<div dir="auto">Last year we serviced a system with a QCell with that the manufacturer deemed a \u201cdefective junction box\u201d. Photo attached. I had never seen this before. Scary stuff. Luckily, on a ground mount in the middle of a field. Good reminder about DC arc fault mitigation.</div><div dir="auto"><div dir="auto"><img src="cid:1759f3ba513dfe6f1201" style="max-width: 100%;"> </div></div><div dir="auto"><br></div><div dir="auto"><br></div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Nov 6, 2020 at 3:00 PM Jason Szumlanski <<a href="mailto:jason@floridasolardesigngroup.com">jason@floridasolardesigngroup.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"></div><div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I have a client with one QCell 260W module that has been installed for a few years now and has (apparently) had a bad diode since inception (determined via microinverter readings). We concluded with the (thankfully reasonable) homeowner that it isn't worth the expense to investigate further or pursue warranty coverage.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Other than that, no issues, but I have not installed a QCell in at least 2+ years.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Jason Szumlanski</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div><div dir="ltr" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><table border="0" cellpadding="0" cellspacing="0" style="font-family:"helvetica neue",helvetica,arial,sans-serif"><tbody></tbody></table><b><div style="text-align:center"><br></div></b></div></div></div></div></div></div></div></div></div><br></div></div><div dir="ltr"><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Nov 5, 2020 at 11:27 PM AE Solar <<a href="mailto:autonomousenergies@gmail.com" target="_blank">autonomousenergies@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr">Wrenchers,<div>Wondering if anyone has had any experience with bad diodes in QCell panels. Two of our projects this summer had panels that were putting out half of their rated voltage. At first it seemed like it was a defect from the factory, and it was caught upon commissioning the system, but I'm now seeing that another panel has gone bad about two months after install. I've spoken with a few distributors and they said they haven't heard anything about this being a pattern. I'm in the RMA process with QCell, and don't feel like I'm getting complete transparency from them. So far we have 8 defective panels out of 300. It was in two different projects that were months apart. I'm not sure if they were from the same shipment or not. All of them were<font color="#000000" style="background-color:rgb(255,255,255)"> Q.PEAK DUO 400 watt panels. Interested to know if anyone else is having similar experiences? Thanks for any thoughts.</font></div><div><font color="#000000"><span>Adam</span></font></div><div><font color="#000000"><span><br></span></font></div><div><div><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">Adam Katzman<br>Autonomous Energies<br>PO Box 1245</div><div dir="ltr">Kingston, NY 12402<br><a href="https://mailtrack.io/trace/link/5a7d1d523883bb9a2d93a32c368331a49c63f51f?url=http%3A%2F%2Fwww.autonomousenergies.com&userId=1613865&signature=a0c8c76e5fb183fe" target="_blank">www.autonomousenergies.com</a><br>(518) 567-1468<br><br></div></div></div></div></div></div></div></div></div></div>
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</blockquote></div></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div>Chris Sparadeo</div><div><br></div><div><br></div><div>C_802-369-4458</div><div>H_802-728-3059</div><div></div></div></div></div></div></div>