I have a 24V 5000 Multiplus thats used 99% of the time with solar only DC input via an MPPT. However last few days have had very little sunlight so i turned on AC mains power to try and charge the batteries. I measured the DC current going to the batteries at about 80amps while the charger was charging, than after 60 seconds the unit trips giving me two solid red light for low battery and overload. Then the unit cycles again with the same sequence. This happens with AC loads disconnected and in both ON and Charger Only modes. The charger used to work a month ago, and its about 10 months old from new.
