Huawei NetCol8000-A045D - Page 236

Alarm ID Alarm Name Alarm
Severity
Possible Cause Solution
A044-01 Smoke sensor alarm Critical ● Smoke is generated
in the equipment
room.
● The cables to the
smoke sensor are
loose or damaged.
● The smoke sensor
is faulty.
1. Expel smoke from
the equipment
room and reset the
smoke sensor.
2. Check the cables to
the smoke sensor.
3. Maintain or replace
the smoke sensor.
A046-01 Compressor 1
antifreeze protection
alarm
Compressor 2
antifreeze protection
alarm
Major ● The refrigerant
leaks.
● The solenoid valve
is faulty.
● The value detected
by the pressure
sensor is
dierent
from the actual
value.
● The
lter dryer is
blocked.
● The expansion
valve is blocked or
stuck, or the
expansion valve coil
and cable
connections are
faulty.
● The indoor fan is
faulty.
● The ambient
temperature is
below the lower
threshold.
1. Identify and repair
the leaking point,
and rell
refrigerant after
maintenance.
2. Maintain or replace
the solenoid valve
coil or the solenoid
valve.
3. Calibrate or replace
the pressure sensor.
4. Maintain or replace
the
lter dryer.
5. Maintain or replace
the expansion valve
or the coil, and
reconnect cables.
6. Maintain or replace
the indoor fan.
7. Measure the
ambient
temperature.
NetCol8000-A(045, 055, 060, 090, 120) In-room Air
Cooled Smart Cooling Product
User Manual 10 Alarm Reference
Issue 05 (2020-10-10) Copyright © Huawei Technologies Co., Ltd. 226