Huawei NetCol5000-A021 User Manual page 180

NetCol5000-A021 In-row Air Cooled Smart Cooling
Product
User Manual (208 V)
Alarm Alarm Name
ID
a131 Drainage
solenoid fault
a132 Cylinder
maintenance
due
a133 Cylinder
replacement
due
a134 Suction temp
sensor fault
a136 EEV low
overheating
degree
a137 EEV low
overheating
locked
Issue 03 (2020-01-10)
Alarm Impact
Severity
Major The humidifier
is shut down.
Warning The alarm is
generated.
Major The humidifier
is shut down.
Major The alarm is
generated.
Major The alarm is
generated, and
the compressor
is shut down.
Critical The alarm is
generated, and
the compressor
is shut down.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes Solution
The drainage Replace the drainage solenoid
solenoid valve is valve.
faulty.
NOTE
The scheduled Clean the humidifier
humidifier cylinder cylinder.
maintenance time
is reached.
The running time Replace the humidifier
of the humidifier cylinder.
cylinder has
reached the set
threshold.
1. Cables to the 1. Check cables to the
temperature
sensor are not
2. Maintain or replace the
properly
connected.
2. The
temperature
sensor is faulty.
1. The electronic 1. Reinstall the electronic
expansion valve
coil is loose.
2. Replace the electronic
2. The electronic
expansion valve
3. Replace the electronic
coil is faulty.
3. The electronic
4. Maintain or replace
expansion valve
is faulty.
4. The dehumid
solenoid valve
coil is faulty.
1. The electronic 1. Reinstall the electronic
expansion valve
coil is loose.
2. Replace the electronic
2. The electronic
expansion valve
3. Replace the electronic
coil is faulty.
3. The electronic
4. Maintain or replace
expansion valve
is faulty.
4. The dehumid
NOTE
solenoid valve
coil is faulty.
Manual clear on the alarm page.
After the alarm is rectified, click
Manual clear on the alarm page.
temperature sensor.
temperature sensor.
expansion valve coil.
expansion valve coil.
expansion valve.
dehumid solenoid valve
coil.
expansion valve coil.
expansion valve coil.
expansion valve.
dehumid solenoid valve
coil.
After the alarm is rectified, click
Manual clear on the alarm page.
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