9 Troubleshooting And Maintenance; Troubleshooting; Led Indicator Troubleshooting - Sungrow SG2KTL-S User Manual

9 Troubleshooting and
Maintenance

9.1 Troubleshooting

9.1.1 LED Indicator Troubleshooting

See "Tab. 2-2Description of LED Indicator" for the definition of LED's status.
Type of fault
LED indicator
cannot be lit.
Green indicator
goes out.
Should you have any questions in operating the inverter, please contact
us:
Telesmartphone: +86 551 6532 7817.
Email: service@sungrow.cn
We need the following information to provide you the best assistance:
Type of the inverter
Serial number of the inverter
Fault name (Each fault has a corresponding fault code, for example, 01 represents
sampling fault.)
Brief description of the fault phenomenon
54
Troubleshooting
1. Disconnect the AC circuit breaker.
2. Rotate the optional DC switch to the "OFF" position.
3. Check the polarity of DC input.
1. Disconnect the AC circuit breaker.
2. Rotate the optional DC switch to the "OFF" position.
3. Check the correctness of the inverter electrical connection.
Refer to 5 Electrical Connection.
4. Check whether the voltage of DC input exceeds the inverter
start-up voltage.
5. If all above conditions are OK, please contact Sungrow.