Quattro 24/5000 not switching to grid?

I’m using the Quattro 24/5000 to power my house using 4000 watts of solar at 24 volts. I cannot program the inverter to switch to grid power when batteries get to 22.5 volts. The inverter just turns off leaving me in the dark. If I switch the batteries off to inverter the inverter then switches to charge and house is powered by grid.

@Joseph768 Maybe worth explaining the setup and current settings. You can program the virtual switch, Ignore AC input, to switch based on power and voltage.

Thank you for the reply. I haven’t seen these settings on my Quattro? But I will hook my laptop backup and see if I can find these them. Thanks.