Installation and Operating Instructions
65
Resumable
Fault
38
•Check the PV generator’s insulation to ground, make sure that the
insulation resistance to earth is greater than 1MOhm; Otherwise,
make a visual inspection of all PV cables and modules.
•Make sure the ground connection of the inverter is reliable.
If this fault occurs often, contact the service.
40
•Check whether the airflow to the heat sink is obstructed.
•Check whether the ambient temperature around the inverter is too
high.
41, 42
43, 44
•Disconnect the inverter from the grid and the PV generator,
reconnect them after 3 minutes.
If this fault is still being shown, contact the service.
46
•Check the open-circuit voltages of the strings, make sure it is lower
than the Max. DC input voltage of the inverter;
If the input voltage lies within the permitted range, and the fault
still occurs, maybe the internal circuit has broken, contact the
service.
Permanent
Fault
1,2,3,4,8,
9,10,
11,39
Disconnect the inverter from the grid and the PV generator,
reconnect them after 3 minutes. If this fault is still being shown,
contact the service.
