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9 Troubleshooting and Maintenance
Fault Code
7, 11, 16, 19–
25, 30–34, 36,
38, 40–42, 44–
50, 52–58, 60–
69, 85, 87, 92,
93, 100–105,
107–114, 116–
124, 200–211,
248–255, 300–
322, 324–328,
401–412, 600–
603, 605, 608,
612, 616, 620,
622–624, 800,
802, 804, 807,
1096–1122
59, 70–74, 76–
83, 89, 216–
218, 220–233,
432–434, 500–
513, 515–518,
635–638, 900,
901, 910, 911,
996
264-283
102
Fault Name
Corrective Measures
1. Wait for the inverter to return to normal.
2. Disconnect the AC and DC switches, and dis-
connect the battery side switches if there are bat-
System Fault
teries. Close the AC and DC switches in turn 15
minutes later and restart the system.
3. Contact Sungrow Customer Service if the pre-
ceding causes are ruled out and the fault persists.
1. The inverter can continue running.
2. Check whether the related wiring and terminal
are abnormal, check whether there are any for-
eign materials or other environmental abnormal-
System Alarm
ities, and take corresponding corrective
measures when necessary.
3. If the fault persists, please contact Sungrow
Power Customer Service.
1. Check whether the corresponding string is of
reverse polarity. If so, disconnect the DC switch
and adjust the polarity when the string current
drops below 0.5 A.
MPPT Reverse
2. Contact Sungrow Customer Service if the pre-
Connection
ceding causes are ruled out and the fault persists.
*The code 264 to code 279 are corresponding to
string 1 to string 20 respectively.
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