SunBeat 8015A - Maintenance and troubleshooting; Daily Maintenance; Battery Troubleshooting

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The error codes of the display are described in the following table.
Error code
Item
Troubleshooting
Error 01
Battery overvoltage
protection
y Press the battery power button on the power
distribution box, and then press the power button
again after battery completely shut down to restart
the battery.
y Set the inverter mode to discharge the battery until at
80%~90% SOC.
80%~90%.
Error 02
Battery under-voltage
protection
y Press the battery power button on the power
distribution box, and then press the power button
again after battery completely shut down to restart
the battery.
y Set the inverter mode to charge the battery.
Error 03
Battery over
temperature protection
y Check whether the ambient temperature is too high.
y Press the battery power button on the power
distribution box, and then press the power button
again after battery completely shut down to restart
the battery.
Error 04
Battery low temperature
protection
y Check whether the ambient temperature is too low.
y Press the battery power button on the power
distribution box, and then press the power button
again after battery completely shut down to restart
the battery.
Error 05
Battery overcurrent
protection (discharge)
y Check whether the load power exceeds the limit
allowed by the specification.
y Press the battery power button on the power
distribution box, and then press the power button
again after battery completely shut down to restart
the battery.
Error 06
Battery overcurrent
protection (charge)
y Press the battery power button on the power distribution
box, and then press the power button again after battery
completely shut down to restart the battery.
y Set the inverter mode to discharge the battery until the
fault is restored.
Error 15
Communication fault
y Check whether the communication line between the
display control board and the battery is connected.
y Check whether the matching resistor has been installed
in battery.