143
es
ua
C
e
m
an
ed
oc
kc
eh
C
ed
oc
kc
eh
C
es
ua
C
e
m
an
ed
oc
kc
eh
C
ed
oc
kc
eh
C
es
ua
C
e
m
an
ed
oc
kc
eh
C
ed
oc
kc
eh
C
Interl
ock in ind
oor unit
fro
m ou
tside
A
bnorma
l i
nput
fr
o
m
the
outs
id
e
No
No
Ye
s
Ye
s
Is ou
tsi
d
e
de
vi
ce
co
nn
ec
ted
to
co
nn
ec
tor
CN80
?
D
o
es
ou
ts
id
e
d
e
vi
ce
co
rr
e
ct
ly o
pe
rat
e?
Che
ck
ca
use
of a
bnor
mal
in
put.
Chec
k o
uts
ide
dev
ic
e.
Fa
ilur
e
Re
plac
e
Chec
k i
ndo
or
P.C.
board.
Fa
ilur
e
Re
plac
e
O
th
e
r IP
D
U
er
ro
rs
1. O
utd
oor
uni
t po
wer err
or
2. Outd
oor I/F P
.C. boa
rd
err
o
r
Chec
k p
ower
v
olta
ge a
nd l
ine
.
Chec
k a
ux
ili
aty
noi
se, etc
.
Ye
s
No
Is
th
ere
an
y
trou
bl
e
of
o
utd
oor
un
it p
owe
r
su
pp
ly
?
Ind
oor fa
n moto
r
er
ror
1.
Wi
ring e
rror
2.
Chec
k
fan m
otor
Ye
s
Ye
s
Cor
rec
t ca
bli
ng c
irc
uit
for
the
co
nnec
tor
c
onne
cti
on.
Rep
lace fa
n mot
or.
Che
ck
in
door
P
.C. boa
rd
.
Fail
ur
e
Repl
ace
Is
th
ere
no
co
nn
ec
tion erro
r
or
di
sc
on
ne
ct
io
n
of
C
N
07
6
co
nn
ec
to
r?
Is
no
t t
h
er
e
lo
ck
o
f f
a
n
mo
to
r?
No
No
* For the
mod
els
equ
ipp
ed
wi
th A
C
fan
motor o
nly
* S
ee
“O
ut
do
or
un
it te
mp
er
at
ur
e
se
ns
o
r
cha
ra
cteristics” on
“9-7.
Se
nsor ch
aract
eristics”
.
es
ua
C
e
m
an
ed
oc
kc
eh
C
ed
oc
kc
eh
C
Di
scha
rge te
mp TD err
o
r
1.
Ser
vic
e v
alv
e of
outd
oor
uni
t c
los
ed
2.
Ou
tdoor
P
M
V
err
or
3.
T
D
s
ens
or
er
ro
r
4.
R
ef
rig
e
ra
nt s
hor
tage
, cl
ogg
ing
of refrig
erant p
ip
in
g
5.
4-
way
val
ve
er
ro
r
6.
SV4 circuit leakage, misinstallation
Are s
erv
ic
e
va
lv
e
of
ga
s a
nd
li
qu
id
si
de
s f
ul
ly
op
ene
d
?
Is
o
ut
doo
r PM
V n
orm
al
?
1. Co
nn
ec
tor
co
nn
ec
tio
n
2. Wi
ring
3.
C
oi
l
4.
Val
ve
bo
dy
5.
O
u
td
oo
r I/F
P.C.
bo
ard
Are
ch
ara
cteri
sti
cs o
f
TD
1
se
ns
or
r
es
is
ta
n
ce
no
rm
al
?
Doe
s
di
sc
ha
rge
d
refri
g
er
an
t
ga
s le
ak
to
su
ct
ion
s
ide
th
ro
ug
h 4
-w
a
y
val
ve
?
No
No
No
Ye
s
Ye
s
Ye
s
No
Ye
s
C
onn
ecto
rs: PMV1
: CN30
0
Op
en s
er
vi
ce
va
lv
e ful
ly
.
Repa
ir out
door
P
MV.
Rep
lac
e TD s
ens
or.
Che
ck
4-way
v
a
lve.
Cor
re
ct
ins
tal
lati
on o
f va
lv
e co
il.
Replace SV4 valve.
Corre
ct
wirin
g
Are
in
doo
r u
nit
s
of a
di
ffer
ent
ref
rige
ran
t l
in
e
co
nn
ec
ted
?
No
Re
fr
igerant
sh
or
tage,
cl
o
ggi
ng, pipe
br
e
akage
(C
he
ck
th
e
re is
n
o p
ipe
br
ea
ka
g
e,
an
d the
n
rech
arge
th
e
ref
rig
eran
t.)
(C
h
ec
k i
t us
in
g
th
e m
is
w
iri
ng
c
hec
k f
unc
tio
n o
f t
he
ou
td
oo
r un
it.)
No
Yes
Yes
Check outdo
or I/F P.
C.
bo
ar
d.
Def
ec
t
Repl
ace
SV4 circuit
installed correctly?
correctly (no leakage)?
1.
Is SV4 valve coil
2
. Is SV4 circuit sealed
121
