I have recently had an MPPT Error 40 from the SmartSolar MPPT 250/70 -Tr solar charge controller built in to my EasySolar II GX 48/3000/35-32.
I think I know the set of conditions that caused it and am on my way to fixing them so it will not happen again.
But is the SmartSolar MPPT 250/70 -Tr now just scrap? Or can it be fixed by the local distributor? AEP Pacific who trade as VictronEnergy.co.nz