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11
Troubleshooting
In addition to the CODE No. on the remote controller 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
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
s e
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 nothing
E19
02: 2 or more header units
01: Other line indoor 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
(*1)
E31
IPDU quantity information
F
0
4
—
F
0
5
—
01: TE1 sensor
F06
02: TE2 sensor
F
0
7
—
F
0
8
—
F
1
2
—
01: Compressor 1
F13
02: Compressor 2
03: Compressor 3
61-EN
1114208701-1 EN PT ES.indb 31
1114208701-1 EN PT ES.indb 31
D600
D601 D602 D603 D604
Indication
LED
A
B
Outdoor unit number
A
(U
to U
)
1
4
B
Check code display*
Check code name
Decrease of number of indoor units
n I
d
o
r o
o /
u
d t
o
r o
c
o
m
m
u
n
c i
t a
o i
n
i c
c r
u
t i
e
r r
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 error
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
Capacity over / number of connected indoor units
Number of header outdoor unit error
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
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
Decrease of connected outdoor units
F
o
o l l
w
r e
o
u
d t
o
r o
u
n
t i
e
r r
r o
IPDU communication error
T
D
1
s
e
n
s
r o
e
r r
r o
T
D
2
s
e
n
s
r o
e
r r
r o
TE1 sensor error
TE2 sensor error
T
L
s
e
n
s
r o
e
r r
r o
T
O
s
e
n
s
r o
e
r r
r o
T
S
1
s
e
n
s
r o
e
r r
r o
TH (Heat sink) sensor error
– 31 –
Indication on 7-segment display on the outdoor unit
F
1
5
F
1
6
F
2
2
F
2
3
F
2
4
F
3
1
01: Compressor 1
H01
02: Compressor 2
03: Compressor 3
01: Compressor 1
H02
02: Compressor 2
03: Compressor 3
01: Compressor 1
H03
02: Compressor 2
03: Compressor 3
H
0
5
H
0
6
H
0
7
01: TK1 sensor error
02: TK2 sensor error
H08
03: TK3 sensor error
04: TK4 sensor error
r o
05: TK5 sensor error
H
1
5
01: TK1 oil circuit error
02: TK2 oil circuit error
n i
g
H16
03: TK3 oil circuit error
04: TK4 oil circuit error
05: TK5 oil circuit error
H
2
5
L
0
4
L
0
6
N
u
m
b
r e
f o
p
i r
L
0
8
m
u
n
c i
t a
o i
n
L
1
0
u
p
L
1
7
L
2
8
L29
IPDU number information
L
3
0
D
e
e t
c
e t
d
n i
d
o
L
3
1
P
0
3
01: Compressor 1
P04
02: Compressor 2
03: Compressor 3
0
: 0
01: Compressor 1
P05
02: Compressor 2
03: Compressor 3
Check code
Check code name
Auxiliary code
Outdoor temp. sensor miswiring
—
Outdoor pressure sensor miswiring (TE1, TL)
Outdoor temp. sensor miswiring
—
Outdoor pressure sensor miswiring (Pd, Ps)
—
T
D
3
s
e
n
s
r o
e
r r
r o
—
P
s
s
e
n
s
r o
e
r r
r o
—
P
d
s
e
n
s
r o
e
r r
r o
—
O
u
d t
o
r o
E
E
P
R
O
M
Compressor breaking down
Compressor error (Locked)
Current detection circuit error
—
T
D
1
s
e
n
s
r o
m
s i
w
r i
—
L
o
w
p
e r
s s
u
e r
p
o r
e t
—
O
l i
e l
v
l e
d
o
w
n
d
e
e t
Temperature sensor error for oil level
—
T
D
2
s
e
n
s
r o
m
s i
w
r i
Oil level detector circuit error
—
T
D
3
s
e
n
s
r o
m
s i
w
r i
—
O
u
d t
o
r o
s
s y
e t
m
a
d
r o
n i
d
o
r o
u
n
s t i
D
u
p
c i l
t a
o i
n
f o
n i
d
o
—
n I
d
o
r o
u
n
t i
g
o r
u
p
a /
—
O
u
d t
o
r o
u
n
t i
c
a
p
a
—
M
s i
m
a
c t
h
f o
h t
e
o
u
—
O
u
d t
o
r o
c
o
n
n
e
c
e t
d
(*1)
IPDU quantity error
r o
u
n
t i
a
d
d
e r
s s
E
xternal interlock of indoor unit
—
O
h t
r e
c
o
m
p
e r
s s
r o
—
i D
c s
h
a
g r
e
e t
m
p
e
a r
High-pressure SW system operation
P
h
a
s
e
m
i
s s
n i
g
p /
o
w
Inverter DC voltage error (on compressor)
e
r r
r o
n i
g
c
v i t
e
o
p
r e
t a
o i
n
t c
o i
n
n i
g
n i
g
d
e r
s s
d
u
p
c i l
t a
o i
n
r o
u
n
s t i
i w
h t
p
i r
r o
y t i
d
d
e r
s s
u
n
s
t e
c
y t i
u
n
s
e
. t
d t
o
r o
u
n
t i
m
o
d
l e
q
u
a
t n
y t i
o
v
r e
r e
o r
s r
u t
e r
T
D
1
e
r r
r o
r e
a f
u l i
e r
d
e
e t
t c
o i
n
62-EN
02/27/14 1:39 PM
02/27/14 1:39 PM
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