130
For d
e
ta
ils,
refe
r
to “8
-5
. Trou
bleshoo
ting
in te
st o
p
er
at
ion
”.
Ch
ec
k c
ode
Ch
ec
k c
od
e
na
m
e
Cau
se
Is
th
e
re
no
mi
sw
irin
g /
di
sc
on
ne
cti
o
n on
co
mm
un
ic
at
ion
li
ne
be
twe
en ind
oo
r
an
d
ou
td
o
or
?
Ye
s
S
ub-
code:
No. of
ind
oor uni
ts whic
h receiv
ed
s
ig
na
ls
no
rm
al
ly
Decreased nu
mber
of i
ndoo
r u
nits
1. Com
m
uni
ca
tio
n lin
es
(
U
1, U2)
co
nnec
tio
n er
ro
r be
tween
indo
or and
outdo
or
2.
C
om
m
u
ni
ca
tion
conn
ect
or
's
c
onne
cti
on
er
ror
on
ind
oor
unit
, err
o
r
on P
.C. boa
rd
3. Co
mmun
ic
atio
n co
nnec
tor
's c
onn
ect
ion
e
rr
or
on ou
tdoo
r
unit
, er
ro
r
on I/F b
oard
4.
P
owe
r s
up
p
ly
of i
ndoo
r
unit
(Is
po
wer
tur
ned
on?)
No
Is
c
on
ne
cti
on
of CN40 co
nn
ec
tor
o
n in
do
or
P
.C
. bo
a
rd
no
rm
al
?
No
Ye
s
No
Is
co
nn
ec
tio
n o
f CN0
1
co
nn
ec
to
r on
ou
tdo
or
I/F
P.C.
bo
ard
no
rm
al?
Ye
s
Is
p
o
wer of ind
o
or
un
it
tu
rne
d
o
n
?
No
Ye
s
Ye
s
D
id a
po
w
er
f
ai
lu
re
oc
cu
r?
No
Is
th
ere
no
no
is
e,
etc
?
Yes
No
Chec
k i
ndo
or
P.C.
board.
Defec
t
Re
pla
ce
Cor
rec
t c
omm
uni
cat
ion
line.
Cor
rec
t wir
ing or c
onne
cto
r.
T
u
rn
on p
ower of i
ndo
or
unit.
Cl
ear
the
che
ck
co
de.
Ch
eck
no
is
e, etc
, an
d el
im
inat
e it
if
an
y.
(NOTE)
1.
W
hen
sign
al is n
o
t sent
fo
r a
ce
rt
ain p
e
riod
fr
om
th
e in
do
or
un
it which
ha
s
use
d
to se
nd
signals no
rm
al
ly,
[E0
6]
is displayed
.
No
Wa
s powe
r
tu
rn
ed
o
n
in
ord
e
r
of i
n
do
or
un
it
ou
tdo
o
r u
n
it?
Chec
k cod
e
Ch
e
ck c
o
de
na
me
Indoor /
Outdoo
r commu
nication
circuit
error
(Detected at
in
door side)
Cause
1. P
ower of
outdo
or unit
was firstly turne
d on
2. Co
nnec
tio
n er
ro
r of c
omm
uni
cati
on
lin
e
be
tween
indo
or
a
nd ou
tdoor
3. E
nd te
rm
ina
l r
es
is
tanc
e s
etup
er
ro
r
on c
ommu
nic
ati
on
b
etween
ind
oor and
outd
oor
4. A
ddres
s s
etu
p err
or
Yes
Is
c
o
nn
ec
tion
(U1 /
U2
te
rmi
na
ls
) of
in
do
or /
ou
tdo
or i
n
te
r-u
n
it wir
e
no
rm
al
?
No
Ye
s
No
Is co
nn
ec
to
r
co
nn
ec
tion
fr
om
U
1 /
U2
te
rm
in
al
s of ind
oor /
ou
td
oo
r
in
te
r-
un
it wi
re no
rm
al
?
Ye
s
No
Is
the
e
nd
term
in
al
re
si
st
anc
e
s
etu
p of ou
tdo
or
un
it nor
m
al
?
Ye
s
No
Is
ad
dr
e
ss
s
et
u
p co
rr
ec
t?
Ye
s
No
Is
po
w
er
ap
pli
e
d to
fu
se
(F
03
) on
in
do
or
P
.C
.
boa
rd?
Ye
s
Ye
s
Is
th
er
e
no
no
is
e,
e
tc
?
Chec
k i
ndo
or
P.C. b
oard.
Defec
t
Re
pla
ce
C
or
rec
t c
onn
ecto
r
con
nec
tion
.
T
u
rn
on p
ower aga
in
in o
rd
er
of
ind
oor unit
o
utdoo
r u
ni
t.
Co
rr
ect inter-unit
wire.
Chec
k n
ois
e, e
tc,
and
eli
m
in
ate i
t i
f any
Corr
ect th
e en
d terminal
re
si
stan
ce
se
tup.
Se
t up a
ddr
es
s a
gai
n.
Check connection of inter-unit wire
between indoor and outdoor
is correct, and then connect
communication line connector on
indoor P.C. board CN40 and
CN44.
No
Ɣ3DUWQXPEHUVVXFKDVFRQQHFWRUVDQGIXVHVPLJKWEHGLI
IHUHQW
GHSHQGLQJRQWKHPRGHO
In that case, please refer to the service manual of each indoor unit.
Ɣ3DUWQXPEHUVVXFKDVFRQQHFWRUVDQGIXVHVPLJKWEHGLI
IHUHQW
GHSHQGLQJRQWKHPRGHO
In that case, please refer to the service manual of each indoor unit
108