Huawei NetCol5000-A025 - Page 223

Al
ar
m
ID
Alarm
Name
Ala
rm
Sev
erit
y
Impact Possible Causes Solution
a2
8
b
Comp
high
dischar
ge
temper
ature
alarm
CRI
TIC
AL
Generates
an alarm
and shuts
down the
compressor.
1. The refrigerant
leaks.
2. The condenser
ns are dirty or
blocked.
3. The ambient
temperature
exceeds the
upper threshold.
4. The temperature
displayed by the
exhaust air
temperature
sensor is
dierent from
the actual
temperature.
5. The input power
of the outdoor
unit has an open
phase, incorrect
phase sequence,
or is unavailable.
6. Cables to the
indoor or
outdoor fan are
not properly
connected.
7. The outdoor fan
or its drive is
faulty.
1. Identify and repair
the leaking point,
and rell
refrigerant after
maintenance.
2. Clean the
condenser
ns.
3. Measure the
ambient
temperature.
4. Calibrate or replace
the temperature
sensor.
5. Check the input
power of the
outdoor unit.
6. Check the cables to
the indoor and
outdoor fans.
7. Maintain or replace
the outdoor fan or
its drive.
NetCol5000-A025 In-row Air Cooled Smart Cooling
Product
User Manual (300 mm Width) 6 System Operation and Maintenance
Issue 15 (2020-12-10) Copyright © Huawei Technologies Co., Ltd. 213