Huawei NetCol5000-A050 - Page 230

Alarm
ID
Alarm Name Alar
m
Seve
rity
Possible Cause Solution
A27F-0
1
Water
overow
alarm
CRITI
CAL
1. The water
overow sensor
detects water or
the sensor is
faulty.
2. The drainage
lter is blocked.
3. The drainpipe is
blocked.
4. The drain pump
is faulty.
5. The high liquid
level sensor is
faulty.
1. While conguring the
water overow sensor,
check and clear the
water source, and
maintain or replace the
sensor.
2. Clear the foreign
matter in the water pan
and
lter. Then, press
and hold down the low
oat (if there is) for 3s
and release it.
3. Check that the
drainpipe is not blocked
or bent. Then, press
and hold down the low
oat (if there is) for 3s
and release it.
4. If the drain pump is
congured, check its
cable connections, clear
the foreign matter in it,
or replace it.
5. While
conguring the
high liquid level sensor,
check its cable
connections, clear the
obstacles, or replace it.
A280-0
2
Power
frequency
abnormal
MAJ
OR
1. The power
supply frequency
exceeds the upper
threshold.
2. The SPD and
voltage detection
board is faulty.
1. Check the power
supply frequency, and
ensure that it is within
the working range.
2. Replace the SPD and
voltage detection
board.
A280-0
1
Power
frequency
abnormal
MAJ
OR
1. The power
supply frequency
is below the lower
threshold.
2. The SPD and
voltage detection
board is faulty.
1. Check the power
supply frequency, and
ensure that it is within
the working range.
2. Replace the SPD and
voltage detection
board.
NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual 9 Alarm Reference
Issue 08 (2021-09-17) Copyright © Huawei Technologies Co., Ltd. 220