Ballu BSGI 09, Service Manual

Page: 32 / 51

7
7
.
.
T
T
R
R
O
O
U
U
B
B
L
L
E
E
S
S
H
H
O
O
O
O
T
T
I
I
N
N
G
G
Yes
Error code 34
Indoor Coil sensor
trouble
Error code 33
Indoor temperature
sensor
Replace the
indoor pcb board
Does the resistance
of thermistor have
the characteristics
on part 6-3
Take out from
CN6 ,Measure the
resistance of thermistor
Does the unit exit hot
protector
Replace the
thermistor
Take out from
CN3 ,Meaure the
resistance of thermistor No
Error code 14
Outdoor temperature
sensor trouble
Measure resistance
of the sensor of
CN15(Yellow)
Measure resistance
of the sensor of
CN14(Black)
Does the resistance
of thermistor have
the characteristic on
part 6-3 (SENSOR
PARAMETER)
Yes
No
Replace the thermistor
Outdoor coil sensor
trouble
Error code 1
Replace the
outdoor board
Voltage of power supply is abnormal
Error code 6 Error code 2, 13
Compressor over heat
protection
Is the surface of
compressor very hot?
No
Normal protecton
Yes
Is the resistance of
compressor discharge
sensor correct?
Replace it
No
Yes
Outdoor control board
No
Normal
protection
Is the voltage of power
supply normal of AC
198~253V?
Yes
faulty, replace it
Outdoor IPM board fault,
replace it.
29
BSGI 09(12)