Huawei NetCol8000-A013 User Manual page 112

NetCol8000-A013 In-room Air Cooled Smart Cooling
Product
User Manual (600 mm Width)
Alarm Alarm Name
ID
710 OutUnit Power
Hardware Fault
711 Return Air Temp/
Humid Invalid
712 Supply Air Temp/
Humid Invalid
713 Power Undervolt
Alarm
Issue 04 (2022-11-25)
System
Action
The
compressor
shuts down.
The
compressor,
electric heater,
and humidifier
shut down.
(711 and 712
are triggered
at the same
time or
cooling is
forcibly shut
down.)
The
compressor,
electric heater,
and humidifier
shut down.
(711 and 712
are triggered
at the same
time.)
The system
shuts down all
components.
Copyright © Huawei Digital Power Technologies Co., Ltd.
5 System Operation and Maintenance
Possible Causes
The compressor drive
board reports L0.
1. The T/H sensor
cable is not properly
connected.
2. The T/H sensor is
faulty.
1. The temperature
sensor cable is not
properly connected.
2. The temperature
sensor is faulty.
1. The power supply
voltage of the
indoor unit is too
low.
2. The power supply
voltage of the
outdoor unit is too
low.
Solution
1. Check the
compressor running
status.
2. Check the running
status of the
outdoor unit on the
LCD of the indoor
unit.
3. Check the cables
between the
compressor and the
compressor drive
board.
4. Replace the
compressor drive
board or
compressor.
1. Check the cable to
the T/H sensor.
2. Maintain or replace
the T/H sensor.
1. Check the cable
connection to the
temperature sensor.
2. Maintain or replace
the temperature
sensor.
1. Increase the power
supply voltage of
the indoor unit.
2. Increase the power
supply voltage of
the outdoor unit.
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