EMS
Chrg-Low-Temp
Cell charge under
temperature fault
Wire-Harness-Err
Wire beam fault
Restart the system to see if the
fault is
eliminated.
If the problem is not resolved,
please contact AlphaESS customer
service.
Relay Err
Relay fault
Restart the system to see if the
fault is
eliminated.
If the problem is not resolved,
please contact AlphaESS
customer service.
Temp-Sen-Err
Temperature
sensor fault
Restart the system to see if the
fault is eliminated.
If the problem is not resolved,
please contact AlphaESS
customer service.
PCS Lost
PCS Lost
Check if the communication cable
connector between PCS
(Storion-T50/T100-INV: port 9,
10) and TOP BMU (EMS) is
connected and restart the system.
If the problem is not resolved,
please contact AlphaESS customer
service.
Meter1 Lost
Meter1 Lost
Check the communication line
between the GRID meter and the
TOP BMU (Meter COM port), and
restart the system.
If the problem is not resolved,
please contact AlphaESS customer
service.
Fault Name
Troubleshooting
Fault
Category
BMS
LCD Fault
Display
Fault Name
Troubleshooting
Fault
Category
EMS
LCD Fault
Display
BMS Lost
BMS Lost
Check if the battery and TOP
BMU (BMU) communication
cable connector are not plugged
in and restart the system.
If the problem is not resolved,
please contact AlphaESS
customer service.
PV Meter Lost
PV Meter Lost
Check if the communication
cable between the PV side
meter and the GRID meter is
connected.
If the problem is not resolved,
please contact AlphaESS
customer service.
SD Lost
SD Lost
Restart the system to check if the
fault is eliminated.
If the problem is not resolved,
please contact AlphaESS
customer service.
RTC error
RTC error
Restart the system to check if
the fault is eliminated.
If the problem is not resolved,
please contact AlphaESS
customer service.
Fire_Fault
Fire_Fault
Check the system for fire failure.
If there is a fire, please
extinguish the fire in safe
condition.
If there is no fire, please check if
the DI1 (TOP BMU) interface
terminal is connected tightly and
restart the system.
If the problem is not resolved,
please contact AlphaESS
customer service.
Fire Controller Err
Fire Controller Err
Check whether the AC and DC
switches on the fire controller
are all turned on, and check
whether the fire
communication is connected to
DI2 (TOP BMU).
If the problem is not resolved,
please contact AlphaESS
customer service.
Confirm that the ambient
temperature is higher than 0°. If it
is lower than below, please turn on
the heating equipment such as
heater. If the ambient temperature
is higher than 0°, restart the
system.
If the problem is not resolved,
please contact AlphaESS customer
service.
TROUBLESHOOTING
TROUBLESHOOTING
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