Hi all. I today commissioned a Luxpower 5KVA system. I did the install work during the week. Two strings of 6 JA 455W. Two 100AH Li Batteries and all looks and test perfect. Up to the point I power up the PV side. Without the Inverter I get 260V open circuit, this include loss due to the cable length and the combiner. But as soon as I turn the combiner switch on to the inverter it pulls the PV to 1,8V. Any ideas what to look for?