Huawei NetCol5000-A025 - Page 224

Al
ar
m
ID
Alarm
Name
Ala
rm
Sev
erit
y
Impact Possible Causes Solution
a2
8c
Comp
high
dischar
ge
pressur
e alarm
CRI
TIC
AL
Generates
an alarm
and shuts
down the
compressor.
1. The input power
of the outdoor
unit has an open
phase, incorrect
phase sequence,
or is unavailable.
2. Cables to the
indoor or
outdoor fan are
not properly
connected.
3. The condenser
ns are dirty or
blocked.
4. The outdoor fan
or its drive is
faulty.
5. The high
pressure switch
is faulty.
6. The refrigerant
is
overlled.
1. Check the input
power of the
outdoor unit.
2. Check the cables to
the indoor and
outdoor fans.
3. Clean the
condenser
ns.
4. Maintain or replace
the outdoor fan or
its drive.
5. Maintain or replace
the high pressure
switch.
6. Decrease certain
amount of
refrigerant.
7. Maintain or replace
the exhaust fan.
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. 214