What to do if Deye Inverter shows Grid_phase_warn?
If your Deye Inverter displays a Grid_phase_warn, check the phase sequence connection of the power grid. Try changing the grid type. If there is still no solution check the wiring at the grid end.
What to do if Deye SUN-20K-SG01HP3-EU-AM2 Inverter shows FAN_OUT?_Warn?
If your Deye Inverter displays a FAN_OUT?_Warn, check whether the FANs are connected correctly and operating normally.
What to do if Deye SUN-20K-SG01HP3-EU-AM2 shows FAN_IN_Warn?
If your Deye Inverter displays a FAN_IN_Warn, check the operating status of the fan. If the fan is running abnormally, open the cover of the inverter to check the fan's connection.
What to do if my Deye Inverter displays AC_NoUtility_Fault?
If your Deye Inverter displays an AC_NoUtility_Fault, check the grid voltage and frequency to ensure the connection of the power grid is normal.
What to do if Deye SUN-20K-SG01HP3-EU-AM2 Inverter shows Meter_offline_warn?
If your Deye Inverter displays a Meter_offline_warn, it indicates a meter communication failure. Check whether the meter has successful communication and whether the wiring is normal.
What to do if Deye SUN-20K-SG01HP3-EU-AM2 shows CT_WRONG_direction_warn?
If your Deye Inverter displays a CT_WRONG_direction_warn, check whether the arrow on the CT's case points to the inverter and verify if the installation location of CTs is correct.
What to do if Deye Inverter displays Parallel_comm_warn?
If your Deye Inverter displays a Parallel_comm_warn due to unstable parallel communication, check the connection of the parallel communication line. Ensure that the parallel communication line is not wound with other cables, and check whether the parallel dip switch is on.
What does it mean if my Deye SUN-20K-SG01HP3-EU-AM2 Inverter shows DC_VoltLow_Fault?
If your Deye Inverter displays a DC_VoltLow_Fault, it means the BUS voltage is too low. Verify if the battery voltage is too low. If it is, use PV or the grid to charge the battery.
What does it mean if my Deye SUN-20K-SG01HP3-EU-AM2 Inverter shows DC_VoltHigh_Fault?
If your Deye Inverter displays a DC_VoltHigh_Fault, it means the BUS voltage is too high. Check if the battery voltage is too high and verify that the PV input voltage is within the allowed range.
How to fix GFCI_Failure on Deye SUN-20K-SG01HP3-EU-AM2 Inverter?
If your Deye Inverter displays a GFCI_Failure due to a leakage current fault, check the PV side cable ground connection. You can also try restarting the system a few times.
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