<div dir="auto">Fronius install manual says the conduit entry ports need to be packed with putty around the wires. They’re the only manufacturer I know of that requires this. Water vapor roses into the circuit boards. I used to get a couple different error codes until we packed the conduits.</div><div dir="auto"> Good luck, and let us know!</div><div dir="auto"><br></div><div dir="auto"><br></div><div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Thu, May 8, 2025 at 12:22 PM Dave Tedeyan via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"><div dir="ltr"><div><div>Hello, </div><div><br></div><div>There is an installation that I am servicing with the Q.Peak G4 modules, where one <span>cell</span> has some visible <span>damage</span>. I am wondering whether this type <span>damage</span> can lead to a ground fault? The Fronius inverter on site is picking up an "Insulation Resist" error. I am wondering whether this could be the cause, or whether I should look elsewhere in the array. A photo is attached. Any thoughts would be appreciated.</div><div><br></div><div>Thanks!</div><div>Dave</div></div><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><br style="color:rgb(34,34,34)"><div dir="ltr" style="color:rgb(34,34,34)"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"></div></div></div><div dir="ltr"><table cellpadding="0" cellspacing="0" style="border-spacing:0px;border-collapse:collapse;width:525px;font-size:11pt;font-family:Arial,sans-serif;color:rgb(68,68,68)"><tbody style="font-family:Arial,sans-serif"><tr style="font-family:Arial,sans-serif"><td width="125" valign="top" rowspan="6" style="padding:0px 10px 0px 0px;font-size:10pt;border-right-width:1px;border-right-style:solid;width:125px;vertical-align:top;font-family:Arial,sans-serif;border-right-color:rgb(236,189,0)"><a href="https://www.sungineersolar.com/" style="font-family:Arial,sans-serif;background-color:transparent;color:rgb(51,122,183)" target="_blank"><img border="0" alt="Logo" width="105" src="https://sungineersolar.com/wp-content/uploads/2019/08/Logo-Image-Only-1.png" style="border: 0px; vertical-align: middle; width: 105px; height: auto; font-family: Arial, sans-serif;"></a></td><td style="padding:0px 0px 0px 10px;font-family:Arial,sans-serif"><table cellpadding="0" cellspacing="0" style="border-spacing:0px;border-collapse:collapse;font-family:Arial,sans-serif;background-color:transparent"><tbody style="font-family:Arial,sans-serif"><tr style="font-family:Arial,sans-serif"><td valign="top" style="padding:0px 0px 5px 10px;width:400px;vertical-align:top;font-family:Arial,sans-serif"><span style="font-size:11pt;font-weight:700;font-family:Arial,sans-serif;color:rgb(236,189,0)">Dave Tedeyan, P.E.<br></span><span style="font-size:11pt;font-weight:700;font-family:Arial,sans-serif"><font style="font-family:Arial,sans-serif;color:rgb(236,189,0)">Owner | Sungineer Solar</font><br></span></td></tr><tr style="font-family:Arial,sans-serif"><td valign="top" style="padding:5px 0px 5px 10px;font-size:10pt;vertical-align:top;line-height:17px;font-family:Arial,sans-serif"><span style="font-family:Arial,sans-serif;color:rgb(236,189,0)"><span style="font-weight:700;font-family:Arial,sans-serif">p: </span></span><span style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(0,0,0)">he | him | his</span><span style="font-family:Arial,sans-serif;color:rgb(236,189,0)"><span style="font-weight:700;font-family:Arial,sans-serif"><br>a: </span></span><span style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(0,0,0)"><a href="https://www.google.com/maps/search/1653+Slaterville+Rd.+%C2%A0+%7C%C2%A0Ithaca,+NY+14850?entry=gmail&source=g" style="font-family:Arial,sans-serif">1653 Slaterville Rd.</a></span><a href="https://www.google.com/maps/search/1653+Slaterville+Rd.+%C2%A0+%7C%C2%A0Ithaca,+NY+14850?entry=gmail&source=g" style="font-family:Arial,sans-serif"> </a><span style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(0,0,0)"><a href="https://www.google.com/maps/search/1653+Slaterville+Rd.+%C2%A0+%7C%C2%A0Ithaca,+NY+14850?entry=gmail&source=g" style="font-family:Arial,sans-serif">| Ithaca, NY 14850</a></span><br><span style="font-family:Arial,sans-serif;color:rgb(236,189,0)"><span style="font-weight:700;font-family:Arial,sans-serif">w:</span></span><a href="http://www.sungineersolar.com/" rel="noopener" style="font-family:Arial,sans-serif;background-color:transparent;color:rgb(51,122,183)" target="_blank"><span style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(0,0,0)"> www.sungineersolar.com</span></a><br><span style="font-family:Arial,sans-serif;color:rgb(236,189,0)"><span style="font-weight:700;font-family:Arial,sans-serif">c:</span></span><span style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(0,0,0)"> (607) 270-0370</span></td></tr></tbody></table></td></tr></tbody></table></div></div></div></div></div></div>
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