Greetings Sunny Boy users!I was inspecting a solar array for a school yesterday. They wanted me to investigate a discrepancy between energy produced and energy billed under their PPA with the system owner. All 9 of the Sunny Boy 10000TL-US inverters had functioning LEDs but none of the displays worked. I have seen faded disp
lay screens on this series of inverter before but have never encountered no duisplay whatsoever. The inverters are oriented to face due south, so that will likely fade the display screens.Since lawyers are involved, I chose not to open the inverters without permission of the system owner. If given permission, I would inspect to see if the display has been disconnected internally. Repeated knocking on the front of the inverter could not activate any of the 9 inverter displays.My question to everyone is "How common is it to have no display on your inverter at all?" It seems odd that all 9 inverters would provide no output.Thanks for your inputs.Rich
I had a SMA sunny boy 8000 unit. Never had a blank display though after tapping. The discrepancy you speak of, how big is it? Or to put it simply, is there any power being gended? The fact that 9 are sharing the same problem makes the blankness attributable to "failure" pretty remote.From an install point of view, I don't know why you would disable even if possible. More info is usually better..... even if they had remote monitoring...
Thanks William. That is in line with my past experience when I have inspected systems with SMA inverters.
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