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Old 11-24-18, 01:12 PM   #2
pinballlooking
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One good check is to swap the micro inverter with a know good on from a panel next to it that will 100% let you know it is not the microinverter. (this is what Enphase support will have you do)

I called Enphase support on the one that was 20%. They were able to tell from their side it was the microinverter without swapping and approved the RMA over the phone. They had me ship the bad one back to them with a prepaid mailer.

I have had 3 microinverter replacements and one was just producing 20% lower than the others. In this case it was the microinverter not the panel. The other two just had 0 power output.
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