The battery was showing an exclamation mark, I put it into user and they show a battery now.I'm not sure what you mean by "Lights up the batteries finally, but does nothing else"
I assume you mean the batteries are powered on, but the inverter isn't doing anything?
If so, are you sure you are using the correct turn-on sequence to make use of the pre-charge resistors in the battery?
ie,
- turn off breakers that are built into the batteries. All 12.
- turn on any circuit breakers that are in line between your batteries and inverter (the idea is, as soon as you turn the breaker on for 1 battery, the inverter should get power, using the pre-charge resistor circuit.
- when inverter lights up, turn the rest of your batteries on.
Has the inverter *ever* powered up? If not, it may be a faulty unit.
It is faulty, I am going through RMA now.