<div dir="ltr"><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><span class="Q6ibn ng" style="border-style:none;background:none">I</span> Daryl,</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">I have a project that might benefit from ten Sol-Ark <span class="Q6ibn ng" style="border-style:none;background:none">30K</span> <span class="Asgive ng" style="border-style:none;background:none">(max</span> in parallel). Did you work with a consulting engineer on your 60K projects? I am looking for qualified engineers who can handle large systems like this.</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">Best,</div><br clear="all"></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><br>Jason Szumlanski<div><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Principal Solar Designer | Florida Solar Design Group</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">NABCEP Certified Solar Professional (PVIP)</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Florida State Certified Solar Contractor CVC56956</span></div><div><font color="#333333" face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif">Florida Certified Electrical Contractor EC13013208</font></div><div><font color="#333333" face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif"> </font></div><div><font color="#333333" face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif"><br></font></div></div></div></div><br></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Sun, Apr 12, 2026 at 8:46\u202fAM Daryl DeJoy 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:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">We have over 130 Solark inverters installed, from 5k to multiples of 60k's and I have not seen that error at all. I have found their inverters to be reliable as long as their software updates are kept up to date.<div dir="auto">That's just my experience, though. </div><div dir="auto"><br></div><div dir="auto">Daryl DeJoy </div><div dir="auto">NABCEP Certified PVIP since 2006</div><div dir="auto">Island Energy Storage </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Apr 12, 2026, 8:35\u202fAM Jay via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" target="_blank">re-wrenches@lists.re-wrenches.org</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="auto"><div dir="ltr"></div><div dir="ltr">Is this a common problem with Sol Ark inverters? </div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br><blockquote type="cite">On Apr 12, 2026, at 5:40\u202fAM, david quattro via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" rel="noreferrer" target="_blank">re-wrenches@lists.re-wrenches.org</a>> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">\ufeff<div dir="auto">In a similar vein of thought, it may be helpful to only engage one string at a time to hopefully isolate error codes.</div><div dir="auto"><br></div><div dir="auto"><br></div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Apr 11, 2026 at 8:36\u202fAM Jason Szumlanski <<a href="mailto:jason@floridasolardesigngroup.com" rel="noreferrer" target="_blank">jason@floridasolardesigngroup.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><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">You might consider taking this one step further and physically disconnecting one string at a time. Since the error happens multiple times a day, maybe you can isolate the issue to one string.</div></div></div><div dir="ltr"><div><br clear="all"></div><div><div dir="ltr" class="gmail_signature"><div dir="ltr"><br>Jason Szumlanski<div><span style="font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px;color:rgb(51,51,51)">Principal Solar Designer | Florida Solar Design Group</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px"><span style="font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px;color:rgb(51,51,51)">NABCEP Certified Solar Professional (PVIP)</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px"><span style="font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px;color:rgb(51,51,51)">Florida State Certified Solar Contractor CVC56956</span></div><div><font face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif" style="font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;color:rgb(51,51,51)">Florida Certified Electrical Contractor EC13013208</font></div><div><font face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif" style="font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;color:rgb(51,51,51)"> </font></div><div><font face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif" style="font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;color:rgb(51,51,51)"><br></font></div></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Apr 10, 2026 at 7:56\u202fPM david quattro via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" rel="noreferrer" target="_blank">re-wrenches@lists.re-wrenches.org</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">i would swap which strings go into the different MPPT's to see if each specific problem follows the DC string // or do they follow the MPPTs. Another option is kinda a lot of work but might be worth it - take a different inverter out there and "bench test" it with those strings unadulterated</div><div dir="ltr">Good luck and please let us how this one resolves.</div><div><br></div><div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Apr 10, 2026 at 4:05\u202fPM Vince McClellan via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org" rel="noreferrer" target="_blank">re-wrenches@lists.re-wrenches.org</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>Hello Wrenches</div><div>Has anyone else on this list had issues with a Sol-Ark 15K2P randomly shutting down several times a day with an F-20 MPPT overcurrent error? The errors are occurring when the system is well under the max amperage per MPPT of 26 amps. We've had the inverter turn itself off when the online data shows 12.5 amps max. I realize that Sol-Ark's online data updates only every 5 minutes, so I could be possible that there is a spike that the online data isn't showing, but the array is in full sun with the same number of modules and the same string configuration on all 3 MPPT's. </div><div><br></div><div>We are also seeing other anomalies such as MPPT 1 at 12 amps with MPPT 2 and 3 at 22 amps. Again, with the solar array in full sun, no clouds, and no shade. </div><div><br></div><div>Sol-Ark originally thought it was because of an issue with Tigo RSD switches, but we don't use Tigo. We've had way too many issues with Tigo products. </div><div><br></div><div>We've had people suggest that we're seeing the results of an edge of cloud affect, but there are not clouds to cause this. </div><div><br></div><div>We've also tested all the circuits with a insulation tester in every possible configuration, and tested our wiring to insure there were no mistakes by ringing it out with a multimeter. The wiring is good. </div><div><br></div><div>Sol-Ark tech support doesn't seem to know what the issue is, but they are assuring us that it's not their inverter at fault. </div><div><br></div><div>I could use any suggestions that come to mind. I'm not sure what else to try at this point. </div><div><br></div><div>Thank you, </div><div><br></div><div><br></div><div><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><p style="margin:0in;background-image:initial;background-position:initial;background-repeat:initial;font-size:12pt;font-family:"Times New Roman",serif"><span style="font-size:11pt;font-family:Georgia,serif;color:rgb(80,0,80)">Vince
McClellan</span><span style="font-family:Arial,sans-serif"></span></p>
<p style="margin:0in;background-image:initial;background-position:initial;background-repeat:initial;font-size:12pt;font-family:"Times New Roman",serif"><span style="font-size:11pt;font-family:Georgia,serif;color:rgb(80,0,80)">President</span><span style="font-family:Arial,sans-serif"></span></p>
<p style="margin:0in;background-image:initial;background-position:initial;background-repeat:initial;font-size:12pt;font-family:"Times New Roman",serif"><span style="font-size:11pt;font-family:Georgia,serif;color:rgb(80,0,80)">NABCEP PV
Professional</span><span style="font-family:Arial,sans-serif"></span></p>
<p style="margin:0in;background-image:initial;background-position:initial;background-repeat:initial;font-size:12pt;font-family:"Times New Roman",serif"><span style="font-size:11pt;font-family:Georgia,serif;color:rgb(80,0,80)">p:
541-485-8122</span><span style="font-family:Arial,sans-serif"></span></p>
<p style="margin:0in;background-image:initial;background-position:initial;background-repeat:initial;font-size:12pt;font-family:"Times New Roman",serif"><span style="font-size:11pt;font-family:Georgia,serif;color:rgb(80,0,80)">a: <a href="https://www.google.com/maps/search/860%0D%0AConger+St.+Suite+12,.+Eugene,+OR+97402?entry=gmail&source=g" style="font-family:Georgia,serif" rel="noreferrer" target="_blank">860
Conger St. Suite 12,. Eugene, OR 97402</a></span><span style="font-family:Arial,sans-serif"></span></p>
<p style="margin:0in;background-image:initial;background-position:initial;background-repeat:initial;font-size:12pt;font-family:"Times New Roman",serif"><span style="font-size:11pt;font-family:Georgia,serif;color:rgb(80,0,80)">e: </span><span style="font-family:"Times New Roman",serif;color:black"><a href="mailto:vince@solarenergydesgin.com" style="font-family:"Times New Roman",serif;color:blue" rel="noreferrer" target="_blank"><span style="font-size:11pt;font-family:Georgia,serif">vince@solarenergydesgin.com</span></a></span><span style="font-family:Arial,sans-serif"></span></p>
<p style="margin:0in;background-image:initial;background-position:initial;background-repeat:initial;font-size:12pt;font-family:"Times New Roman",serif"><span style="font-size:11pt;font-family:Georgia,serif;color:rgb(80,0,80)">w:
SolarEnergyDesign.com</span><span style="font-family:Arial,sans-serif"></span></p>
<p style="margin:0in;background-image:initial;background-position:initial;background-repeat:initial;font-size:12pt;font-family:"Times New Roman",serif"><span style="font-size:11pt;font-family:Georgia,serif;color:rgb(80,0,80)">CCB#
161672</span><span style="font-family:Arial,sans-serif"></span></p></div><img width="200" height="88" src="https://ci3.googleusercontent.com/mail-sig/AIorK4wC-ZXfQzkibWZNI9aP7aFzUpqgwCEyY-FpsqQY_76qgx9AUxOA5kFpfiX_Jceh2N-O7yCP_sjrlXee"><br><div><p style="margin:0in;background-image:initial;background-position:initial;background-repeat:initial;font-size:12pt;font-family:"Times New Roman",serif"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(80,0,80)">If you have received this email
and are not the intended recipient, please delete this email. Copying or using
any part, content, or attachment of this email is strictly prohibited.</span><span style="font-family:Arial,sans-serif"></span></p></div></div></div></div></div>
_______________________________________________<br>
List sponsored by Redwood Alliance<br>
<br>
Pay optional member dues here: <a href="http://re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://re-wrenches.org</a><br>
<br>
List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" rel="noreferrer" target="_blank">RE-wrenches@lists.re-wrenches.org</a><br>
<br>
Change listserver email address & settings:<br>
<a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br>
<br>
There are two list archives for searching. When one doesn't work, try the other:<br>
<a href="https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/" rel="noreferrer noreferrer" target="_blank">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a><br>
<a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br>
<br>
List rules & etiquette:<br>
<a href="http://www.re-wrenches.org/etiquette.htm" rel="noreferrer noreferrer" target="_blank">http://www.re-wrenches.org/etiquette.htm</a><br>
<br>
Check out or update participant bios:<br>
<a href="http://www.members.re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://www.members.re-wrenches.org</a><br>
<br>
</blockquote></div></div>
_______________________________________________<br>
List sponsored by Redwood Alliance<br>
<br>
Pay optional member dues here: <a href="http://re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://re-wrenches.org</a><br>
<br>
List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" rel="noreferrer" target="_blank">RE-wrenches@lists.re-wrenches.org</a><br>
<br>
Change listserver email address & settings:<br>
<a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br>
<br>
There are two list archives for searching. When one doesn't work, try the other:<br>
<a href="https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/" rel="noreferrer noreferrer" target="_blank">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a><br>
<a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br>
<br>
List rules & etiquette:<br>
<a href="http://www.re-wrenches.org/etiquette.htm" rel="noreferrer noreferrer" target="_blank">http://www.re-wrenches.org/etiquette.htm</a><br>
<br>
Check out or update participant bios:<br>
<a href="http://www.members.re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://www.members.re-wrenches.org</a><br>
<br>
</blockquote></div>
</blockquote></div></div>
<span>_______________________________________________</span><br><span>List sponsored by Redwood Alliance</span><br><span></span><br><span>Pay optional member dues here: <a href="http://re-wrenches.org" rel="noreferrer" target="_blank">http://re-wrenches.org</a></span><br><span></span><br><span>List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" rel="noreferrer" target="_blank">RE-wrenches@lists.re-wrenches.org</a></span><br><span></span><br><span>Change listserver email address & settings:</span><br><span><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" rel="noreferrer" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a></span><br><span></span><br><span>There are two list archives for searching. When one doesn't work, try the other:</span><br><span><a href="https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/" rel="noreferrer" target="_blank">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a></span><br><span><a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" rel="noreferrer" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a></span><br><span></span><br><span>List rules & etiquette:</span><br><span><a href="http://www.re-wrenches.org/etiquette.htm" rel="noreferrer" target="_blank">http://www.re-wrenches.org/etiquette.htm</a></span><br><span></span><br><span>Check out or update participant bios:</span><br><span><a href="http://www.members.re-wrenches.org" rel="noreferrer" target="_blank">http://www.members.re-wrenches.org</a></span><br><span></span><br></div></blockquote></div>_______________________________________________<br>
List sponsored by Redwood Alliance<br>
<br>
Pay optional member dues here: <a href="http://re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://re-wrenches.org</a><br>
<br>
List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" rel="noreferrer" target="_blank">RE-wrenches@lists.re-wrenches.org</a><br>
<br>
Change listserver email address & settings:<br>
<a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br>
<br>
There are two list archives for searching. When one doesn't work, try the other:<br>
<a href="https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/" rel="noreferrer noreferrer" target="_blank">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a><br>
<a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br>
<br>
List rules & etiquette:<br>
<a href="http://www.re-wrenches.org/etiquette.htm" rel="noreferrer noreferrer" target="_blank">http://www.re-wrenches.org/etiquette.htm</a><br>
<br>
Check out or update participant bios:<br>
<a href="http://www.members.re-wrenches.org" rel="noreferrer noreferrer" target="_blank">http://www.members.re-wrenches.org</a><br>
<br>
</blockquote></div>
_______________________________________________<br>
List sponsored by Redwood Alliance<br>
<br>
Pay optional member dues here: <a href="http://re-wrenches.org" rel="noreferrer" target="_blank">http://re-wrenches.org</a><br>
<br>
List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org" target="_blank">RE-wrenches@lists.re-wrenches.org</a><br>
<br>
Change listserver email address & settings:<br>
<a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org" rel="noreferrer" target="_blank">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a><br>
<br>
There are two list archives for searching. When one doesn't work, try the other:<br>
<a href="https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/" rel="noreferrer" target="_blank">https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/</a><br>
<a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org" rel="noreferrer" target="_blank">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a><br>
<br>
List rules & etiquette:<br>
<a href="http://www.re-wrenches.org/etiquette.htm" rel="noreferrer" target="_blank">http://www.re-wrenches.org/etiquette.htm</a><br>
<br>
Check out or update participant bios:<br>
<a href="http://www.members.re-wrenches.org" rel="noreferrer" target="_blank">http://www.members.re-wrenches.org</a><br>
<br>
</blockquote></div>