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the problem is that in italy we dont have a tecnical support, only installer have it,so i dont know f they say me the true or no!!!   here is what a write to Viessman in italy and pylontech:     Good morning, I need your technical assistance.   I have a system consisting of: 5 pylontech h48050 modules 1 pylontech SC0500 controller 1 Viessmann Hybrid 10.0A-3 Viessmann photovoltaic system of 14.5 kW   Everything works ok until a 6th battery was added (the company forgot...) and now the system no longer works well.   The 6th battery was installed between March 14th and 27th (about 25 days ago from now that I write to you)!! Through 2 IOS Apps (SolarPoral and StorageMate) at the beginning, while charging the batteries, I saw that the total never reached more than 20/21% after which it stopped, no longer charged and charged it and the excess put it back on the network.   Slowly but very slowly then (about 25 days later ... which I already find strange and absurd) the charge reached about 41%. The installer who added the battery says your Viessman support told him he has no problems and that the system is ok and just needs to "stabilize / balance" and that it takes some time….   If it took about 25 days to go from 20 to 41%, from 41 to 100% (assuming you get there) will it take more months to stabilize? It seems absurd to me all this time…. And given all the errors I've found, some of which clearly make me think that the added battery has some problem. I state that by removing the new battery everything works perfectly again!!!   This is what happens when I have the whole system empty in the morning. First it starts charging with the maximum power supplied by the photovoltaic (3/4/5 KW) then, when it almost reaches the charge threshold of the previous day (let's say 39%) it starts to decrease       More and more:     Up to stop:     And I see this error:         If I then switch to the StorageMate app, I see that the load has also stopped there:           And I see that there are these errors:           But above all this error:           And these are the battery and Controller lights:     It is clear that something is not working!!   I hope to receive your kind support. Kind regards   ... Mehr anzeigen

leider ist der techniker / installateur nicht sehr gut ... aber bis heute hat die maximale ladung 41% erreicht, also geht es langsam nach oben. Ich hoffe, es ist eine positive Sache und dass Sie so schnell wie möglich zu 100% kommen Danke noch einmal ... Mehr anzeigen

Gibt es jemanden von Viessmann in diesem Forum, der antworten kann? ... Mehr anzeigen