Hisense AUC-18HR4SUAA, Technical & Service Manual

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7
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ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0
101
The following is the fault code table of indoor.
Sheet 2 Indoor Error Code List
Fault
code
Fault Description Possible Reason of Abnormality How to Deal With REMARKS
31
The buttons of the front
panel AD fault
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. Replace the display board;
2. Replace the cable of the display
board;
3. Replace the display board;
4. Replace the indoor control board.
Only for
MUTI-SPLIT
32
The front panel fault is not
in place
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. 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.
Only for
MUTI-SPLIT
33
Room temperature sensor
fault
1. The cable of the indoor room
temperature sensor connect loose;
2. The indoor room temperature
sensor is
failure;
3. The sampling circuit is abnormal.
1.Reconnect the cable of the indoor
room temperature sensor;
2.Replace the indoor room
temperature sensor;
3. Replace the indoor control board.
Only for
MUTI-SPLIT
34
Coil temperature sensor
fault
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. Reconnect the cable of the indoor
room temperature sensor;
2. Replace the indoor room
temperature sensor;
3. Replace the indoor control board.
Only for
MUTI-SPLIT
35
Panel drive fault
(two upper and
lower panel position
detection switch is not in
accordance with the
reservation timing action)
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. 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.
Only for
MUTI-SPLIT