I replaced the generator start battery 4 months ago and have used it maybe a dozen or so times with no issues. While waiting for a replacement fan for an inverter, and while plugged in to shore power, I turned off that inverter, one of two, to avoid the noisy fan. The other inverter seemed to keep the house batteries charged. Just in case the house batteries did not stay charged, I kept the generator autostart system on.
After about a week in this state, all the generator lights inside started flashing. The only way to disable that was to unplug the Watchdog module. While checking things, I noticed that the generator start battery charge showed 10V!! Those flashing lights must indicate a low voltage situation.
A paragraph of questions: How did this happen? Could it be that Inverter #1 keeps that battery charged and by having that inverter off the battery drained? What kind of load is on that battery that would cause that much discharge? The Watchdog system? Does that battery even get charged other than by the generator? Could it just be a bad battery?
That battery is a critical link to this entire system. As far as I know, there is no other way to start the generator. I've read about emergency links to other batteries in some installations, but I'm pretty sure my coach doesn't have anything like this.
Perhaps this is something I need to take up with Liberty. Thought I should check here first.