All-in-one solar charge inverter V1.0 58
6.3 Handling measures for part of faults
Fault
code
Faults
Remedy
Display
No display on the screen
Check if the battery the PV air switch 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 air switch and Mains air switch.
【01】
【04】
Battery undervoltage
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 overvoltage
Use a multimeter to check if the PV input voltage exceeds
the maximum allowable input voltage rated.
【03】
Battery disconnected alarm
Check if the battery is not connected or if the battery
circuit breaker is not closed.
【40】
【43】
Parallel connection fault
Check whether the parallel line is not connected well, such
as loose or wrong connection.
【35】
Parallel ID setting error
Check whether the setting of parallel ID number is
repeated.
【37】
Parallel current sharing fault
Check whether the parallel current sharing line is not
connected well, such as loose or wrong connection.
【39】
Inconsistent AC input source
in parallel mode
Check whether the parallel AC inputs are from the same
input interface.
【42】
Inconsistent system firmware
version in parallel mode
Check whether the software version of each inverter is
consistent.