– 44 –

Error mode detected by indoor unit

Operation of dia
g
nostic functio
n
C
he
c
k
code
E
03
E
04
E
08
L
03
L
L
08
L
09
L
30
P1
0
P12
P1
9
P
31
F
01
F
02
F1
0
F2
9
E1
0
E1
8
Cause of o
p
erati
o
n
No
c
omm
u
ni
ca
tion from r
e
mo
t
e
controller (includin
g
wireless) an
d
c
om
m
unication ada
p
te
r
The serial si
g
nal is not output fro
m
ou
t
doo
r
u
nit t
o
in
doo
r
u
nit
.
•
Defective serial sendin
g
circuit o
n
•
Defective serial receivin
g
circuit o
n
indoor P.
C
. boar
d
Du
p
licated indoor unit addres
s
Du
p
licated indoor master un
i
t
There is
g
roup wire in individual indoo
r
u
nit
.
Unset indoor
g
roup addre
s
s
Unset indoor capacit
y
A
b
no
r
mal in
p
ut of outside interl
o
ck
Float switch o
p
eratio
n
•
Float circuit
,
Disconnection
,
Comin
g
-off, Float switch contact erro
r
Indoor D
C
f
a
n
e
rr
o
r
4
-
w
a
y
v
a
lv
e s
y
stem err
o
r
•
Own unit sto
p
s while w
a
rn
in
g
is outpu
t
to oth
e
r in
d
oor
u
nit
s
.
Comin
g
-off, disconnection or short o
f
indoor heat exchan
g
er temp. senso
r
(TCJ
)
Comin
g
-off, disconnection or short o
f
indoor heat exchan
g
er temp. senso
r
(
TC
)
Comin
g
-off, disconnection or short o
f
indoor heat exchan
g
er temp. senso
r
(
TA
)
In
d
oor EEP
R
O
M err
o
r
•
EEPR
O
M access erro
r
C
ommunication error between indoo
r
M
CU
•
C
ommunication error between fa
n
drivin
g
MCU and main MC
U
Re
g
ular com
m
u
ni
ca
tion
e
rror
be
tw
een
in
d
oor
as
t
e
r
a
n
d
f
ollo
w
e
r
u
n
i
t
s
a
n
d
be
tw
ee
n m
a
in
a
n
d
sub
u
nit
s
S
tatus o
f
a
ir
co
n
d
iti
o
n
er
Sto
p
(A
utomatic reset
)
Sto
p
(A
utomatic reset
)
Sto
p
Sto
p
Sto
p
Sto
p
Sto
p
Sto
p
(A
utomatic reset
)
Sto
p
(F
o
ll
o
w
er unit
)
(A
utomatic reset
)
Sto
p
(A
utomatic reset
)
Sto
p
(A
utomatic reset
)
Sto
p
(A
utomatic reset
)
Sto
p
(A
utomatic reset
)
Sto
p
(A
utomatic reset
)
Sto
p
(A
utomatic reset
)
C
onditi
o
n
Dis
pl
a
y
ed
wh
en
e
rror i
s
de
t
ec
t
ed
Dis
pl
a
y
ed
wh
en
e
rror i
s
de
t
ec
t
ed
Dis
pl
a
y
ed
wh
en
e
rror i
s
de
t
ec
t
ed
Dis
pl
a
y
ed
wh
en
e
rror i
s
de
t
ec
t
ed
Dis
pl
a
y
ed
wh
en
e
rror i
s
de
t
ec
t
ed
Dis
pl
ay
ed
wh
en
e
rror i
s
de
t
ec
t
ed
Dis
pl
a
y
ed
wh
en
e
rr
o
r i
s
de
t
ec
t
ed
Dis
pl
ay
ed
wh
en
e
rror i
s
de
t
ec
t
ed
Dis
pl
a
y
ed
wh
en
e
rror i
s
de
t
ec
t
ed
Dis
pl
a
y
ed
wh
en
e
rror i
s
de
t
ec
t
ed
Dis
pl
a
y
ed
wh
en
e
rror
is
de
t
ec
t
ed
Dis
pl
a
y
ed
wh
en
e
rror i
s
de
t
ec
t
ed
Dis
pl
a
y
ed
wh
en
e
rror i
s
de
t
ec
t
ed
Dis
pl
a
y
ed
wh
en
e
rr
o
r i
s
de
t
ec
t
ed
Dis
pl
ay
ed
wh
en
e
rror i
s
de
t
ec
t
ed
J
ud
g
ment and measure
s
1. Check cables of remote controller and communication adapters.
•
Remote controller LCD displa
y
OFF (Disconnection
)
•
Central remote controller
[
97
]
check cod
e
s
s
•
Inter-unit wire check, correction of miswirin
g
Check outdoor P.C. board. Correct wirin
g
of P.C. board
.
2. When outdoor unit normall
y
operate
s
Check P.C. board (Indoor receivin
g
/ Outdoor sendin
g
)
.
1. Check whether remote controller connection
(
Grou
p
/Individual
)
was chan
g
ed or not after power supply turned o
n
(Finish of
g
roup construction/Address check)
.
* If
g
roup construction and address are not normal when th
e
power has been turned on, the mode automaticall
y
shifts t
o
address setup mode. (Resettin
g
of address
)
1.
Set indoor capacit
y
(CODE N
o
.
(
DN
)
= 11
)
1.
C
he
c
k
ou
t
s
i
de
de
vi
ces
.
2.
C
he
c
k in
d
oo
r
P.
C.
b
o
a
r
d.
1. Trouble of drain
p
um
p
2. Clo
gg
in
g
of drain pum
p
3
.
C
heck float switch
.
4.
C
heck indoor P.
C
. board
.
1.
P
o
s
ition
de
t
ec
tion
e
rro
r
2.
Ov
er-current
p
rotecti
v
e
c
ir
cu
it
o
f in
doo
r
f
a
n
d
rivin
g
unit operated
.
3
. Indoor fan locked
.
4. Check indoor P.C. board
.
1. Check 4-wa
y
valve
.
2. Check 2-wa
y
valve and check valve
.
3. Check indoor heat exchan
g
er (TC/TCJ)
.
4.
C
heck indoor P.
C
. board
.
1.
J
ud
g
ef
o
ll
o
w
e
r unit while header unit is
[
E03
]
,
[
L03
]
,
[
L07
]
or
[
L08
].
2.
C
he
c
k in
d
oo
r
P.
C.
b
o
a
r
d.
1.
C
he
c
k in
d
oor h
ea
t
e
xchan
g
er te
m
p.
sensor
(
TCJ
).
2.
C
he
c
k in
d
oo
r
P.
C.
b
o
a
r
d.
1.
C
he
c
k in
d
oor h
ea
t
e
xchan
g
er te
m
p.
sensor
(
TC
)
.
2.
C
he
c
k
i
n
d
oo
r
P.
C.
b
o
a
r
d.
1.
C
he
c
k in
d
oor h
ea
t
e
xchan
g
er tem
p
.
sensor (T
A)
T
T
.
2.
C
he
c
k in
d
oo
r
P.
C.
b
o
a
r
d.
1.
C
he
c
k in
d
oor EEP
R
O
M
.
(includin
g
so
c
k
e
t in
ser
tion
)
2.
C
he
c
k in
door
P.
C.
boa
r
d.
1.
C
he
c
k
i
n
d
oo
r
P.
C.
b
o
a
r
d.
1. Check remote controller wirin
g.
2. Check indoor power supply wirin
g.
3
.
C
heck indoor P.
C
. board
.
Sto
p
Case thermostat o
p
eratio
n
* Abnormal overheat of com
p
resso
r
1.
C
heck case thermostat and connector
.
2. Check
g
as leak, rechar
ge
3. Check full o
p
en of service valve
.
4. Check PMV
(
Pulse Motor Valve
).
5.
C
heck broken
p
i
p
e
.
Dis
pl
a
y
ed
wh
en
e
rror i
s
de
t
ec
t
ed
After heatin
g
operation has started
,
indoor heat exchan
g
ers temp. i
s
d
own
.