-
269
-
LED1 (Red) Check
Flashing 1 time:
Current cut (Po
wer transistor o
v
ercurrent)
•
Short circuit in compressor wiring.
•
In
v
erter PCB f
ailure
•
Po
wer transistor f
ailure
•
Compressor motor neutral wire coming of
f ???
Flashing 2 times:
Po
wer transistor o
v
erheating
•
F
astening of po
wer transistor cooling f
ins
(tightening of scre
ws, silicone application) insuf
ficient.
•
Po
wer transistor sensor f
aulty
Flashing 3 times:
Compressor rotor lock
•
Compressor f
ailure
•
In
v
erter PCB f
ailure
Flashing 4 times:
Compressor start is f
aulty
•
Compressor f
ailure
•
In
v
erter PCB f
ailure
•
Po
wer transistor f
ailure
Flashing 5 times:
Magnetic Protection ??
•
Compressor wiring short circuit
•
In
v
erter PCB f
ailure
•
Po
wer transistor f
ailure
•
Compressor motor neutral wire coming of
f ???
6th Check:
In
v
erter PCB f
ailure
Lighting:
Communications errors between in
v
erter and outdoor unit.
•
Connector CNI1, 2, 3 disconnected or lines disconnected between connectors.
•
Outdoor unit control PCB f
aulty
•
In
v
erter PCB f
aulty
.
For communications, if you check at connector CNI1,
the values are as shown in the following table.
F
(10A)
0
20
40
60
80
100
120
140
160
180
200
0
20
40
60
80
100
120
140
T
emper
ature-resistance char
acter
istics of
po
w
er tr
ansistor ther
mistor (Tho-IP)
T
emper
ature (˚C)
Thermistor resistance (k
Ω
)
L1i
L2i
L3i
Ni
L1o
AC
1
R5
+4
–6
AC
2
AC
3
L2o
L3o
No
CNW
CnW1
CNM
CT
CNA1
CNA2
CNO1
CNO2
CNR
PN
U
V
W
CNW2
CNF
AN1
CNF
AN2
LED2
(Red)
LED1
(Green)
LED1
(Red)
LED2
(Green)
L1
L2
L3
N
E
Noise filter
P
o
w
er tr
ansistor module
P
o
w
er tr
ansistor themistor
DM
52C
FMO1
FMO2
Red
White
Blue
CM
Control PCB
DC F
an
In
v
er
ter PCB
F1 (250V 3A)
F1 (250V
, 2A)
F2 (250V
, 4A)
Po
wer supply check:
Measure the po
wer supply L1,L2,L3
(It is normal if it is
A
C380/415V)
*
Fuse chec
k:There should be
contin
uity
.
Noise f
ilter check:
There should be continuity
.
There should be no shorts between phases.
Capacitor check:
Check for anomaly in appearance
such as damage, swelling, etc.
TB
TB
Blac
k
Blue
1
2
3
Red
Red
White
Blue
Red
White
Blue
Red
White
Blue
Blac
k
Y
ello
w
/Green
P2
P3
N2
CNI1
CNI3
CNIP
*
DC295 ~ 339V
DC Reactor contiuity
check: 55m
Ω
or less
Resistance check:
Resistance is measured
(15
Ω
)
LED1(Green) check:
If it flashes, the microcomputer
operates normaly
.
LED2 (Green)
If it is blinking, the microcomputer’
s
operation is normal.
If it is of
f, see page 250.
When the outdoor unit
fan motor is anomalous:
(Refer to page 280)
Po
wer transistor module check:
Check for b
urnout, open circuit or damage
(see page 287 for the check procedure).
Fuse check:
There should be continuity
.
If it is f
aulty
, replace the in
v
erter board.
–
+
–
+
Fluctuates between 4~5 V (analog tester)
Fluctuates between 8~12 V (analog tester)
12V
1
2
3
4
CNI1
Connector
Voltage
Models FDCV
A802,
1002HESAR
Outdoor unit check points
Cheek items with the *mark when the po
wer is ON.
Summary of Contents for FDCVA1002HESAR
Page 107: ... 106 60 17 150 b Wireless remote controller Unit mm ...
Page 119: ... 118 Model FDCVA1002HESAR Polar white ...
Page 133: ......
