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3 Appendix User Manual
20
Fault
Code
Description Troubleshooting
007 Transient AC overcurrent
1. The inverter will self-recover after several
seconds.
2. If the fault still exists, please contact
Sungrow Service Dept.
008
The grid frequency
exceeds inverter
allowable upper limit.
1. Check the grid frequency.
2. If the grid frequency exceeds the permissible
range of inverter protection parameters, ask
utility grid company for solution.
3. If the grid frequency is within the permissible
range, contact Sungrow Service Dept.
009
The grid frequency is
below the inverter
allowable lower limit.
010 Islanding
1. Check whether AC circuit breaker is
triggered.
2. Check whether AC cables are all firmly
connected.
3. Check whether grid is not in service.
4. If all conditions are OK and this fault still
occurs in the LCD screen, contact Sungrow
Service Dept.
011
The DC component of AC
current exceeds inverter
limit. 1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact
Sungrow Service Dept.
012
A failure current is
detected.
1. Check the PV strings for ground fault.
2. If the fault occurs repeatedly, contact
Sungrow Service Dept.
014
The average grid voltage
exceeds the permissible
range for over 10
minutes.
1. Check whether the inverter selected country
code is the country you are in.
2. Wait a moment for inverter recovery.
3. Check the voltage of the grid. If the grid
voltage exceeds the permissible range of
inverter protection parameters, ask utility grid
company for solution.
4. If the fault occurs repeatedly, contact
Sungrow Service Dept..
015
The grid voltage exceeds
the permissible range
1. Check the model of the AC cables.
2. Wait a moment for inverter recovery.
3. If the grid voltage exceeds the permissible
range, ask utility grid company for solution.
4. If the fault occurs repeatedly, contact
Sungrow Service Dept.
016
The bus voltage or power
is high.
1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact
Sungrow Service Dept.
019
The transient bus voltage
is high.
1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact
Sungrow Service Dept.