Table 6-5 Yearly Maintenance
Item Method Troubleshooting
T/H sensor Check that the
temperature and humidity
readings are correct as
measured.
If the temperature deviation is
greater than 1°C or humidity
deviation is greater than 5%,
calibrate or replace the T/H sensor.
Evaporator Check that no foreign
matter exists on the
evaporator surface.
Clear the foreign matter.
6.3 Alarm Reference
Table Alarm reference describes alarms for the in-row air cooled smart cooling
product NetCol5000-A.
Table 6-6 Alarm reference
Al
ar
m
ID
Alarm
Name
Ala
rm
Sev
erit
y
Impact Possible Causes Solution
a0
0
1
Return
air 1
temper
ature
sensor
fault
MA
JOR
Generates
an alarm.
1. The cables to
the temperature
sensor are loose
or damaged.
2. The temperature
sensor is faulty.
1. Check the cables to
the temperature
sensor.
2. Maintain or replace
the temperature
sensor.
Supply
air 1/2
temper
ature
sensor
fault
MA
JOR
Generates
an alarm.
1. The cables to
the temperature
sensor are loose
or damaged.
2. The temperature
sensor is faulty.
1. Check the cables to
the temperature
sensor.
2. Maintain or replace
the temperature
sensor.
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. 182