Hi, have 4 IQ7 inverters that quit putting out much power starting a week ago. The have been in service for about 10 months. They put out between 12-40 watts throughout the day. Visual inspection they look fine. We had 110F heat last week when it started. Also we had some lightning, not too close but you never know. I have replaced 2 of them and now production is back to where it was 220+ watts. I have 2 bad ones that Enphase wanted to fix with a firmware update.
Enphase pushed firmware 520-00082-r01-v04.20.03 to fix it. I was on 520-00082-r01-v04.18.02 before. It helped but the inverters still drop in power throughout the day. The one error in the log for the bad inverters is "high skip rate". If I had to guess I would say they are at 80% of the original output. If you watch the animation of panel production it looks like the panel is flickering. I suspect this is a hardware issue that they are trying to fix in firmware. Anyone else see this?
Enphase pushed firmware 520-00082-r01-v04.20.03 to fix it. I was on 520-00082-r01-v04.18.02 before. It helped but the inverters still drop in power throughout the day. The one error in the log for the bad inverters is "high skip rate". If I had to guess I would say they are at 80% of the original output. If you watch the animation of panel production it looks like the panel is flickering. I suspect this is a hardware issue that they are trying to fix in firmware. Anyone else see this?
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