Huawei LUNA2000-200KWH-2H1 - Page 35

Alarm
ID
Alarm
Name
Alarm
Severit
y
Possible Cause Suggestion
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
Conditio
ner
Temper
ature
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
Conditio
ner
Temper
ature
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
Conditio
ner
Internal
Fan
Fault
Major Cause ID = 1–13
1. [HVAC-No] The
cable of the fan 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, securely connect
the cable. Check whether the fan is
damaged or burnt. If yes, contact your
technical support.
3808 Air
Conditio
ner
External
Fan
Fault
Major Cause ID = 1–13
1. [HVAC-No] The
cable of the fan 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, securely connect
the cable. Check whether the fan is
damaged or burnt. If yes, contact your
technical support.
LUNA2000-200KWH-2H1 Smart String ESS
Maintenance Manual 3 Alarm Reference
Issue 02 (2023-02-28) Copyright © Huawei Digital Power Technologies Co., Ltd. 29