Solar Hybrid Inverter V1.0
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6.3 Partial Troubleshooting Measures
Fault code
Faults
Handling measures
Display
No display on the screen
Check if the battery circuit breaker or the PV circuit
breaker has been closed; if the switch is in the "ON"
state; press any button on the screen to exit the
screen sleep mode.
【06】
Battery overvoltage protection
Measure if the battery voltage exceeds rated, and
turn off the PV array circuit breaker and Mains circuit
breaker.
【01】【04】
Battery under-voltage protection
Charge the battery until it returns to the low voltage
disconnection recovery voltage.
【21】
Fan failure
Check if the fan is not turning or blocked by foreign
object.
【19】【20】
Heat sink over temperature
protection
When the temperature of the device is cooled below
the recovery temperature, normal charge and
discharge control is resumed.
【13】【14】
Bypass overload protection,
inverter overload protection
①
Reduce the use of power equipment;
②
Restart the unit to resume load output.
【17】
Inverter short circuit protection
①
Check the load connection carefully and clear
the short-circuit fault points;
②
Re-power up to resume load output.
【09】
PV over-voltage
Use a multimeter to check if the PV input voltage
exceeds the maximum allowable input voltage rated.
【03】
Battery missed alarm
Check if the battery is not connected or if the battery
circuit breaker is not closed.
【26】
Inverted AC Output Backfills to
Bypass AC Input
Disconnect the AC input, PV input and battery input.
After the screen is off, only connect the battery and
start up. If fault 26 is reported, it indicates that the AC
input relay switch is short-circuited, and you need to
contact the manufacturer to replace it.
