Hisense ADT-12UX4SSNL3 Technical & Service Manual page 132

T R O U B L E S H O
T R O U B L E S H O
1 4 .
1 4 .
The following is the fault code table of indoor.
Fault
Fault Description
code
Drainage
51
protection
Communication
64 between Indoor &
Outdoor unit Fault
Indoor fan motor
72
fault
Indoor EEPROM
73
Data 1 fault
Indoor EEPROM
74
Data 2 error
Indoor ambient
81 Temperature
Sensor Fault
DC-� INVERTER AIR CONDITIONER TECHNICAL&SERVICE MANUAL
O T I N G
O T I N G
Sheet 2 Indoor fault code
Possible Reason of Abnormality
1. The water level of the drain pan
exceed safe level;
2. The cable of the water level switch
connect loose;
3.The water level switch is failure;
4. The control board is failure.
1. The connection cable between the
indoor unit and the outdoor unit
connect wrong;
2.The communication cable 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 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.
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.
EE in MCU is failure,the unit can
run ,but the function user has set is
ineffective.
1. The cable of the room temperature
sensor connect loose;
2. The room temperature sensor is
failure;
3. The sampling circuit is abnormally.
How to Deal With
1.1 Check whether there are something
to block the drain hose or the height
of the drain hose is too high;
1.2 Check the water pump and replace
the water pump if the water pump is
failure;
2. Reconnect the cable of the water
level switch refer to the wiring
diagram;
3. Replace the water level switch;
4. Replace the control board.
1. Reconnect the connection cable
refer to the indoor and outdoor wiring
diagram;
2. Reconnect the communication
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 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.
Replace EE data in MCU.
1.Reconnect the cable of the room
temperature sensor;
2. Replace the room temperature
sensor;
3. Replace the indoor control board.
Remarks
130