our members. If you > wish to make a contribution to offset our costs, please go to: > https://www.paypal.me/stumurray > > All Contributions are greatly appreciated! >
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