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Posting this in event others have similar experience, ended up a simple fix.
Out wakeboarding at evening, pilot wanted to toot horn for fun, got low voltage alarm instead, gauge read appropriately around 13V, alarm went away upon releasing horn. Went through two more riders with normal operation, ballast pumps emptying did not trip alarm, stored boat on lift for evening. When storing on lift we set automatic bilge panel to Pump On. With intent to use boat again in <12 hrs, left battery selector on 1+2.
Lowered lift in morning and flipped automatic bilge panel to All On. Almost immediately, every light on the ignition and switch panel turned on, no function from any buttons. Over course of a minute groupings of lights turned off until panel went dark, still no response to inputs. Tried flipping automatic bilge switch between All Off and All On a few more times, same outcome. Changed battery selector switch to 1, then 2, retried switching between All Off and All On, same outcome.
Read a handful of forums citing similar symptoms with different solutions, most promising seemed to be swapping out our battery terminals, but upon inspection they really aren't in bad shape. We did not have a battery test kit or voltmeter so decided to take both batteries to a local auto shop and have them tested. Turns out, one of our batteries would not accept a charge, and both were completely dead. Replaced bad battery, got a fresh charge on the other, reinstalled, boat started right away. As an extra precaution we picked up a voltmeter to check that the alternator was functioning properly, toggled the battery selector between 1 and 2, each posted low 14s with engine running which seemed within tolerance of proper function.
In the end pretty simple, hopefully this can help an owner in future.
I am curious how other owners are using their battery selector switch? Reading through the owner's manual, Nautique suggests using 1 ("Primary") for normal operation, and leave 2 ("Secondary") as a reserve. The manual really does not provide a case where an owner should use 1+2. I was always brought up with using both batteries under normal operation, then using 1 or 2 for long-term (more than a couple days) storage to avoid having a boat that won't start.
Out wakeboarding at evening, pilot wanted to toot horn for fun, got low voltage alarm instead, gauge read appropriately around 13V, alarm went away upon releasing horn. Went through two more riders with normal operation, ballast pumps emptying did not trip alarm, stored boat on lift for evening. When storing on lift we set automatic bilge panel to Pump On. With intent to use boat again in <12 hrs, left battery selector on 1+2.
Lowered lift in morning and flipped automatic bilge panel to All On. Almost immediately, every light on the ignition and switch panel turned on, no function from any buttons. Over course of a minute groupings of lights turned off until panel went dark, still no response to inputs. Tried flipping automatic bilge switch between All Off and All On a few more times, same outcome. Changed battery selector switch to 1, then 2, retried switching between All Off and All On, same outcome.
Read a handful of forums citing similar symptoms with different solutions, most promising seemed to be swapping out our battery terminals, but upon inspection they really aren't in bad shape. We did not have a battery test kit or voltmeter so decided to take both batteries to a local auto shop and have them tested. Turns out, one of our batteries would not accept a charge, and both were completely dead. Replaced bad battery, got a fresh charge on the other, reinstalled, boat started right away. As an extra precaution we picked up a voltmeter to check that the alternator was functioning properly, toggled the battery selector between 1 and 2, each posted low 14s with engine running which seemed within tolerance of proper function.
In the end pretty simple, hopefully this can help an owner in future.
I am curious how other owners are using their battery selector switch? Reading through the owner's manual, Nautique suggests using 1 ("Primary") for normal operation, and leave 2 ("Secondary") as a reserve. The manual really does not provide a case where an owner should use 1+2. I was always brought up with using both batteries under normal operation, then using 1 or 2 for long-term (more than a couple days) storage to avoid having a boat that won't start.
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