We installed a MultiRS 48/6000 in September 2024. The unit was working perfectly when initially installed and was taking a stable charge of 2kW plus from the generator. In November we updated the firmware versions. Since that update the unit has not been functioning as normal. We continually received “Grid Lost” alarms which we have resolved but the unit no longer accepts a charge from any generator. It sometimes kicks in and charges at <50W, with no stability.
We have reduced and increased the input current limit. We have backdated the Firmware all the way back to 1.16 from 1.2 and tried every version on the way back as well. We also backdated the CerboGX firmware and then even swapped the CerboGX for a new one. Nothing has worked.
We have tried 3 different generators (including the 2 that were charging beforehand) on multiple occasions with no success.
Any advice much appreciated.