Huawei NetCol8000-A045D User Manual page 241

NetCol8000-A(045, 055, 060, 090, 120) In-room Air
Cooled Smart Cooling Product
User Manual
Alarm ID Alarm Name
A059-01 Compressor 1 suction
pressure sensor fault
Compressor 2 suction
pressure sensor fault
A063-01 Compressor 1 drive
communication failed
alarm
Compressor 2 drive
communication failed
alarm
A069-01 Compressor 1 start
failure alarm
Compressor 2 start
failure alarm
A077-02 Indoor fan 1 fault
A077-10 Indoor fan 2 fault
A077-04 Indoor fan 1 fault
A077-08 Indoor fan 2 fault
A089-01 Compressor 1 drive
speed limit alarm
Compressor 2 drive
speed limit alarm
Issue 05 (2020-10-10)
Alarm
Severity
Major
Major
Major
Major
Major
Major
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
● The cables to the
pressure sensor are
loose or damaged.
● The pressure sensor
is faulty.
● The cables to the
compressor drive
are loose or
damaged.
● The compressor
drive is faulty.
● The compressor
lacks oil.
● The compressor is
faulty.
● The compressor
drive is faulty.
The fan is faulty.
The fan drive is faulty.
● The compressor
lacks oil.
● The refrigerant
leaks.
10 Alarm Reference
Solution
1. Check the cables to
the pressure sensor.
2. Replace the
pressure sensor
1. Check the cables to
the compressor
drive.
2. Maintain or replace
the compressor
drive.
1. Fill oil to the
compressor.
2. Maintain or replace
the compressor.
3. Maintain or replace
the compressor
drive.
Maintain or replace
the fan.
If the drive is
integrated into the
fan, replace the fan.
If the drive is separate
from the fan, replace
the drive.
1. Fill oil to the
compressor.
2. Identify and repair
the leaking point,
and refill
refrigerant after
maintenance.
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