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154
* Se
e “
O
u
tdoor
un
it te
mper
at
ur
e
se
nso
r c
ha
rac
ter
isti
cs
” on
“9
-9
. S
ens
or
c
har
ac
ter
is
tic
s”
.
Che
ck
co
de
Che
ck
c
ode n
ame
Caus
e
C
hec
k c
ode
Chec
k c
od
e nam
e
C
au
se
Dis
ch
arg
e
te
mp
T
D
1
er
ro
r
1
. Se
rv
ic
e v
al
ve o
f out
door
un
it c
lo
sed
2
. O
utdoo
r P
M
V
er
ro
r
3.
T
D
s
e
ns
or
e
rr
or
4
. Refr
ig
er
ant s
hor
tag
e, c
log
gin
g of r
efr
iger
ant
pipi
ng
5
. 4-
way
va
lv
e er
ro
r
6
. SV
4 c
irc
u
it l
eak
age
, mi
si
nst
all
ati
on
Is
o
utdoo
r P
M
V
nor
mal
?
1. Conne
ctor
c
onn
ect
ion
2. W
iri
n
g
3. Co
il
4. V
alv
e b
ody
5. O
utd
oor I/F P
.C. boa
rd
Ar
e ser
vic
e
val
ve
of ga
s a
nd l
iqu
id
si
de
s fu
lly op
ened
?
Ar
e
char
ac
ter
isti
cs
of
T
D
1 s
ens
or
r
esi
st
an
ce
no
rm
al?
Does
d
is
ch
ar
ged r
efr
iger
ant
gas
le
ak
to s
uct
ion
si
de
th
ro
ugh 4-
way
va
lv
e?
SV
4 ci
rc
ui
t
1
. Ar
e S
V
4
1, SV
42
and
S
V
43
va
lv
e c
oil
s
in
st
al
le
d co
rr
ec
tly
?
2.
Is
SV4
1 c
irc
u
it s
eal
ed
co
rr
ect
ly
(
n
o le
ak
age)
?
Refr
ig
er
ant s
hor
tag
e,
cl
ogg
ing
, pi
pe br
ea
kag
e
C
h
ec
k 4
-w
ay va
lv
e.
Co
rr
ec
t wi
ring
Cor
re
ct
ins
tal
la
tion
of v
al
ve
co
il.
Rep
lac
e S
V
41
va
lv
e.
O
pen
ser
vic
e v
alv
e fu
lly.
(C
hec
k th
er
e is
no
pip
e br
eak
ag
e, and
then
r
ech
ar
g
e the
r
efr
iger
an
t.)
Er
ro
r con
cer
ni
ng
h
igh
-p
re
ss
ur
e
SW
1
. Hig
h-
p
re
ss
ur
e S
W
er
ro
r
2.
S
e
rv
ic
e va
lv
e cl
os
ed
3.
P
d
s
ens
or
er
ro
r
4
. Indo
or
/outd
oor
fan
er
ro
r
5
. Indo
or
/outd
oor
PM
V c
hok
e
6
. Indo
or
/outd
oor
hea
t ex
cha
nger
c
log
gin
g, ai
r sho
rt
ci
rcu
it
7.
S
V
2 ci
rc
ui
t er
ro
r
8.
S
V
4 ci
rc
ui
t er
ro
r
9.
S
V
5 ci
rc
ui
t er
ro
r
1
0. Di
sc
har
ge l
in
e c
hec
k v
al
ve
mal
func
tio
n
1
1. Refr
iger
ant
ove
rc
har
ge
No
te
) Hi
g
h-p
re
ss
ur
e SW
is
nor
mal
ly
c
los
ed.
(B
co
ntac
t)
Does
hi
gh-
pr
es
su
re
SW
op
er
ate?
A
re
pa
rt
s of
h
igh
-
pr
ess
ur
e S
W
n
or
m
al
?
Sub
-c
ode
:
0
1: Com
pr
es
sor
1,
02: Co
mpr
es
sor
2
, 03: C
ompr
es
so
r 3
Cool
in
g
➝
To
(B)
Heat
ing
➝
To
(C)
Rep
lac
e th
e hi
ghp
re
ss
ur
e
sens
or
.
Reset
power s
uppl
y,
and st
art
a t
est
operati
on
co
rresponde
d to the
season.
A
re ch
ar
act
er
is
tic
s o
f
hi
gh-
pr
es
sur
e sen
sor
no
rm
al
?
Does
co
oli
ng o
utdo
or
fan no
rm
all
y o
per
ate?
Repai
r faul
ty
p
ar
ts.
Re
pai
r o
utdoo
r P
M
V
.
El
imi
nate
the
inte
rf
ere
nce
.
Ch
eck
A
3-
IPDU P
.C. bo
ar
d.
Fa
ilu
re
➝
Repl
ac
e
Is
outdo
or
PM
V no
rm
al?
1
. Conn
ec
tor
co
nnec
tio
n
2. Ca
bli
ng
3.
C
oil
4.
Val
ve
bod
y
5
. Ou
tdoo
r I/
F
P.C. b
oar
d
Is
ther
e a
ny
in
ter
fer
enc
e of
heat
-
ex
ch
angi
ng o
f outd
oor
uni
t?
1. He
at ex
chang
er
cl
oggi
ng
2. A
ir s
hor
t c
irc
u
it
Is
ser
vic
e v
alv
e fu
lly
open
ed?
(B
) C
ooli
ng
oper
ati
on
Is
the
re
any
c
rac
k or
co
mi
ng-
off o
f fan?
Is
c
irc
uit
ca
b
lin
g
no
rm
al?
Co
nnec
tor
s: PM
V1:
CN300,
PM
V2
: C
N
301
, PM
V
4
: C
N
30
3
C
hec
k p
ar
ts.
Fa
ilu
re
➝
Rep
lac
e.
Che
ck
and
co
rr
ec
t
cabl
ing
.
Ope
n s
er
vi
ce
val
ve
full
y.
A
re
in
door
un
its
of a
di
ffer
ent r
ef
riger
ant
line
co
n
nec
ted?
(C
h
eck
it
us
ing
the m
is
w
irin
g ch
ec
k
func
tio
n of th
e ou
tdoor
un
it.)
Con
nec
tors
: P
M
V
1: CN30
0, P
M
V2
: CN301
, PM
V4:
CN303
Repai
r outd
oor
PM
V.
Re
pla
ce T
D
1
se
nso
r.
Conne
ctor
c
onne
cti
on, fa
n
IPDU, f
an mo
tor, wiri
ng
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