Hisense AUD-18UX4SGKL Service Manual page 73

7.TROUBLE SHOOTING
2 Indoor unit error code:
When the failure happens in the indoor unit or the outdoor unit, after the compressor
turns off, when you press the sleep button of the remote control for 4 times, the indoor
display board will display the following error code, if the indoor unit installs with the
wire control device, the error code will display on the wire control device directly:
er
ro
error
r
description
co
de
The buttons of
31 the front panel
AD fault
The front panel
32 can not go to
the right place
The indoor room
33 temperature
sensor fault
The indoor coil
34 temperature
sensor fault
The front panel
35
drive fault
The
communication
between the
36
indoor unit and
the outdoor unit
is failure
sheet 2 indoor error code list
the root cause may be one of the
reason
1. The buttons are failure;
2. The cable of the display board is failure;
3. The display board is failure;
4. The indoor control board is failure.
1.The front panel has been blocked;
2. The connection cable of the switch and
the motor connect loose;
3. The switch is failure;
4. The motor of the front panel is failure;
5. The indoor control board is failure.
1. The cable of
temperature sensor connect loose;
2. The indoor room temperature sensor is
failure;
3. The sampling circuit is abnormal.
1. The cable of the indoor coil temperature
sensor connect loose;
2. The indoor coil temperature sensor is
failure;
3.The sampling circuit is abnormal.
1.The front panel has been blocked;
2. The connection cable of the switch and
the motor connect loose;
3. The switch is failure;
4. The motor of the front panel is failure;
5. The indoor control board is failure.
1. The connection cable between the indoor
unit and the outdoor unit connect wrong;
2.The communication cable between the
indoor unit and the outdoor unit connect
loose or the cable between the indoor
control board to terminal connect loose or
the cable between the outdoor control
board to the terminal connect loose;
3.The communication cable between the
indoor unit and the outdoor unit is failure or
the cable between the indoor control board
to terminal is failure or the cable between
the outdoor control board to the terminal is
failure;
4. The indoor control board is failure;
the indoor room
how to deal with
1. Replace the display board;
2. Replace the cable of the display
board;
3. Replace the display board;
4. Replace the indoor control board.
1. Reassembly the front panel;
2. Reconnect the cable of the switch
and panel motor.
3.Replace the switch;
4. Replace the motor of the front
panel;
5. Replace the indoor control board.
1.Reconnect the cable of the indoor
room temperature sensor;
2.Replace the
temperature sensor;
3. Replace the indoor control board.
1. Reconnect the cable of the indoor
room temperature sensor;
2. Replace the
temperature sensor;
3. Replace the indoor control board.
1. Reassembly the front panel;
2. Reconnect the cable of the switch
and panel motor.
3. Replace the switch;
4. Replace the motor of the front
panel;
5. Replace the indoor control board.
1. Reconnect the connection cable
refer to the indoor and outdoor
wiring diagram;
2. Reconnect the
cable refer to the indoor and outdoor
wiring diagram;
3. Replace the communication cable
refer to the indoor and outdoor
wiring diagram;
4.Replace the indoor control board;
5. Replace the outdoor control board.
indoor room
indoor room
communication