Troubleshooting
5.
5.1 Troubleshooting Checklist
Grid-connected
overheat protection
Grid overvoltage
Grid undervoltage
Grid overfrequency
Grid underfrequency
Grid island detected
Grid-connected
overcurrent
Grid fluctuations
Equipment failure
Grid side
Grid side
Grid side
Grid side
Grid side
Grid side
Grid side
Grid side
Grid side
1. Please check whether the ventilation and heat dissipation
conditions are good.
2. If the fault persists or occurs frequently, please contact the
technical team.
1. Please check whether the line connection on the grid side is
normal.
2. If the fault persists or occurs frequently, please contact the
technical team.
1. Please check whether the line connection on the grid side is
normal.
2. If the fault persists or occurs frequently, please contact the
technical team.
1. Grid fluctuations and loose lines may trigger this fault.
2. If the fault persists or occurs frequently, please contact the
technical team.
If it is triggered frequently, please contact the technical team.
1. Grid fluctuations and loose lines may trigger this fault.
2. If the fault persists or occurs frequently, please contact the
technical team.
1. Grid fluctuations and loose lines may trigger this fault.
2. If the fault persists or occurs frequently, please contact the
technical team.
1. Grid fluctuations and loose lines may trigger this fault.
2. If the fault persists or occurs frequently, please contact the
technical team.
1. Grid fluctuations and loose lines may trigger this fault.
2. If the fault persists or occurs frequently, please contact the
technical team.
Codes Alarm range Alarm status
Suggested treatments
404
406/415
408
409
410
414
422
40A-41B
418/419
16
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