Hisense GBF18H-S User Manual page 110

7 . T R O U B L E S H O
7 . T R O U B L E S H O
Fault
Fault Description
code
Communication between
64
Indoor & Outdoor unit Fault
The indoor unit can not
65 receive the sign of the
wiring controller
71 Indoor unit zero check fault
72 Indoor fan motor fault
Indoor EEPROM Data 1
73
fault
IndoorEEPROM Data 2
74
error
ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V6.0
O T I N G
O T I N G
Possible Reason of Abnormality
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 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 motor wire is loosen;
2. The motor connect is open;
3. The motor is failure;
4. Control board is failure.
5. Indoor fan is baffled.
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 faiure,the unit can
run ,but the function user has set is
eneffective.
How to Deal With
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 wiring
controller;
2. Replace the cable of the wiring
controller;
3. Replace the wiring controller;
4. Replace the indoor control board.
1. Replace the motor wire and make sure
the wire connect is well;
2. Replace the motor wire;
3. Change the motor;
4. Change the indoor control board;
5. Check and elimination of fan motor
rotation.
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.
REMARKS
For VRF
Only for VRF
indoor unit
108