No AC output. I am wiring the 6kw growatt offgrid inverter. My batteries are full charge and the PV is not yet connected but will be through a combiner box. Would a UPS setting prevent AC output, since I am not connecting AC in? ?Are Hot1 and Hot2 positional? I have Hot1, Hot2, Neutral and Ground connected from the 60amp breaker with an interlock kit. Thks
Growatt 6kw offgrid
- Thread starter NCer
- Start date
DIYrich
Solar Wizard
What model Growatt? If you have battery or PV, it should turn on. How many volts from the battery?
This is what I have.
6kW 48V 240VAC Split Phase 80A 250VDC Off-Grid Inverter by Growatt × 1
Make sure the switches on the bottom of the Growatt are turned on.
You don't need AC input to run the Growatt, just the battery is needed for testing.
If your battery is providing voltage and the Growatt is set to use battery power, you should be seeing AC at the output.
Setting 01 should be set to SBU for checking operation with the battery.
Another common issue is with users messing up the wiring connections, loosening both screws on the wiring connector for each wire instead of just the outside one. This leads to losing the connection to the internal wires.
You don't need AC input to run the Growatt, just the battery is needed for testing.
If your battery is providing voltage and the Growatt is set to use battery power, you should be seeing AC at the output.
Setting 01 should be set to SBU for checking operation with the battery.
Another common issue is with users messing up the wiring connections, loosening both screws on the wiring connector for each wire instead of just the outside one. This leads to losing the connection to the internal wires.
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Brett V
Mad Scientist
Make sure your output priority is NOT set to Utility First.
The main switch is flipped down (on) not up (power saver) right?
Also, check settings 12 and 13 to make sure they are correct. Set 13 to 100% to ensure it runs on battery when fully charged, especially if you have no other inputs.
Also, check settings 12 and 13 to make sure they are correct. Set 13 to 100% to ensure it runs on battery when fully charged, especially if you have no other inputs.
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Thank you all, I found a fault code indicating BMS not communicating. What would cause that? I switch that 05 to US2 and it worked. I really want the BMS communicating. What should the dip switches be? I am using the BMS port and the main dip switch is DDDU the second is UDDU. Thanks again.
I set my Growatt to run off voltage instead of BMS communications after running into issues with battery sag during high inrush loads. Kept getting errors. That said, my setup is for emergency backup only and I don't have solar panels so it is rarely in use.
Thank you
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