I’m just copying a note from Will as he has updated his KH series inverters to the latest master and manager firmware and the inverters are now stuck with a grid voltage fault even when confirmed that mains power is normal to the plug.
He is going to downgrade and test again but it looks like there might be an issue with these versions so hold fire right now.
UPDATE: Downgrading resolved the grid lost issue - for now hold off upgrading to these versions.
