Huawei NetCol5000-A025 User Manual page 205

NetCol5000-A025 In-row Air Cooled Smart Cooling
Product
User Manual (300 mm Width)
Al
ar
m
ID
a0
7
7
a0
7
9
a0
8
9
Issue 15 (2020-12-10)
Alarm Ala Impact
Name rm
Sev
erit
y
Indoor MA Generates
fan JOR an alarm.
1/2/3/4
/5/6/7
fault
Drain MA Generates
abnorm JOR an alarm
al and shuts
alarm down the
compressor.
Compre MA Generates
ssor JOR an alarm.
drive
speed
limit
alarm
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes
1. The power
supply to the fan
is abnormal.
2. The cable to the
fan is not
connected
properly.
3. The fan is faulty.
1. The drainage
filter is blocked.
2. The drainpipe is
blocked.
3. The drain pump
is faulty.
4. The low liquid
level sensor is
faulty.
1. The compressor
lacks oil.
2. The refrigerant
leaks.
Solution
1. Check the power
supply to the fan.
2. Check the cable
connection to the
fan.
3. Maintain or replace
the fan.
1. Clear the foreign
matter in the water
pan and filter.
2. Check that the
drainpipe is not
blocked or bent.
3. Check the cables to
the drain pump,
clear the foreign
matter in the
pump, or replace
the pump.
4. Check the cables to
the low liquid level
sensor, clear the
obstacles, or
replace the low
liquid level sensor.
1. Fill oil to the
compressor.
2. Identify and repair
the leaking point,
and refill
refrigerant after
maintenance.
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