Huawei LUNA2000-2.0MWH-1H1 - Page 200

Table 10-2 PSU indicator status and troubleshooting
Indicator Color Status Description Suggestion
Power
indicator
Green Steady on The PSU has
an AC input.
Normal.
O The PSU has
no AC input.
Check
whether the
input is
normal. If
yes, replace
the PSU.
The PSU is
damaged.
Replace the
PSU.
Blinking at
0.5 Hz
Querying is
in progress.
Normal.
Blinking at 4
Hz
The PSU is
loading the
application
program.
The PSU
automaticall
y recovers
after the
loading is
nished, and
no action is
required.
Alarm
indicator
Yellow O The PSU
does not
generate any
protection
alarm.
Normal.
Steady on ● A warning
is
generated
due to
ambient
overtemp
erature.
● A
shutdown
protection
alarm is
generated
due to
ambient
overtemp
erature or
undertem
perature.
Check that
the air vent
is not
blocked and
the ambient
temperature
is within the
normal
range.
LUNA2000-2.0MWH Series Smart String ESS
User Manual 10 Alarm Reference
Issue 08 (2022-11-15) Copyright © Huawei Technologies Co., Ltd. 190