<div dir="auto">Andrew<div dir="auto">What is the AC Voltage when this occurs, to much VAC will shut down the inverter. It also looks like you are clipping all the inverters during the mid day, is due to low temps or does this always happen. What is the DC MPPT voltage, is it at the upper limit.</div><div dir="auto">Jerry </div><div dir="auto">NABCEP PV inspector </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Feb 25, 2020, 12:02 PM Andrew Truitt <<a href="mailto:atruitt@gmail.com">atruitt@gmail.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><br></div><div>Wrenches,</div><div><br></div><div>I have a couple of Solectria 36TLs at a small community solar site in CO that shut themselves down occasionally for what appears to be no reason. </div><div><br></div><div><div><img src="cid:ii_k729ndv00" alt="image.png" width="493" height="280"><br></div></div><div><br></div><div>Voltages and frequency are normal, firmware is updated, IR scan shows nothing irregular, and the other 2 inverters at the site (50TLs) are fine. It can happen under sunny or cloudy conditions. Solectria will RMA the inverters but before I go out and replace I'm curious if anyone has seen this behavior?</div><br clear="all"><div><div dir="ltr" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><br></div><div><div><span style="color:rgb(64,64,64);font-family:ArialMT,serif,EmojiFont;font-size:10pt">Regards, </span><br></div><div dir="ltr"><br></div><table cellpadding="0" cellspacing="0" style="border-spacing:0px;border-collapse:collapse;color:rgb(68,68,68);width:400px;font-size:9pt;font-family:Arial,sans-serif;line-height:normal"><tbody><tr><td style="padding:0px 0px 6px;font-size:12pt;color:rgb(23,147,206);width:259px"><font face="Tahoma, sans-serif">Andrew Truitt</font><span style="font-family:Arial,sans-serif"> <table cellpadding="0" cellspacing="0" style="color:rgb(68,68,68);font-size:9pt;border-spacing:0px;border-collapse:collapse;width:400px;line-height:normal"><tbody><tr><td colspan="2" width="400" 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