Huawei NetCol5000-A025 - Page 205

Al
ar
m
ID
Alarm
Name
Ala
rm
Sev
erit
y
Impact Possible Causes Solution
a0
7
7
Indoor
fan
1/2/3/4
/5/6/7
fault
MA
JOR
Generates
an alarm.
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. Check the power
supply to the fan.
2. Check the cable
connection to the
fan.
3. Maintain or replace
the fan.
a0
7
9
Drain
abnorm
al
alarm
MA
JOR
Generates
an alarm
and shuts
down the
compressor.
1. The drainage
lter is blocked.
2. The drainpipe is
blocked.
3. The drain pump
is faulty.
4. The low liquid
level sensor is
faulty.
1. Clear the foreign
matter in the water
pan and lter.
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.
a0
8
9
Compre
ssor
drive
speed
limit
alarm
MA
JOR
Generates
an alarm.
1. The compressor
lacks oil.
2. The refrigerant
leaks.
1. Fill oil to the
compressor.
2. Identify and repair
the leaking point,
and rell
refrigerant after
maintenance.
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. 195