EG4 EG4-LL-S User Manual

26
Other common faults and solutions
Fault
Analysis
Action
Inverter communication failure
Check
communication port
connection,
and battery ID setting.
Input 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 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
Disconnect the power cable
and check all cables.
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
Contact the distributor.
Deeply
discharged with “RUN
”
LED on
The battery voltage is too low to start
BMS.
Contact the distributor.
Note: If any of the warnings or faults from both tables persist, please contact the distributor for
additional troubleshooting steps.

EG4 EG4-LL-S Specifications

General

Brand	EG4
Model	EG4-LL-S
Category	Battery Pack
Language	English