e125 intermittent power off

I had my e125 power off a few times on my boating this weekend, and I've had this happen a few times before when using my windlass but never anytime else.

Is there any diagnostics available on the e125 to know why it powered off? This time it happened when both engines were running, charging the batteries, so I really would not expect a voltage problem. Any known problems like this with the e125?

I also purchased this remanufactured unit on 7/20/2015, is it still under warranty?

Thanks,
Todd