129
9-5. Diagnosis procedure for each check code
Check cod
e
Che
ck cod
e n
a
me
Cau
se
Si
gnal t
ransmission err
or on th
e
re
mote
con
tro
ller
Unabl
e to
se
nd s
ign
als
to
indo
or
uni
ts
* The
che
ck cod
e i
s
not
i
n
di
ca
ted
on
th
e ce
ntr
a
l
con
tro
l de
vi
ce o
r
the
7-
se
gm
en
t i
n
d
ica
ti
on
on
th
e o
u
td
oo
r
un
it
.
T
he
co
mmun
ic
ati
on wi
ri
ng
be
tween the
re
mo
te
c
ontr
ol
ler
a
nd i
ndoo
r u
nits
is
c
onne
cted
pr
oper
ly
.
Conne
ct th
e wi
ri
ng p
ro
per
ly
.
T
he tr
ans
mis
s
ion
c
ir
c
uit i
n
the r
e
mote
co
ntr
oll
er
mal
func
ti
ons
.
➝
Rep
lac
e th
e r
e
mot
e co
ntr
oll
er
.
No
Yes
C
h
eck c
o
de
Che
ck co
de
na
m
e
Ca
us
e
Communi
ca
tio
n e
rror
be
twee
n
the
ind
oor unit
and remo
te
cont
rol
ler
(de
tect
ed on t
he indo
or unit
)
No
com
mun
ic
atio
n fr
om t
he r
emo
te c
ontr
ol
ler
/
c
o
mm
uni
cat
ion adap
ter
The
error is de
te
cted
whe
n th
e in
do
or un
it can
no
t rece
ive th
e
si
g
n
a
l
from th
e wired
re
mote
con
troller.
Ch
e
ck
th
e co
mmu
nica
ti
o
n
wir
ing
fr
om
t
h
e re
mo
te
con
tr
o
lle
r A a
n
d
B.
Th
e ch
eck co
de
[E
0
3
] is no
t
in
d
icat
e
d o
n
t
h
e
re
mo
te
con
trol
ler
a
s
it
s co
mm
un
icat
io
n
i
s
d
o
w
n
.
H
o
w
e
ve
r,
th
e co
de
is
i
n
di
ca
ted
on
th
e co
mp
liant
m
ana
ge
r
of TC
C
-LIN
K
.
Check cod
e
Che
ck cod
e n
a
me
Cau
se
Is
th
e
in
te
r-un
it wire
of rem
ote
c
o
n
tro
lle
rs
(A /
B)
nor
ma
l?
No
Ye
s
Corr
e
c
t i
n
ter-uni
t c
able
of
Conne
ct t
he wi
ri
ng p
ro
per
ly
.
re
mote con
tro
ller.
Cor
re
ct c
onn
ec
tor
con
nec
tion
and
ch
eck
c
ir
c
u
it wi
ri
ng.
Is
the
re
no
di
sc
on
ne
ct
io
n
or
co
nne
ct
or c
o
n
ta
c
t
erro
r on
h
a
rn
es
s
ou
t of
ter
mi
na
l
bl
oc
k o
f i
n
d
o
o
r
un
it
?
Ye
s
No
No
Ye
s
No
Ye
s
No
Ye
s
Ye
s
No
Is
a g
rou
p c
o
n
trol
op
er
a
tio
n?
Is
p
o
wer of eac
h ind
oo
r
un
it turn
ed
on
?
Is
p
o
w
e
r ap
pl
ie
d
to
re
m
o
te
co
ntr
oll
er?
AB term
in
al
s:
App
rox
.
D
C
18 V
Is
s
e
tu
p
of t
w
o
re
m
o
te
co
nt
roll
ers
wi
tho
ut h
ead
er re
m
o
te
co
ntro
ller?
Chec
k power
c
onne
cti
on
sta
tus
of
i
ndoor
uni
t. (
T
ur
n
on
power
a
gain
.)
Chec
k
ind
oor
P.C
. boar
d.
Defec
t
➝
Repl
ace
Chang
e one
to h
eader
/
other
to fol
lo
wer
. (
R
emote
co
ntr
oll
er
addr
es
s con
nec
tor
)
C
h
e
ck re
m
o
te
co
n
tro
lle
r P.
C
.
boa
rd
.
Defec
t
➝
Repl
ace
Co
mm
u
n
icat
ion
erro
r be
twee
n t
he
indoor
u
n
it
an
d r
e
mot
e
co
ntr
oller
(det
ecte
d on t
he r
e
mot
e cont
rolle
r)
1
. Remo
te c
ontrol
ler i
n
ter-uni
t wire e
rror
2
. Indo
or
power
e
rr
o
r
3
. Indo
or
P.C.
boar
d e
rr
o
r
4
. Remo
te c
ontr
ol
ler
ad
dr
ess
s
e
tup
er
ro
r
5
. Remo
te c
ontr
ol
ler
P
.C. bo
ar
d
er
ro
r
107
