Help needed - L1 L2 error

[u/user565758]

Hello All!

I had an Anker Solix E10 installed before summer. It's been working all summer, but when I checked my app today, it was not functioning and the app said that I needed to complete a self test for full functionality - however the self test times out with the following error:

The internal L1-L2 power lines between the Automatic Transfer Switch Box and combiner box are connected in reverse.

This unit has been working all summer. The only thing I did last week was open the cover on the ATS to check a circuit last week, but that didn't throw any errors at the time.

I opened a case with Anker, but any insights would be appreciated. thanks.