Huawei LUNA2000-200KWH-2H1 - Page 46

Alarm
ID
Alarm
Name
Alarm
Severit
y
Possible Cause Suggestion
3847 Fire
Suppres
sion
Module
Pressure
Insuci
ent
Major Cause ID = 1
The gas pressure of the
re suppression
module is insucient
for more than three
days.
Check the re suppression module and
the pressure gauge, and replace the re
suppression module.
3048 T/H
Control
Mode:
Manual
Minor Cause ID = 1
The temperature and
humidity control mode
is set to manual.
After the commissioning is complete, set
the temperature and humidity control
mode to automatic.
3849 Air
Exhaust
Malfunc
tion
Major Cause ID = 1
There are too many
faulty exhaust fans.
Cause ID = 2
There are too many
faulty TCUs.
Cause ID = 1
Repair the exhaust fan based on the fault
alarm.
Cause ID = 2
1. Repair the TCU based on the fault
alarm.
2. On the maintenance screen, check
that the TCU is correctly connected.
3850 Combus
tible
Gas
Detectio
n
Malfunc
tion
Major Cause ID = 1
There are too many
faulty combustible gas
sensors.
1. Repair the combustible gas sensor
based on the fault alarm.
2. On the maintenance screen, check
that the combustible gas sensor is
correctly connected.
3851 Exhaust
Fan
Fault
Minor Cause ID = 1
Exhaust fan-1 is faulty.
Cause ID = 2
Exhaust fan-2 is faulty.
1. Check whether the cable is loose. If
yes, connect the cable securely. Check
whether the fan is damaged or burnt.
If yes, replace the fan.
2. Check whether the TCU connected to
the exhaust fan works properly.
3. If the fault persists, contact your
technical support.
3852 Ambient
Temper
ature
Low
Major Cause ID = 1
The ambient
temperature in the
battery cabin is too
low.
1. Check whether the air conditioners in
the battery cabin are faulty.
2. Check whether the doors of the
battery cabin are completely closed.
LUNA2000-200KWH-2H1 Smart String ESS
Maintenance Manual 3 Alarm Reference
Issue 02 (2023-02-28) Copyright © Huawei Digital Power Technologies Co., Ltd. 40