9 Troubleshooting and Maintenance
User Manual
54
Fault
Code
Description
Troubleshooting
002
The grid voltage
exceeds inverter
allowable upper limit.
1. Check the voltage of the grid.
2. If the grid voltage exceeds the permissible
range of inverter protection parameters, ask
utility grid company for solution.
3. If the grid voltage is within the permissible
range, contact Sungrow Service Dept..
003
Grid transient voltage
exceeds the permissible
range
1. This is a short-term fault due to grid
condition. Wait a moment for inverter
recovery.
2. If the fault still exists, please contact
Sungrow Service Dept..
004
The grid voltage is
below inverter’s
allowable lower limit.
1. Check the grid voltage.
2. If the grid voltage exceeds the permissible
range of inverter protection parameters, ask
utility grid company for solution.
3. If the grid voltage is within the permissible
range, contact Sungrow Service Dept..
005
The grid voltage is too
low.
1. This is a short-term fault due to grid
condition. Wait a moment for inverter
recovery.
2. If the fault still exists, please contact
Sungrow Service Dept..
006
The AC output current
exceeds inverter
protection limit.
1. The inverter will resume if the output
current falls below the protection value.
2. If the fault still exists, please contact
Sungrow Service Dept..
007
Transient
AC
overcurrent
The inverter will self-recover after several
seconds.
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..
