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◆ Vac Failure
Error Code: 09/10/12/15
Cause: Grid voltage is out of limitation
Measurement:
A. Measure the voltage when the inverter display ‘Vac Failure’, if not within regulation,
please contact with the electricity company;
B. Measure the inner AC side of the inverter, the voltage of N to PE should be less than 1V. If
not, please check the AC wiring (For inverter display ‘Vac Failure’ when counting down at
0s);
C. Check if the ‘Vac’ displayed in the screen is the same as the value measure from the switch
board. If not, please contact with GoodWe local service center.
2.4 Trouble Shooting
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