Raenier

Hi RayJ, I recently added a new model Growatt SPF 5000 ES to my system. After starting up I've found that my paralleled inverters are not switching the output voltage, it remains at 0V. I installed my first Growatt in 2020, after reading your original post I've updated the firmware of my old inverter to the latest 040/041 firmware (with success). I have comms with my battery, solar panels and grid, no error codes of any kind after start-up with the parallel system. My old inverter is flashed with 40 06 104 and my new inverter (with the chip upgrades) are flashed with 067 01 1.04. Problem is, I can't flash my old inverter with the 067 version FW and visa versa (flashing the new inverter with 40 06 104), in both cases I ended up bricking the inverters. Is there a firmware "marriage" of kind to get firmwares to communicate between 040 and 067 versions? Side note, all settings were checked, double checked and checked again to make sure all major settings between the two inverters are identical. Only settings that don't correspond is the time settings. Both inverters work in single mode as well (so now blown rectifiers, IGBT's or anything).