HOME-ESS-HV-5.3K
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37
Table 13 Common Troubleshooting
Accident
Fault description
Solution
Display does not
light up
After the battery
modules, base and BDU
stacking is completed,
turn on the circuit
breaker, the display does
not light up
Check that the connectors between the BDU and the
module are mated in place. If restacking does not
work, please contact Hanchu ESS after-sales service
or your distributor directly.
No DC Output
Charging and discharging
are not possible when
connected to a power
source.
Check whether the circuit breaker at the battery
terminal is closed and switched on. If it is closed and
charging/discharging is still not possible, please
contact Hanchu ESS after-sales service department
or your dealer directly.
External
communication
Errors
The communication
interruption between
BMS and inverter.
Check if the communication cable between BDU and
inverter is correct and well connected.
Internal
communication
Errors
Communication between
battery groups is
interrupted.
Check that the communication cables between the
parallel battery clusters are correct and well
connected.
Over Voltage Alarm
Battery voltage is too
high .
Wait for the battery voltage to return to normal.
Lower Voltage
Alarm
Battery voltage is too low.
Please click on the Forced Charging pattern on the
display, if it does not work please contact Hanchu
ESS after-sales service or your dealer directly.
Charge OCP
Battery charging over
current protection.
Please contact Hanchu ESS after-sales service
department or your dealer directly.
Discharge OCP
Battery discharge over
current protection.
Please contact Hanchu ESS after-sales service
department or your dealer directly.
High Temperature
Protection
Battery temperature is
too high.
Wait for the cell temperature to return to normal.
Low Temperature
Protection
Battery temperature is
too low.
Wait for the cell temperature to return to normal.
Cell Imbalance
The capacity of the
battery is different.
Please contact Hanchu ESS after-sales service
company or your dealer directly.
5
Common Troubleshooting
