Sunsynk Fault Codes 5KW – 16KW

Description

GFDI Relay Failure

Solution

1. When inverter is in Split phase(120/240Vac) or three-phase system (120/208Vac) system, the backup load port N line needs to connect ground.
2. If the fault still exists, please contact us for help.

Description

Working mode changed

Solution

1. When the grid type and frequency changed it will report F13.
2. When the battery mode was changed to “No battery” mode, it will report F13.
3. For some old FW version, it will report F13 when the system work mode changed.
4.  Generally, it will disappear automatically when shows F13.
5. If still same, and turn off the DC switch and AC switch and wait for one minute and then turn on the DC/AC switch.
6. Seek help from us, if can not go back to normal state.

Description

Solution

1. Please check whether the backup load power and common load power are within the range.
2. Restart and check whether it is in normal.
3. Seek help from us, if can not go back to normal state.

Description

Solution

1. Check PV module connect and battery connect.
2. When in the off-grid mode, the inverter startup with big power load, it may report F20. Please reduce the load power connected.
3. Turn off the DC switch and AC switch and then wait one minute,then turn on the DC/AC switch again.
4. Seek help from us, if can not go back to normal state.

Description

Solution

1. Please contact your installer for help.

Description

Solution

Leakage current fault

1. Check PV side cable ground connection.
2. Restart the system 2~3 times.
3. If the fault still exists, please contact us for help.

Description

Solution

1. Check the connection of PV panels and inverter is firmly and correctly.
2. Check whether the PE cable of inverter is connected to ground.
3. Seek help from us, if can not go back to normal state

Description

Solution

1. Please wait for a while and check whether it is normal.
2. When the hybrid in split phase mode, and the load of L1 and load of L2 is big different, it will report the F26.
3. Restart the system 2~3 times.
4. Seek help from us, if can not go back to normal state.

Description

Solution

1. When in parallel mode, check the parallel communication cable connection and hybrid inverter communication address setting.
2. During the parallel system startup period, inverters will report F29. when all inverters are in ON status, it will disappear automatically.
3. If the fault still exists, please contact us for help.

Description

Solution

1. Check the backup load connected, make sure it is in allowed power range.
2. If the fault still exists, please contact us for help.

Description

Solution

No Utility

1. Please confirm grid is lost or not.
2. Check the grid connection is good or not.
3. Check the switch between inverter and grid is on or not.
4. Seek help from us, if can not go back to normal state

Description

Solution

1. Check the hybrid inverter working status. If there’s 1 pcs hybrid inverter is in OFF status, the other hybrid inverters may report F41 fault in parallel system.
2. If the fault still exists, please contact us for help.

Description

Solution

Grid voltage fault

1. Check the AC voltage is in the range of standard voltage in specification.
2. Check whether grid AC cables are firmly and correctly connected.
3. Seek help from us, if can not go back to normal state.

Description

Solution

1. Check the frequency is in the range of specification or not.
2. Check whether AC cables are firmly and correctly connected.
3. Seek help from us, if can not go back to normal state.

Description

Solution

1. Check the frequency is in the range of specification or not.
2. Check whether AC cables are firmly and correctly connected.
3. Seek help from us, if can not go back to normal state.

Description

Solution

1. Battery voltage low check whether battery voltage is too low.
2. If the battery voltage is too low, use PV or grid to charge the battery.
3. Seek help from us, if can not go back to normal state.

Description

Solution

1. it tells the communication between hybrid inverter and battery BMS disconnected when”BMS_Err-Stop” is active.
2. if don’t want to see this happen, you can disable “BMS_Err-Stop” item on the LCD.
3. If the fault still exists, please contact us for help.

Description

Solution

1. ARC fault detection is only for US market.
2. Check PV module cable connection and clear the fault.
3. Seek help from us, if can not go back to normal state.

Description

Solution

1. Check whether the work environment temperature is too high.
2. Turn off the inverter for 10mins and restart.
3. Seek help from us, if can not go back to normal state.