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So yeah I tried the Utility, and it stays on Bypass, but it won't charge to the full but batteries will stay somewhere where it recovers. THere was no change when I set the low voltage alarm 0.2 or 0.4 higher. It sets the mode into Inverter at 23V. I also tried to set the alarm and transfer to...

Thank you for the hint! I'll try and report back!

Will continue this thread as it seems to be the closest what I experience. I am having a ISolar-SMX-II-2.6KW Inverter from EASUN - the yellow one. I have been plugging it to a 2p2s 100Ah 24V Exide Sealed acid batteries connection. I am now using only two of the batteries so 100Ah 24V. The...

Check those two posts of mine: https://diysolarforum.com/threads/easun-smx-ii-3-6kw-old-firmware-needed.50203/#post-754956

To explain a little further! I bought last year on the beginning of the year the EAsun Isolar-SMX-II 3.6kW model, because I did install another 4 230W 24V panels. Together I have had now 8 panels 230W 24V panels, connected in series (270V together) to inverter. I have had another 4 100Ah 12V...

My brand new SMX 3.6kW had a hardware fatal error. The small motherboard that is connected to the PV, is also connected parallel with + and - to the main motherboard. But that is not all. On the right upper corner there is another transversal stick, that also transmits "something". I have had a...