Huawei NetCol8000-A013 User Manual page 106

NetCol8000-A013 In-room Air Cooled Smart Cooling
Product
User Manual (600 mm Width)
Alarm Alarm Name
ID
707 OutUnit Comm
Interrupt Alarm
708 OutUnit Comm
Fail
709 OutUnit
Mainboard Fault
710 OutUnit Power
Hardware Fault
Issue 02 (2020-11-09)
System Possible Causes
Action
The 1. The signal cables of
compressor
shuts down.
2. The signal cables of
3. The connector of
4. The outdoor unit
The The communication
compressor between the main
shuts down. control board of the
outdoor unit and the
compressor drive board
is faulty.
-- The E square of the
main control board of
the outdoor unit is
faulty.
The The compressor drive
compressor board reports L0.
shuts down.
Copyright © Huawei Technologies Co., Ltd.
5 System Operation and Maintenance
the indoor and
outdoor units are
incorrectly
connected.
the indoor and
outdoor units are
not shielded.
the signal cable of
the indoor or
outdoor unit is
loose.
powers off.
Solution
1. Connect the signal
cables according to
the correct wire
sequence.
2. Use shielded signal
cables.
3. Check and
reconnect any loose
cable or connector.
4. Power on the
outdoor unit.
1. Check whether the
power supply to the
compressor drive
board is normal.
2. Replace the
compressor drive
board if it is
damaged.
Replace the main
control board of the
outdoor unit.
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.
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