Huawei LUNA2000-2.0MWH-1H0 - Page 165

Alar
m ID
Alarm
Name
Severit
y
Possible Causes Troubleshooting Suggestions
3038 Optimizati
on unit
terminal
overtempe
rature
Major Cause ID = 1
The terminal is not
securely connected.
1. Conrm the [ESR-CabinetNo ESM-
SlotNo] position and the
corresponding input and output
circuit breakers.
2. Send a shutdown command, turn o
the battery switch, bus switch, and
AC power supply switch, and wait for
5 minutes.
3. Check the cable connections to
battery modules and optimization
units by referring to the quick
installation guide.
4. Check that the power cables are
securely connected. Turn on the AC
power supply switch, battery switch,
and bus switch in sequence to deliver
a startup command.
5. If the alarm persists, contact your
dealer or technical support.
3039 The
optimizati
on unit
version
does not
match.
Major Reason ID = 1–2
The upgrade does not
complete normally.
1. The optimization unit version in
[ESR-CabinetNo ESM-SlotNo] does
not match. Please perform the
upgrade again.
2. If the update fails multiple times,
contact your dealer or technical
support.
LUNA2000-2.0MWH-1H0, 2H0 Smart String ESS
User Manual 10 Alarm Reference
Issue 02 (2021-11-15) Copyright © Huawei Technologies Co., Ltd. 157