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◆ Button Faul
Error Code: Null
Cause: Button doesn’t work
Measurement:
A. Remove the cover, and reconnect the ribbon between the screen and PCB.
B. If problem remains, please contact with GoodWe local service center.
Conclusion:
As above, we can see that when solar system goes fault, the problem could be of PV
panels, DC wiring, AC wiring, inverter itself etc. Inverter is the only component which has
alarm system. So when the inverter displays a fault, we should check the status of the whole
solar system.
2.4 Trouble Shooting
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