Huawei LUNA2000-2.0MWH-1H0 User Manual page 148

LUNA2000-2.0MWH-1H0, 2H0 Smart String ESS
User Manual
Alar Alarm
m ID Name
3850 Combusti
ble Gas
Detection
Malfuncti
on
3851 Exhaust
Fan
Faulty
3827 Ambient
Temperat
ure High
3852 Ambient
Temperat
ure Low
3828 Condensa
tion Risk
Issue 02 (2021-11-15)
Severit Possible Causes
y
Cause ID=2
There are too many faulty
TCUs.
Major Cause ID=1
Too many combustible
gas sensor failures.
Major Cause ID=1-12
Exhaust fan is faulty.
Major Cause ID=1
The ambient temperature
in the battery cabin is too
high.
Cause ID=2
The ambient temperature
of the control unit cabin
is too high, which triggers
system derating or
shutdown.
Major Cause ID=1
The ambient temperature
in the battery cabin is too
low.
Cause ID=2
The ambient temperature
in the control unit cabin
is too low.
Minor Cause ID=1
Condensation risk exists
in the battery
compartment.
Copyright © Huawei Technologies Co., Ltd.
Troubleshooting Suggestions
1. Repair the TCU based on the fault
alarm.
2. On the maintenance screen, check
that the TCU is correctly connected.
1. Repair the device based on the fault
alarm of the combustible gas
sensor.
2. On the Maintenance page, check
that the combustible gas sensor is
properly connected.
1. Check whether the cable connection
of the exhaust fan is correct.
2. Check whether the TCU connected
to the exhaust fan works properly.
3. Check whether the exhaust fan is
faulty. If yes, replace it.
1. Check whether the air conditioners
in the battery cabin are faulty.
2. Check whether the doors of the
battery cabin are completely closed.
1. Check whether the air conditioners
in the control unit cabin are faulty.
2. Check whether the doors of the
control unit cabin are completely
closed.
1. Check whether the air conditioners
in the battery cabin are faulty.
2. Check whether the doors of the
battery cabin are completely closed.
1. Check whether the air conditioners
in the control unit cabin are faulty.
2. Check whether the doors of the
control unit cabin are completely
closed.
1. Check whether the air conditioners
in the battery cabin are faulty.
2. Check whether the doors of the
battery cabin are completely closed.
10 Alarm Reference
140