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Alpha ESS Co., Ltd.
Page 36 of 43
Your Smart Energy
7.2.3
Battery Error Description
LED Indictor
Error Code
LED dis-
play
Description
Troubleshooting
Red LEDs flash
once every 1S.
Error 01
Hardware error
Restart the batteries.
In case the problem is not
resolved, call for service.
Error 03
Hardware error
Error 05
Hardware error
Error 06
Circuit Breaker
Open
Close circuit breaker after
shutting down the battery.
Error 08
LMU Disconnect
(slave)
Reconnect the BMS communi-
cation cable.
Error 09
SN missing
Call for service.
Error 10
LMU Disconnect
(master)
Reconnect the BMS
communication cable.
Error 11
Software version
inconsistent
Call for service.
Error 12
Multi master
Restart all batteries within 30s.
Error 13
MOS
overtemperature
Power off the battery and
power on the battery after
30~40 minutes.
Error 14
Insulation fault
Restart battery and In case the
problem is not resolved, call
for service.
Error 15
Total voltage
fault
Restart battery and In case the
problem is not resolved, call for
service.
NOTE:
When the protection code NO. 9 appears, please quickly push the Power button 5
times in 10 seconds to force the BMS startup the MOSFET of discharging. Thus the
open-circuit voltage of the battery will be detected by the inverter and get charged.
