Solar shed

Flashed back to 291.70 runs fine, tried 391.70 again and still gives display communication fault 32 as soon as there is pv voltage, so would assume it’s a firmware thing or a miss match with the extra code

Didn’t think it was interference because 291.70 worked fine no communication error, just 391.70 has the communication error, flashed back to 73.63 and it was fine, I will go back to 291.70 today and see if that works as it did before.

I did flash 391.70 because 291.70 seemed to work ok but it gave a error 32 display communication, but only when the pv was on worked fine without pv.

Might be where I went wrong didn’t realise 91.70 is for single mppt, I have twin is there a version for that? Do have the original 73.63, seems to work ok, only using one mppt input at the moment might be why I didn’t notice. thanks for all the great work you guys are doing

have had the 100w problem again, 11kw inverter 291.70 U1, seems to only happen on a cloudy day same as 90v issue, sat at 100w 360-380v 0.2 amp, as soon as I isolate the inverter battery and solar (have no grid) and reconnect it starts to work seems to stay working even if the next day is cloudy takes a few days then if you get clouds it won’t go over 100w, similar to 90v issue. anything I can test to narrow down issue? do I need to flash U2 (12.21 at the moment) I assume U2 is the display? works great in the sun may try flashing back and see what it does.

5kw clone inverter with 50.01 U1 This inverter works flawlessly, just want to get 11kw to same level

Have a 11kw max 1 with the 90v issue, has 73.63 U1 flashed it to the 291.70 which fixed the 90v, but now sits at 100w all day so the battery doesn’t get charged, if I turn the inverter off and disconnect battery and solar then reconnect it will start charging fine. Anyone else had this issue. Always had poor Solar performance as well compared to my 5kw inverter (can disconnect 11kw connect 5kw inverter and will easily double the solar input. 11kw max sticker