Huawei Smart String ESS LUNA2000-200KWH-2H1 - Page 130

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
6 Alarm Reference
Issue Draft (2022-10-30)
Copyright © Huawei Technologies Co., Ltd.
123
Alarm
ID
Alarm
Name
Alarm
Severit
y
Possible Cause
Suggestion
3816
Air
Conditio
ner
Evaporat
or
Temperat
ure
Sensor
Fault
Minor
Cause ID = 1–13
1. [HVAC-No] The cable
of the evaporator
temperature sensor is
loose.
2. The sensor is
damaged,
open-circuited, or
short-circuited.
1. Shut down the system at a proper time and
take security protection measures.
2. Check whether any cable is loose.
3. Replace the evaporator temperature sensor.
3817
Air
Conditio
ner
Condens
er
Temperat
ure
Sensor
Fault
Minor
Cause ID = 1–13
1. [HVAC-No] The cable
is not connected
securely or correctly.
2. The sensor is
damaged,
open-circuited, or
short-circuited.
1. Shut down the system at a proper time and
take security protection measures.
2. Check whether any cable is loose.
3. Replace the condenser temperature sensor.
3818
Air
Conditio
ner
Ambient
Temperat
ure
Sensor
Fault
Minor
Cause ID = 1–13
1. [HVAC-No] The cable
is not connected
securely or correctly.
2. The sensor is
damaged,
open-circuited, or
short-circuited.
1. Shut down the system at a proper time and
take security protection measures.
2. Check whether any cable is loose.
3. Replace the ambient temperature sensor.
3819
Air
Conditio
ner
Evaporat
or Frozen
Minor
Cause ID = 1–13
1. [HVAC-No] The air
intake or exhaust of
the cabinet is blocked.
2. The indoor fan is
faulty.
3. The cooling system
cannot be shut down in
a timely manner.
4. The evaporator
temperature sensor is
faulty.
1. Check whether the air intake or exhaust
vent is blocked. If yes, clean it.
2. If the fault persists, contact your technical
support.
3820
Frequent
Air
Conditio
ner
System
High
Pressure
Alarm
Cause ID = 1–13
1. [HVAC-No] The
condenser is blocked
or has scale.
2. The condenser fan is
faulty.
3. The external air flow
is short-circuited or
1. Check whether the outdoor heat exchanger
is blocked by dirt. If yes, clean it using a
high-pressure water gun.
2. Check whether the outdoor fan is running
properly. If not, replace it.
3. Check whether the air intake or exhaust
vent of the outdoor fan is blocked. If yes,
clean the air intake or exhaust vent.