Presumable
Fault
make sure it is below the maximum DC input voltage
of the inverter.
If the input voltage lies within the permitted range
and the fault still occurs, please call service.
6
•Check the PV array’s insulation to ground and make
sure that the insulation resistance to ground is greater
than 1 MOhm. Otherwise, make a visual inspection of
all PV cables and modules.
• Make sure the grounding connection of the inverter
is reliable.
If this fault occurs often, contact the service.
8
•Check whether the airflow to the heat sink is
obstructed.
•Check whether the ambient temperature around the
inverter is too high.
Permanent
Fault
1, 2,3,
4,13 14
• Disconnect the inverter from the utility grid and the
PV array and reconnect it after LED turn off. If this
fault is still being displayed, contact the service.
Contact the service if you meet other problems not in the table.
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