Hi there saw your post regarding Amber Energy. If I may ask who did you deal with at Amber Energy? We are having similar sounding issues. We had a Sunsynk inverter with panels and batteries and it has been just issues since the installation. They were supposed to install an 8kw inverter, on the day of installation they rocked up with a 5kw. Then there were issues with the CT coils position and even after that there were still problems because they had connected the CT coil to the incorrect pins in the inverter. Its been a year now and recently our data logger stopped working, according to them they have never seen the issue but if you look online there are plenty complaints regarding this. Our datalogger was collected by Amber Energy, they have had it for 3 weeks with little to no feedback of what the problem is. Frustrated.