@eric Some progress. The contractor pointed out to me that I have 4 strings, and the Sol-Ark 15K has 3 MPPTs. I am allowed to put a max of 2 strings...

Thank you, Eric! I looked at the video and I am confused about the Batt Setup screen. I have three batteries and the video has only one battery. EG...

@eric If anything else might help, please let me know.

@eric Not certain what is meant by protocols, but have attempted to attach two snapshots. If this doesn't answer your question maybe an example ...

@pawnee, from Sol-Ark Error codes: F20 Tz_Dc_OverCurr_Fault It is typically caused by DC current form the battery that is too large (ex: 4 Ton AC Un...