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Idiomas disponibles
Idiomas disponibles
13
Troubleshooting
In addition to the Code (DN) number on the remote control of an indoor unit, you can diagnose failure type of
an outdoor unit by checking the 7-segment display on the interface P.C. board.
Use the function for various checks.
Set every DIP switch to OFF after checking.
7-Segment display and check code
Rotary switch setting value
Indication
SW01
SW02
SW03
1
1
1
Outdoor unit check code
* If a check code has an auxiliary code, the display indicates the check code for three seconds and the auxiliary
code for one second alternately.
Check code (indicated on the 7-segment display on the outdoor unit)
Indicated when SW01 = [1], SW02 = [1], and SW03 = [1].
Check code
Indication on 7-segment display on the outdoor unit
Auxiliary code
E06
Number of indoor units which received normally
E
0
7
—
E
0
8
D
u
p
c i l
a
e t
d
n i
d
o
r o
a
d
d
e r
s s
e
s
01: Communication between indoor and outdoor units
E12
02: Communication between outdoor units
E
1
5
—
00: Capacity over
E16
01: Number of connected units
00: Header is not detected
E19
02: 2 or more header units
01: Other line outdoor connected
E20
02: Other line indoor connected
E
2
3
—
E
2
5
—
E26
Number of outdoor units which received normally
E
2
8
D
e
e t
c
e t
d
o
u
d t
o
r o
E31
Inverter quantity information
(*1)
E
3
1
8
0
F
0
4
—
F
0
5
—
01: TE1 sensor
F06
02: TE2 sensor
03: TE3 sensor
01: TL1 sensor
F07
02: TL2 sensor
03: TL3 sensor
F
0
8
—
67-EN
7 - segment
LED
[U.
.E r r ]
[
.
]
Display alternately every 2 seconds
Display
: Outdoor Unit No.(1~5)
contents
: Check code
: Sub code
Check code name
Decrease of number of indoor units
No indoor unit with a terminating resistor set
(TU2C-Link)
n I
d
o
o
/ r
o
u
d t
o
r o
c
o
m
m
u
n
c i
t a
o i
n
i c
c r
i u
t t
o r
u
b
e l
D
u
p
c i l
t a
o i
n
f o
n i
d
o
r o
a
d
d
e r
s s
e
. s
Automatic addressing start trouble
N
o
n i
d
o
r o
u
n
t i
d
r u
n i
g
a
u
o t
m
a
c i t
a
d
d
e r
s s
n i
g
Capacity over / number of connected indoor units
Number of header outdoor unit trouble
Other lines connected during automatic addressing
S
e
n
d
n i
g
e
r r
r o
b
e
w t
e
e
n
o
u
d t
o
r o
u
n
s t i
c
o
m
m
u
n
c i
t a
o i
n
D
u
p
c i l
a
e t
d
o f
o l l
w
r e
o
u
d t
o
r o
a
d
d
e r
s s
s
t e
u
p
Decrease of connected outdoor units
F
o
o l l
w
r e
o
u
d t
o
r o
u
i n
t t
o r
u
b
e l
Inverter communication trouble
C
o
m
m
u
n
c i
t a
o i
n
t
o r
u
b
e l
b
e
w t
e
e
n
M
C
U
a
n
d
s
u
b
M
C
U
T
D
1
s
e
n
s
o
t r
o r
u
b
e l
T
D
2
s
e
n
s
o
t r
o r
u
b
e l
TE1, TE2 or TE3 sensor trouble
TL1, TL2 or TL3 sensor trouble
T
O
s
e
n
s
o
t r
o r
u
b
e l
Check code
Indication on 7-segment display on the outdoor unit
Auxiliary code
01: TG1 sensor
F09
02: TG2 sensor
03: TG3 sensor
01: TS1 sensor
F12
03: TS3 sensor
04: TS3 sensor detached
1 : Compressor 1 side
F13
2 : Compressor 2 side
F
1
5
—
F
1
6
—
F
2
3
—
F
2
4
—
F
3
1
—
1 : Compressor 1 side
H01
2 : Compressor 2 side
1 : Compressor 1 side
H02
2 : Compressor 2 side
1 : Compressor 1 side
H03
2 : Compressor 2 side
H
0
5
—
H
0
6
—
H
0
7
—
01: TK1 sensor trouble
H08
02: TK2 sensor trouble
H
1
5
—
01: TK1 oil circuit trouble
H16
02: TK2 oil circuit trouble
1 : Compressor 1 side
H17
2 : Compressor 2 side
1 : Compressor 1 side
H28
2 : Compressor 2 side
L02
Detected indoor unit address
L
0
4
—
L
0
6
N
u
m
b
r e
f o
p
i r
r o
n i
d
o
r o
u
n
s t i
L
0
8
—
L
1
0
—
L
1
7
—
L
2
8
—
00 : when there are many inverter P.C. board.
L29
: Inverter number information
L
3
0
D
e
e t
c
e t
d
n i
d
o
r o
u
n
t i
a
d
d
e r
s s
L
3
1
—
P
0
3
—
01 : Compressor 1 side
P04
02 : Compressor 2 side
– 34 –
Check code name
TG1,TG2 or TG3 sensor trouble
TS1 or TS3 sensor trouble
TH (Heat sink) sensor trouble
Outdoor Temperature sensor miswiring (TE1, TL1)
O
u
d t
o
r o
p
e r
s s
u
e r
s
e
n
s
r o
m
s i
w
r i
n i
P
s
s
e
n
s
o
t r
o r
u
b
e l
P
d
s
e
n
s
o
t r
o r
u
b
e l
O
u
d t
o
r o
E
E
P
R
O
M
t
o r
u
b
e l
Compressor breaking down
Compressor trouble (Locked)
Current detection circuit system trouble
T
D
1
s
e
n
s
r o
m
s i
w
r i
n i
g
L
o
w
p
e r
s s
u
e r
p
o r
e t
c
v i t
e
o
p
r e
t a
o i
n
O
l i
e l
v
l e
d
o
w
n
d
e
e t
t c
o i
n
Temperature sensor trouble for oil level detection
T
D
2
s
e
n
s
r o
m
s i
w
r i
n i
g
Oil level detector circuit system trouble
Compressor trouble (step out)
Compressor motor winding trouble
Model mismatch of indoor and outdoor unit
O
u
d t
o
r o
s
s y
e t
m
a
d
d
e r
s s
d
u
p
c i l
t a
o i
D
u
p
c i l
t a
o i
n
f o
n i
d
o
r o
u
n
s t i
i w
h t
p
i r
n I
d
o
r o
u
n
t i
g
o r
u
p
a /
d
d
e r
s s
u
n
s
t e
O
u
d t
o
r o
u
n
t i
c
a
p
a
c
y t i
u
n
s
e
. t
n I
c
o
n
s
s i
e t
t n
m
o
d
e
s l
f o
o
u
d t
o
r o
u
n
O
u
d t
o
r o
u
n
s t i
m
s i
m
a
c t
h
Inverter quantity trouble
(*1)
E
x
e t
n r
a
i l
t n
r e
o l
k c
f o
n i
d
o
r o
u
n
t i
O
h t
r e
c
o
m
p
e r
s s
o
t r
o r
u
b
e l
s
i D
c s
h
a
g r
e
e t
m
p
e
a r
u t
e r
T
D
1
t
o r
u
b
High-pressure SW system operation
g
P (
, d
P
) s
n
r o
y t i
s t i
EN
e l
EN
ID
68-EN
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