Huawei LUNA2000-2.0MWH-1H0 User Manual page 146

LUNA2000-2.0MWH-1H0, 2H0 Smart String ESS
User Manual
Alar Alarm
m ID Name
3817 Air
Condition
er
Condense
r
Temperat
ure
Sensor
Fault
3818 Air
Condition
er
Ambient
Temperat
ure
Sensor
Fault
3819 Air
Condition
er
Evaporat
or Frozen
3820 Frequent
Air
Condition
er System
High
Pressure
Alarm
Issue 02 (2021-11-15)
Severit Possible Causes
y
Minor
Minor
Minor Cause ID=1-13
1. The air intake or
exhaust 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.
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 that the air intake vent and
air exhaust vent of the equipment
room are not blocked.
2. Check whether the indoor fan
works properly.
3. Check the main control board of
the cooling system and related
electrical control.
4. Replace the temperature sensor.
5. 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
138