Huawei NetCol8000-A013 User Manual page 114

NetCol8000-A013 In-room Air Cooled Smart Cooling
Product
User Manual (600 mm Width)
Alarm Alarm Name
ID
718 Teamwork
Network Fail
Alarm
719 InUnit EEPROM
Alarm
720 InUnit Flash
Alarm
721 InUnit Clock
Abnormal Alarm
722 Smoke Sensor
Power Alarm
723 Evaporator Coils
Temp Invalid
724 Condensation
Temp sensor fault
Issue 04 (2022-11-25)
System
Action
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--
The
compressor
shuts down.
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Copyright © Huawei Digital Power Technologies Co., Ltd.
5 System Operation and Maintenance
Possible Causes
1. The teamwork
master unit powers
off.
2. The teamwork
connection fails.
3. The master unit and
a slave unit have
the same address.
The E square of the
main control board of
the indoor unit is
faulty.
The flash memory of
the main control board
of the indoor unit is
faulty.
The clock circuit of the
main control board of
the indoor unit is
faulty.
The voltage of the
smoke sensor circuit of
the main control board
of the indoor unit
exceeds the preset
threshold.
1. The temperature
sensor cable is not
properly connected.
2. The temperature
sensor is faulty.
1. The temperature
sensor cable is not
properly connected.
2. The temperature
sensor is faulty.
Solution
1. Check the master
unit that has
powered off and
power it on.
2. Check and re-detect
the teamwork
connection.
3. Check and set the
correct address.
Replace the main
control board of the
indoor unit.
Replace the main
control board of the
indoor unit.
Replace the main
control board of the
indoor unit.
Replace the main
control board of the
indoor unit.
1. Check the cable
connection to the
temperature sensor.
2. Maintain or replace
the temperature
sensor.
1. Check the cable
connection to the
temperature sensor.
2. Maintain or replace
the temperature
sensor.
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