Cause-
- Inverter does not detect the grid
Solution-
- Test – DC switch OFF
- Check AC at the inverter test points
- L-L, L-GND•Do NOT tell me 240VAC
- Check LCD reading, may be a bad measurement circuit
- Test – DC Switch ON
- Check grid standard
- Replace inverter
Troubleshooting - No grid is detected, check grid standard for incorrect setting, Power board for equipment failure, Transformers downstream, and power board for failure. Test the AC voltage at grid terminal for voltage readings identifying a grid fault.