Huawei LUNA2000-2.0MWH Series User Manual page 188

LUNA2000-2.0MWH Series Smart String ESS
User Manual
Alarm Alarm
ID Name
3803 Fire
Suppressio
n System
Fault
3804 AC SPD
Fault
3805 Air
Condition
er
Temperatu
re High
3806 Air
Condition
er
Temperatu
re Low
3807 Air
Condition
er Internal
Fan Fault
3808 Air
Condition
er
External
Fan Fault
Issue 08 (2022-11-15)
Severity Possible Cause
Major Cause ID = 1
Sensor or controller fault
Major Cause ID = 1
The AC SPD is faulty.
Major Cause ID = 1–13
The return air
temperature of [HVAC-
No] exceeds the high
temperature alarm
threshold.
Major Cause ID = 1–13
The return air
temperature of [HVAC-
No] is below the low
temperature alarm
threshold.
Major Cause ID = 1–13
1. The fan cable of
[HVAC-No] is loose.
2. The fan is damaged.
Major
Copyright © Huawei Technologies Co., Ltd.
10 Alarm Reference
Suggestion
1. Troubleshoot faults based on the
instructions in the fire suppression
system user manual.
2. If the fault persists, contact your
technical support.
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.
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.
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.
1. Shut down the system at a
proper time.
2. Power off 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.
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