Hisense GBF18H-S User Manual page 103

7 . T R O U B L E S H O
7 . T R O U B L E S H O
Faul
t
Fault Description
cod
e
Replenish gas board and
46-2 control board communication
fault
Discharge temperature too
47
high fault
the outdoor DC fan motor fault
48
(upper fan motor)
the outdoor upper DC fan
motor Locked rotor fault
48-1
the outdoor upper DC fan motor
48-2
stall fault
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 cable between the control board and
replenish gas board connect loose;
2.The cable between the control board and
replenish gas board is failure;
3.The replenish gas board is failure
4.The control board is failure
1. The refrigerant of the unit is not enough;
2.The refrigerant of the unit is not enough due
to add the length of the installation pipe
3.Throttling service is failure;
4.The outdoor ambient temperature is too
high
1.The wiring of the up DC fan motor connect
loose;
2. The cord of the up DC fan motor is failure;
3.The up DC fan motor is failure;
4. The drive circuit of the up DC fan motor is
failure;
5. The outdoor fan has been blocked.
1.The fan motor motor rotation blockage;
2. The fan motor is failure;
3.The outdoor control board is failure;
4. The driver board is failure;
1. The fan motor is failure;
2.The outdoor control board is failure;
3. The driver board is failure;
How to Deal With
4.Replace the control board.
1.Reconnect the cable between the
control board and the replenish gas
board;
2.Replace the communication cable
between the control board and the
replenish gas board;
3.Replace the replenish gas board ;
4.Replace the control board.
1.Check the welding point to confirm
whether the unit has exist leakage
point, and then add some refrigerant.
2.Add some refrigerant refer to the
installation user manual;
3.Replace the throttling service(such
as capillary, expansion valve)
4. Normally protection.
1.Reconnect the wiring of the up DC
fan motor;
2.Replace the up DC fan motor;
3. Replace the up DC fan motor;
4.Replace the driver board of the fan
motor;
5. Check the outdoor fan and ensure
the outdoor fan can run normally.
1. Remove the fan motor locked-rotor
sundry, recover motor operating
conditions;
2. Replace the upper DC fan motor;
3. Replace the outdoor control board ;
4 .Replace the driver board .
1. Replace the upper fan motor;
2. Replace the outdoor control board ;
3 .Replace the driver board .
REMARKS
Applied for
VRF
VRF
VRF
101