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10
Routine maintenance
No. Operation
1
Check whether an air filter is blocked.
2
Check whether an air filter is damaged or deformed. Replace the air filter.
3
Check whether the exhaust valve is leaking.
4
Check that screws fastening the condensate pump
and water sensor are securely connected.
5
The humidifier cylinder interior wall is free from
layered water scale.
6
The electric heater surface is not eroded, dirtied, or
blocked.
7
Humidity and temperature sensors in smart cooling
products and aisles are securely installed.
For details about routine maintenance tasks, please download NetCol5000-C030 In-row Chilled
Water Smart Cooling Product User Manual (Simple Configuration) from Huawei technical support
website.
11
Troubleshooting
Temperature Sensor Fault
11.1
Symptom A high temperature alarm is generated for the inlet or
outlet water, or the communication with the inlet or
outlet water temperature sensors has been interrupted.
1. Locate the sensor at the same position on the
Find the
upstream smart cooling product along the main pipe,
Cause
and check whether the temperature display is within
a difference of 2º C compared with the sensor for
which an alarm has been generated.
2. Swap the inlet and outlet water temperature
sensors, and verify whether the water temperature
is abnormal or a sensor is faulty.
Cause
A temperature sensor cable has loosened, a sensor
has loosened, or a sensor has become faulty.
Troubles
1. Secure the sensor and tighten cable connectors. If
the alarm disappears, the troubleshooting is
hooting
complete. If the alarm persists, the temperature
sensor has become faulty, and you can contact
Huawei Technical Support to obtain a new
temperature sensor.
2. Use the needle-nose pliers to clip out the spring
tongue fastening the water inlet or outlet
temperature sensor and remove the sensor probe.
Remove the waterproof connector from the sensor
cable. Secure the spring tongue and reconnect the
waterproof connector to the sensor cable. If the
alarm disappears, the troubleshooting is complete.
If the alarm persists, contact Huawei Technical
Support for help.
Troubleshooting
Clean (water can be used) or
replace the air filter.
Shut down the exhaust valve.
Secure the screws tightly.
Replace the humidifier cylinder.
Huawei recommends replacing
the humidifier cylinder once
every six months.
Replace the electric heater.
Secure the sensors again.
21
Period
Monthly
Monthly
Monthly
Monthly
Monthly
Monthly
Monthly
Outlet water
temp. sensor
Inlet water
temp. sensor
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