Huawei LUNA2000-2.0MWH-1H0 User Manual page 144

LUNA2000-2.0MWH-1H0, 2H0 Smart String ESS
User Manual
Alar Alarm
m ID Name
3808 Air
Condition
er
External
Fan Fault
3809 Air
Condition
er
Compress
or Fault
3810 Air
Condition
er Return
Air
Temperat
ure
Sensor
Faulty
3811 Air
Condition
er Return
Air
Temperat
ure
Sensor
Fault
3812 Air
Condition
er System
High
Pressure
Alarm
Issue 02 (2021-11-15)
Severit Possible Causes
y
Major
Major Cause ID=1-13
1. The cable is not
connected securely or
correctly.
2. The compressor
protector is
disconnected.
Major Cause ID=1-13
1. The cable is not
connected securely or
correctly.
2. The sensor is
damaged, open-
circuited, or short-
circuited.
Major
Major Cause ID=1-13
1. The condenser is
blocked or has scale.
2. The condenser fan is
faulty.
3. The external air flow
experiences a shortcut
or is blocked.
Copyright © Huawei Technologies Co., Ltd.
Troubleshooting Suggestions
1. Check whether the cables are
securely and correctly connected
based on the circuit diagram.
2. Check whether the compressor coil
is open-circuited. If yes, wait until
the coil cools down and the
compressor coil automatically
resets.
3. If the fault persists, contact your
dealer or Huawei technical support.
1. Check whether the cables are
securely and correctly connected
based on the circuit diagram.
2. Replace the temperature sensor.
3. If the fault persists, contact your
dealer or Huawei technical support.
1. Clean the outdoor heat exchanger.
2. Repair or replace the outdoor fan.
3. Check whether there are obstacles
in front of the air or exhaust vent of
the outdoor fan.
4. If the fault persists, contact your
dealer or Huawei technical support.
10 Alarm Reference
136