Other Common Faults and Solutions
FAULT ANALYSIS ACTION
Inverter communication failure
Check communication port connection
and battery ID setting.
Select proper “host” battery DIP
switch address, and power cycle the
battery.
No DC output
Open breaker, or battery voltage is too
low.
Check battery breaker and/or
charge the battery.
Power supply unstable Battery capacity is not at full power.
Check for proper battery cable
connection.
Battery cannot be charged fully
DC output voltage is below the
minimum charge voltage.
Check the charging settings on the
inverter to ensure they match
battery requirements.
ALM LED always on Short circuit
Turn off the battery breaker and
check all cabling.
The battery output voltage is
unstable.
Battery management system does not
operate normally.
Press the reset button to reset the
battery, then reboot the system.
ALM LED flashes 20 times with
SOC1 LED on.
Unbalanced voltage within a cell
Deep discharge the battery bank
(<20% SOC), then charge battery
bank fully.
ALM LED flashes 20 times with
SOC2 LED on.
Unbalanced temperature Contact the distributor.
ALM LED flashes 20 times with
SOC 3/4 LED on.
BMS damaged Contact the distributor.
Different SOC value of batteries
in parallel operation.
No issue
Deep discharge the battery bank
(<20% SOC), then charge battery
bank fully.
Low voltage protection with no
LED on
BMS is in low voltage protection, and
is in sleep mode
Follow the below steps to reboot the
module.
1.
Charge the battery immediately
and it will reboot itself.
2.
Switch off and switch on, when
on, charge it immediately.
If you follow step 1 or step 2 without
charging immediately, the BMS will
go into protect mode and go to sleep
mode shortly after.
Deeply discharged with “RUN”
LED on
The battery voltage is too low to start
BMS.
Contact the distributor.
If any of the warnings or faults from both tables persist, please contact the distributor for
additional troubleshooting steps.
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