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Topic starter
May 5, 2025 3:06 pm
Hello, I installed the system below about 6 months ago and all was running fine until the last few days. I am completely off grid and no generator is installed on the system. The inverter shuts down, mostly during the night, indicating warning 25 and 27, ( i also got a brief error 17 after one of my rebooting the whole thing). It then restarts a few minutes later. However my 2 batteries are never below 80% charge. I did a firmware update yesterday but it did not change anything.
Any suggestion at what the cause would be ?
Is there a way to have my system checked online ? (I have the web monitoring and app setup)
My set up:
-7360 Watts of solar input with 2 strings of 8 Blue Sun Solar panels BSM460M-72HBD
-560 Ah battery capacity with 2 x EG4, 48 V wall mount all weather LiFePO Batteries
-6000 Watts inverter with EG4 6000 XP off grid inverter
-totally Off grid and no generator
May 5, 2025 4:56 pm
This issue may be caused by a loose connection. I recommend double-checking all battery cables to ensure none are loose. Have you also tested the battery voltage using a multimeter or voltmeter?
Additionally, make sure the Lithium type in the inverter settings is set to 1, as this is the optimal protocol for communication between the inverter and the WallMount batteries.
Warning 25 means battery high voltage
Warning 27 means battery open (not detecting battery voltage over 40V)
Topic starter
May 5, 2025 6:45 pm
Thank you Eric for the fast answer!
i just checked all connections, which were tight. Batteries with multitester indicate the same as the monitor and display: 53.4 Volts and 99% charge. I just read on the forum that the batteries should go up to 56 V and that has never happened. I changed the battery type to 1 as you recommended. I was on 0 (my manual only offers the options 0= EG4, 2=Pylon, 6= Lux power and 8= Dyness). Will that correct the charge so i can get to 56 V?
The inverter is “normal” at the moment but the problem mostly came in the evening and early morning so i will know more tomorrow.
May 5, 2025 7:56 pm
Yes, 100% should be around 56.2V. You can temporarily switch the inverter to Lead Acid mode and set the Charge Voltage to 56.2V, the Float voltage to 54V, and the Discharge cut-off to approximately 49V. This will help balance the battery cells. Once balanced, you can switch back to SOC (Lithium), and 100% should read as 56.2V.
If you need assistance with this, feel free to let me know — I can also make the adjustments for you.
Topic starter
May 5, 2025 8:38 pm
i went into the monitor.eg4electronics.com and i am a bit overwhelmed… so, yes, i would really appreciate if you could change the parameters for me! What info do you need to access it?
May 5, 2025 9:07 pm
I understand and I'm happy to help! (We do have a guide that explains the website.)
EG4-Monitor-Center-Overview.pdf
I just need either your inverter's serial number or your station name would work.
