JohnRuivo

Hello Everyone. My inverter has gone and is going again through some issues... In the summer os 2023 started having temperature error even being turned off all night and turning on in the morning... supplier gave me no warranty because it was installed too close to the wall and not acording to instructions (by 4-5cm)... measured all temp sensors and seemed to be working fine and found a company that could repair it, send it to repair and took a while and they ended up replaing sensors and some other stuff in the board. This is an off-grid connection. Worked fine for a few weeks and then the screen quit life and soon after started charging the battery at 0.5A max measured on the cables (Pylontech US3000) even at full sun and 5 450W panels... Called a friend that is a professional solar installer (the one that revised all my wiring, protections, etc on my first install) and he found out that no matter what I have no ground on the installation, not even by grounding a socket directly to a new ground pole... If I connect 3 or 4Kw to it it uses all the solar it can and gets the rest from the battery, only the charging and the screen is messed up... Today went to the farm today and the fans are somewhat speeding and I fear it's going to start giving temperature error... I can't even connect to my smartphone since I have no screen, can someone help me connecting to a laptop? Can someone advise me on what to do? I can't have that disconnected for very long because I have an electric fence to keep the goats away from the fruit trees... Any help is apreciated. Thank you very much, João Ruivo