– 20 –
Check method
On the wired remote controller, central control remote controller and the interface P.C. board of the outdoor unit (I/F), a check display LCD (Remote controller) or 7-segment display (on the outdoor interface P.C. board) to display the operation
is provided. Therefore the operation status can be known. Using this self-diagnosis function, a trouble or position with error of the air conditioner can be found as shown in the following table.
Check code list
The following list shows each check code. Find the check contents from the list according to part to be checked.
In case of check from indoor remote controller: See “Wired remote controller display” in the list.
In case of check from outdoor unit: See “Outdoor unit 7-segment display” in the list.
:
Lighting, :
Flashing, :
Goes
off
IPDU: Intelligent Power Drive Unit
ALT: Flashing is alternately when there are two flashing LED.
SIM: Simultaneous flashing when there are two flashing LED.
r
e
ll
o
r
t
n
o
c
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t
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m
e
r
s
s
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l
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r
i
W
e
d
o
c
k
c
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C
e
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v
e
d
g
n
i
g
d
u
J
e
m
a
n
e
d
o
c
k
c
e
h
C
Wired remote
controller display
Outdoor unit 7-segment display
Sensor block display of receiving unit
h
s
a
l
F
y
d
a
e
R
r
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m
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T
n
o
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t
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r
e
p
O
e
d
o
c
y
r
a
il
i
x
u
A
—
—
1
0
E
Communication error between indoor unit and remote controller (Detected at
remote controller side)
Remote controller
r
e
ll
o
r
t
n
o
c
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t
o
m
e
R
r
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a
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ll
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t
n
o
c
e
t
o
m
e
R
—
—
2
0
E
—
—
3
0
E
Communication error between indoor unit and remote controller (Detected at
indoor unit side)
Indoor unit
—
—
4
0
E
Communication circuit error between indoor/outdoor unit (Detected at indoor
unit side)
Indoor unit
E06
E06
No. of indoor units in which sensor has been normally received
F
/I
s
ti
n
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o
o
d
n
i
f
o
.
o
N
f
o
e
s
a
e
r
c
e
D
—
7
0
E
—
Communication circuit error between indoor / outdoor unit (Detected at
outdoor unit side)
I/F
F
/I
ti
n
u
r
o
o
d
n
I
s
e
s
s
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t
a
c
il
p
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D
8
0
E
8
0
E
r
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ll
o
r
t
n
o
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t
o
m
e
R
s
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t
o
m
e
r
r
e
t
s
a
m
d
e
t
a
c
il
p
u
D
—
—
9
0
E
ti
n
u
r
o
o
d
n
I
C
M
t
i
n
u
r
o
o
d
n
i
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e
w
t
e
b
r
o
r
r
e
n
o
it
a
c
i
n
u
m
m
o
C
—
—
0
1
E
E12
E12
01:Indoor/Outdoor units communication
02:Outdoor/Outdoor units communication
F
/I
r
o
r
r
e
t
r
a
t
s
s
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d
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c
it
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A
F
/I
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t
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a
g
n
ir
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d
ti
n
u
r
o
o
d
n
i
o
N
—
5
1
E
5
1
E
E16
E16
00:Capacity over
01 ~:No. of connected units
F
/I
s
ti
n
u
r
o
o
d
n
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d
e
t
c
e
n
n
o
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f
o
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o
N
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p
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o
it
a
c
i
n
u
m
m
o
C
—
—
8
1
E
and follower units Indoor unit
Indoor unit
E19
E19
00:No header
02:Two or more header units
F
/I
r
o
r
r
e
y
ti
t
n
a
u
q
s
ti
n
u
r
e
d
a
e
h
r
o
o
d
t
u
O
E20
E20
01:Outdoor unit of other line connected
02:Indoor unit of other line connected
F
/I
s
s
e
r
d
d
a
c
it
a
m
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t
u
a
g
n
ir
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n
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il
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h
t
O
E21
E21
02:No header unit
00:Multiple number of header units
t
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E
F
/I
s
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F
/I
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o
it
c
u
d
e
R
—
2
2
E
2
2
E
—
3
2
E
3
2
E
Sending error in communication between outdoor units
Error in number of heat storage units (trouble with reception)
I/F
F
/I
s
e
s
s
e
r
d
d
a
r
o
o
d
t
u
o
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e
w
o
ll
o
f
d
e
t
a
c
il
p
u
D
—
5
2
E
5
2
E
E26
E26
No. of outdoor units which received signal normally
F
/I
s
ti
n
u
r
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o
d
t
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o
d
e
t
c
e
n
n
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f
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.
o
N
f
o
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s
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e
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c
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D
F
/I
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o
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e
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d
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d
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t
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D
8
2
E
8
2
E
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/I
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)
1
*
(
U
D
P
I
f
o
r
e
b
m
u
N
1
3
E
1
3
E
39-EN
40-EN
In case of check from indoor unit with a wireless remote controller: See “Sensor block display of receiving unit” in the list.
1117065599 (01)_EN.indd 21
1117065599 (01)_EN.indd 21
01/07/15 3:42 PM
01/07/15 3:42 PM
