99
Fault Code Fault Name Corrective Measures
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
System Fault
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-
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.
59, 70–74, 76–
83, 89, 216–
218, 220–233,
432–434, 500–
513, 515–518,
635–638, 900,
901, 910, 911,
996
System Alarm
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-
ities, and take corresponding corrective
measures when necessary.
3. If the fault persists, please contact Sungrow
Power Customer Service.
264-283
MPPT Reverse
Connection
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.
2. Contact Sungrow Customer Service if the pre-
ceding causes are ruled out and the fault persists.
*The code 264 to code 279 are corresponding to
string 1 to string 20 respectively.
User Manual 9 Troubleshooting and Maintenance
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