202207V1.1
info@estarpower.com
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5. Troubleshooting
5.1Status LED Indicator
The LED flashes five times at start up. All green flashes (1s gap) indicate normal start up.
1.Start-up Process
Flashing green five times (0.3s gap): Start-up success
Flashing Red five times (0.3s gap): Start-up failure
2.Run Process
Flashing Fast Green (1s gap): Producing power.
Flashing Slow Green (2s gap): Producing power but one input is abnormal.
Flashing Red (0.5s gap): There is a fault that are not invalid AC grid or hardware failure, refer to HERF
Monitoring Platform for more details.
Flashing Red (1s gap): Not producing power due to invalid AC grid.
Solid Red: Hardware failure, refer to HERF Monitoring Platform for more details.
3.Other Status
Flashing Red and Green alternately: Firmware is corrupted.
*Note: All the faults are reported to the DCU, refer to the local APP of the DCU or HERF Monitoring
Platform for more information.
5.2On-site Inspection (For qualified installer only)
To troubleshoot an inoperable microinverter, follow the steps in the order shown.
1.Verify the utility voltage and frequency are within ranges shown in the in appendix Technical Data of this
microinverter.
2.Check the connection to the utility grid. Verify utility power is present at the inverter in question by removing
AC, then DC power. Never disconnect the DC wires while the microinverter is producing power. Re-connect the
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