Huawei LUNA2000-2.0MWH Series - Page 188

Alarm
ID
Alarm
Name
Severity Possible Cause Suggestion
3803 Fire
Suppressio
n System
Fault
Major Cause ID = 1
Sensor or controller fault
1. Troubleshoot faults based on the
instructions in the re suppression
system user manual.
2. If the fault persists, contact your
technical support.
3804 AC SPD
Fault
Major Cause ID = 1
The AC SPD is faulty.
1. Check whether the AC SPD signal
cable is loose.
2. Check whether the color of the
AC SPD indicator changes.
3. Replace the AC SPD.
3805 Air
Condition
er
Temperatu
re High
Major Cause ID = 1–13
The return air
temperature of [HVAC-
No] exceeds the high
temperature alarm
threshold.
1. If multiple air conditioners report
the alarm, shut down the system
and contact your technical support.
2. If only one air conditioner reports
the alarm, check other alarms
reported by the air conditioner and
rectify the faults based on the
troubleshooting suggestions. If no
other alarm is generated, shut
down the air conditioner and
contact your technical support.
3806 Air
Condition
er
Temperatu
re Low
Major Cause ID = 1–13
The return air
temperature of [HVAC-
No] is below the low
temperature alarm
threshold.
1. If multiple air conditioners report
the alarm, shut down the system
and contact your technical support.
2. If only one air conditioner reports
the alarm, check other alarms
reported by the air conditioner and
rectify the faults based on the
troubleshooting suggestions. If no
other alarm is generated, shut
down the air conditioner and
contact your technical support.
3807 Air
Condition
er Internal
Fan Fault
Major Cause ID = 1–13
1. The fan cable of
[HVAC-No] is loose.
2. The fan is damaged.
1. Shut down the system at a
proper time.
2. Power o the air conditioner,
open the enclosure, and check
whether the fan cable is loose. If
yes, connect the cable securely.
Check whether the fan is damaged
or burnt. If yes, contact your
technical support.
3808 Air
Condition
er
External
Fan Fault
Major
LUNA2000-2.0MWH Series Smart String ESS
User Manual 10 Alarm Reference
Issue 08 (2022-11-15) Copyright © Huawei Technologies Co., Ltd. 178