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Hybrid Inverter | Installer Manual
5.23. Fault Codes
To check the fault codes click on the FAULT CODES icon on the settings menu.
If any of the fault messages listed in the following table appear on your inverter and the fault
has not been removed after re-starting, please contact your local vendor or service centre. The
following information is required:
1. Inverter serial number.
2. Distributor or service centre of the inverter.
3. On-grid Power Generation Date.
4. The problem description (including the fault code and indicator status displayed on the LCD)
with as much detail as possible.
5. Owner’s contact information.
Error Code Description
Solutions
F13
Working Mode
Change
Inverter work mode changed
1.Reset the inverter.
2.Seek help from Sunsynk.
F18
AC over current
fault or hardware
AC Slide over current fault.
1.Check if the backup load power is within the range of the
inverter.
2.Restart, and check if it is normal.
F20
DC over current
fault of the hard-
ware
DC Over current fault
1.Check if PV module and battery connections.
2.Reset the system.
