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
In the event of Fault Code 88 being informed through the App, the following corrective measures shall be taken:
Electric Arc Fault (Code 088)
Fault Name | Arc fault (fault code: 088) |
Fault Type | Fault |
Fault Condition | The arc detection module detects an arc on the DC side of the inverter. |
Troubleshooting steps and methods | 1. Check whether the external and internal DC cables of the inverter are reliably connected. 2. Keep only one DC switch disconnected and the other switches closed to locate the abnormal string. 3. Check whether the connection between the detection board of the abnormal string and the control board is reliable. 4. Check whether DC terminals are carbonized. 5. If no abnormality is found, replace the control board. 6. If the fault is not cleared after the control board is replaced, replace the DC input terminals and string detection board. |
keywords: 088, 88, code 88
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.