I have a 5 KVA multi with 2 mppt on it 1 can connected 150/85 and one be direct 150/70.the be direct keeps going into an error #40 we check the panels voltages all ok and battery.
Only one keeps going to error
asked
Why does my mppt keep going into error #40
That charger has become faulty. You should contact your dealer to arrange a replacement.
thanks for you answer, i gathered this but it is connected to cerbo and should automatically adjust this all. this is the second mppt that is doing it on this site
