MPPT 80-600 Schneider CC shuts off mid day
System ran fine for almost a year and then just started shutting down one of the two charge controllers at random times. Swapped CC's on the two arrays to make sure that wasn't the issue. Same behavior on both arrays. Schneider replaced the CC with a new unit. The unit I received had taken a hard hit during shipping, which I documented and sent the photos to Schneider. I installed the unit anyway and it worked fine for about two weeks, then started doing exactly the same as the last unit. Swapped arrays, same result. I can't find an issue anywhere. No alarms. No codes. Nothing, just shuts off and shows open circuit voltage on the computer interface. I'm stumped and Schneider isn't answering my emails. What should I do? Where do I look now?
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