These faults apply to the following sungrow products:
SG30CX / SG33CX / SG40CX / SG50CX / SG110CX
SG2.0RS-S / SG2.5RS-S / SG3.0RS-S / SG3.0RS /SG3.6RS / SG4.0RS / SG5.0RS / SG6.0RS
SH3.0RS/SH3.6RS/SH4.0RS/SH5.0RS/SH6.0RS
SG3.0RT / SG4.0RT / SG5.0RT / SG6.0RT / SG7.0RT /SG8.0RT / SG10RT / SG12RT / SG15RT / SG17RT /SG20RT
SH5.0RT/SH6.0RT/SH8.0RT/SH10RT
SH5T/6T/8T/10T/12T/15T/20T/25T
S450S/S800S/S1600S
In the event of Fault Codes 002, 003, 014 or 015 being informed through the App, the following corrective measures shall be taken:
Code 002 (Grid Overvoltage):
Fault name | Grid overvoltage (fault code: 002) |
Fault type | Failure shutdown |
Fault condition | The grid voltage is higher than the set protection value. |
Steps and method of troubleshooting | Generally, the inverter will be reconnected to the grid after the grid returns to normal. If the fault occurs repeatedly: 1. Check whether the set inverter overvoltage protection value and the set HVRT protection value are correct. 2. Measure the AC voltage of AC output and compare the measured value with the displayed voltage and the set protection value.
If the difference between the measured voltage and the displayed voltage is large, it can be inferred that the sampling is abnormal. Contact SUNGROW Service in order to replace the inverter. |
Code 003 (Transient grid overvoltage):
Fault name | Transient grid overvoltage (fault code: 003) |
Fault type | Failure shutdown |
Fault condition | The instantaneous peak voltage of the grid is too high. It is greater than 440V, and it is higher than the instantaneous overvoltage protection value for more than 5s. |
Steps and method of troubleshooting | Generally, the inverter will be reconnected to the grid after the grid returns to normal. If the fault occurs repeatedly: 1. Measure the AC voltage of AC output and compare the measured value with the displayed voltage and the set protection value. If the difference between the measured voltage and the displayed voltage is large, it can be inferred that the sampling is abnormal. It is recommended to replace the inverter. If the sampling is normal, generally it can be inferred that the grid is faulty. |
Code 014 (10-minute grid overvoltage):
Fault name | 10-minute overvoltage of the grid (fault code: 014) |
Fault type | Failure shutdown |
Fault condition | The 10-minutes overvoltage protection function is enabled, and the grid voltage is higher than the set value of overvoltage protection |
Steps and method of troubleshooting | Generally, the inverter will be reconnected to the grid after the grid returns to normal. If the fault occurs repeatedly: 1. Check whether the set value of 10-minute overvoltage protection is correct. 2. If the local standard does not require the 10-minute overvoltage protection function to be enabled, disable the function. |
Code 015 (Grid High Voltage):
Fault name | Grid High Voltage (fault code: 015) |
Fault type | Failure shutdown |
Fault condition | Grid voltage is higher than the set voltage protection value |
Steps and method of troubleshooting | Generally, the inverter will be reconnected to the grid after the grid returns to normal. If the fault occurs repeatedly: 1. Measure the actual grid voltage, and please contact the local electric Power company for solutions if the grid voltage is higher than the set value. 2. Check whether the protection parameters are appropriately set via the APP or the LED. 3. Check whether the cross-sectional area of the AC cable meets the requirement.
If the fault is not caused by the foregoing reasons and still exists, please contact Sungrow Service. |
For further information, please download the user manual here.
This manual is intended for professional technicians who are responsible for installation, operation, maintenance and troubleshooting of inverters, and users who need to check inverter parameters. The inverter must only be installed by professional technicians.
The professional technician is required to meet the following requirements:
Know electronic, electrical wiring and mechanical expertise, and be familiar with electrical and mechanical schematics.
Have received professional training related to the installation, commissioning and troubleshooting of electrical equipment.
Be able to quickly respond to hazards or emergencies that occur during installation, commissioning and troubleshooting.
Be familiar with local standards and relevant safety regulations of electrical systems.
Read this manual thoroughly and understand the safety instructions related to operations.