Hisense GBF18H-S User Manual page 104

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
the outdoor DC fan motor fault
49
(down fan motor)
the outdoor lower DC fan
49-1
motor Locked rotor fault
he outdoor lower DC fan motor
49-2
stall fault
Expansion valve E
50
temperature sensor fault
63 Current sensor fault
Radiator temperature sensor
66
fault
67 Radiator temperature protect
Water temperature sensor 1
76
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 wiring of the down DC fan motor
connect loose;
2.The cord of the down DC fan motor is
failure;
3. The down DC fan motor is failure;
4. The drive circuit of the down DCfan 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;
1. The wiring of the sensor connect loose;
2.The sensor of the expansion valve Eis
failure;
3. The sampling circuit is abnormally
1. The wiring of the current sensor connect
loose;
2.The current sensor is failure;
3. The sampling circuit is abnormally
1. The sensor connect is loose;
2.The current sensor is failure;
3. The sampling circuit is abnormally
1.The wiring of the temperature sensor
connect loose;
2.The temperature sensor is failure;
3.The sampling circuit is abnormally
How to Deal With
1. Reconnect the wiring of the down DC
fan motor;
2. Replace the down DC fan motor;
3.Replace the down DC fan motor;
4.Replace the driver board of the fan
motor;
5. Check the outdoor fan and
ensurethe outdoor fan can run
normally.
1. Remove the fan motor locked-rotor
sundry, recover motor operating
conditions;
2. Replace the lower DC fan motor;
3. Replace the outdoor control board ;
4 .Replace the driver board .
1. Replace thelower fan motor;
2. Replace the outdoor control board ;
3 .Replace the driver board .
1. Reconnect the wiring of the sensor;
2. Replace the sensor for the
expansion valve E;
3. Replace the outdoor control board.
1. Reconnect the wiring of the sensor;
2. Replace the current sensor;
3. Replace the outdoor control board.
1. Reconnect the wiring ;
2. Replace the temperature sensor;
3. Replace the outdoor control board.
1.Reconnect the wiring of the
temperature sensor;
2.Replace the temperature sensor;
3.Replace the control board.
REMARKS
VRF
VRF
FOR Branch
Box
Application
of
three-phase
power
supply
ON/OFF
unitary
models
reserved
For Heat
pump water
heater&wate
r chiller air
conditioner
102