Huawei NetCol5000-A050 - Outdoor unit communication failed

Alarm
ID
Alarm Name Alar
m
Seve
rity
Possible Cause Solution
A134-0
1
Compressor
suction
temperature
sensor fault
MAJ
OR
1. The cables to
the suction
temperature
sensor are loose or
damaged.
2. The suction
temperature
sensor is faulty.
1. Check cables to the
suction temperature
sensor.
2. Maintain or replace
the suction temperature
sensor.
A143-0
1
Outdoor unit
communicatio
n failed
MAJ
OR
1. The
communications
cable between the
indoor and
outdoor units is
not properly
connected.
2. The outdoor fan
drive is faulty.
3. The outdoor
unit is not
powered on.
4. The
communications
port of the main
control board is
faulty.
1. Check the
communications cable
between the indoor and
outdoor units.
2. Maintain or replace
the outdoor fan drive.
3. Power on the
outdoor unit.
4. Maintain or replace
the main control board.
NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual 9 Alarm Reference
Issue 08 (2021-09-17) Copyright © Huawei Technologies Co., Ltd. 207