Hisense AUD-18UX4SGKL Service Manual page 75

7.TROUBLE SHOOTING
The address of
61 the indoor unit
repeat fault
The address of
the wiring
62
controller
repeat fault
The
communication
between the
64
indoor unit and
the outdoor unit
is failure
The indoor unit
can not receive
65
the sign of the
wiring controller
Indoor
71 zero-crossing
detection fault
The indoor fan
72
motor fault
Indoor EEPROM
73
fault
The panel drive
74
fault
The panel
80
button AD fault
The indoor room
81 temperature
sensor fault
1. Two or more two indoor units has set
with the same address
1. When the same indoor unit with more
than one wiring controller, a number of the
address of the wiring controller is same
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;
5. The outdoor control board is failure.
1.The cable of the wiring controller connect
loose;
2.The cable of the wiring controller is
failure;
3.The wiring controller is failure;
4. The indoor control board is failure.
1.The zero-crossing detection circuit is
abnormally
1. The cable of the indoor fan motor
connect loose;
2. The cable of the indoor fan motor is
failure;
3.The indoor fan motor is failure;
4. The indoor control board is failure;
5.The indoor fan has been blocked.
1.Indoor EE components is failure;
2.The control circuit of the EE components
is failure;
3.The EE components has been inserted
with opposite direction
1.The front panel has been blocked;
2.The cable of the switch and the motor
connect loose;
3. The switch is failure;
4. The panel motor is failure;
5. The indoor control board is failure.
1. The button is 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 cable of the room temperature
sensor connect loose;
2. The room temperature sensor is failure;
3. The sampling circuit is abnormally
1. Reset the address of the indoor unit
and it should avoid the address
repeat.
1. Reset the address of the wiring
controller and avoid the address of
the wiring controller repeat.
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.
1.Reconnect the cable of the wiring
controller;
2. Replace the cable of the wiring
controller;
3. Replace the wiring controller;
4. Replace the indoor control board.
1. Replace the indoor control board
1. Reconnect the cable of the fan
motor;
2. Replace the cable of the fan motor;
3. Replace the fan motor;
4. Replace the indoor control board;
5. Check the indoor fan and ensure
the indoor fan can run normally.
1. Replace the EE components;
2. Replace the indoor control board;
3. Reassembly the EE components of
the indoor control board
1. Reassembly the front panel;
2. Reconnect the cable of the switch
and the panel motor;
3.Replace the switch components;
4. Replace the panel motor;
5. Replace the indoor control board.
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.Reconnect the cable of the room
temperature sensor;
2. Replace the room temperature
sensor;
communication