Hi Michael, I've been there with Solaredge and LG so many times I just call them after it's all installed and make them walk me through the commissioning process. Yes, we are solar professionals and yes we can read and follow instructions BUT, I've sent back fully working inverters after tech support couldn't figure out an issue they programmed. You'll have to sit on call waiting for a couple of hours but DO NOT let them hang up until it's working. While I cannot remember ever seeing this error code, and as you may be suspecting it could do with the; battery wiring either comm or power, the auto transformer either comm or power, or the inverter comm or power. If the owner can get really clear photos and if everything is easy to follow (like different colored comm wires rather than all black wires) then you might be able to see if that is the problem. It could be a bad inverter but it could just be a simple thing that tech support can change remotely. Side note, if folks are waiting a year for interconnection but passed local inspections, can't you start out as zero export and change once the utility gives PTO? Maybe not but it's worth asking.
Jon <https://www.mail-archive.com/search?l=re-wrenches@lists.re-wrenches.org&q=subject:%22%5C%5BRE%5C-wrenches%5C%5D+Solaredge%5C%2FLG+Troubleshooting%22&o=newest> Michael Morningstar <https://www.mail-archive.com/search?l=re-wrenches@lists.re-wrenches.org&q=from:%22Michael+Morningstar%22> Sat, 05 Feb 2022 18:55:31 -0800 <https://www.mail-archive.com/search?l=re-wrenches@lists.re-wrenches.org&q=date:20220205> Wrenches, I received a call from a person who is having issues with his Solaredge/LG system. He’s got a SE7600A-US, StoreEdge connection unit, autotransformer, and LG battery. I’ve never laid hands on SE or LG equipment and could use some guidance here. He’s located several hours from me, and I’m the only Solar Bozo around> His Words: Happy Saturday Michael, thanks again for taking an interest in my solar situation. In June 2020 my 9.920 KW (15,752 kWh estimated production) solar system was installed by now bankrupt "Empire Solar". Thirty-one (31) 320W panels were installed on my roof. My system included a battery back-up system which utilizes an LG Li-Ion RESU10H battery (model #R15563P3SSEG). Unfortunately, more than a year passed after installation for a net metering agreement (NME) with Pacific Power to be put in place. Pacific Power installed a new compatible meter on my home the same week I learned Empire Solar filed for bankruptcy. Empire sent me an email with easy-to-follow instructions for turning my system on. I followed the very simple instructions with zero results. Pacific Power since confirmed my system is not generating any power. Currently, my "Solar Edge" inverter displays error code "2x1A - Faulty AC Relay". The inverter cycles through a 5-minute "wake-up" routine in which it counts down from 300 before it displays the aforementioned error code, then begins the wake-up countdown again and repeats this cycle endlessly until I power off the LG battery. Thanks everyone Michael Morningstar Morningstar Electric PO Box 1494 Mount Shasta, California 96067 530-921-0560 CSLB 949635
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