6
6
.
.
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
A
A
S
S
-
-
1
1
8
8
U
U
R
R
4
4
S
S
T
T
V
V
U
U
H
H
1
1
22
Yes
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
faulty, replace it
Error code 6
Voltage of power supply is abnormal
Is the voltage of power
supply normal of AC
160~264V?
Yes
Normal
protection
No
Outdoor IPM board fault,
replace it.
Error code 34
Indoor Coil sensor
trouble
Error code 33
Indoor temperature
sensor
Does the resistance
of thermistor have
the characteristics
Does the unit exit hot
protector
Replace the
thermistor
No
Replace the
indoor pcb board
Take out from
CN09 ,Measure the
resistance of thermistor
Take out from
CN09 ,Meaure the
resistance of thermistor
Error code 14
Outdoor temperature
sensor trouble
Error code 1
Outdoor coil 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 5-2 (SENSOR
PARAMETER)
Replace the thermistor
No
Yes
Replace the
outdoor board
Summary of Contents for AS-18UR4STVUH1
Page 1: ...AS 18UR4STVUH1...
