Sharp AE-X3M18JR, Service Manual, Page: 18 / 40

3 – 3
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-0
-1 -2 -3
-1 -2 -3
-1 -2 -5 -4
-1 -2 -3
Sta
tus
of
ind
oor/out
doo
r
un
it
s
Ind
ica
ti
on
by
LED1
on
o
utd
oor
unit
*2
Indication
on
indo
or
unit
C
o
nten
to
fd
ia
gnosis
In
s
p
ection
loc
a
tion
/m
etho
d
Reme
dy
F
loo
r
/
ceil
ing
Wall
(P
anel)
Li
ghting
p
atter
n
a
t
the
ti
me
of
ti
mer
lamp
li
ghting
M
ain
Sub
fo
r
5
second
s
Ma
in
catego
ry
Sub
categ
ory
Indoo
r/o
utdo
or
units
in
operat
ion
Nor
m
al
flashing
N
orma
l
_
_ _ _ _
Indo
or
/outd
oor
units
in
com
plete
shu
tdo
w
n
1t
im
e
Oper
ation
lamp(R
ED)
C
luste
r
lam
p(
B
LUE)
Oper
atio
n
lam
p
(RED)
Cl
u
ster
la
mp(BLUE)
Oper
ati
on
lamp(R
ED)
Cluster
lamp
(BLUE)
Oper
ation
lamp(R
ED)
Cluster
lamp(BLUE)
Oper
ati
o
n
lam
p
(RED)
C
luster
lam
p(
B
LUE)
Oper
ati
on
lamp(R
E
D
)
C
luster
lam
p(
B
LUE)
Oper
ati
on
lamp(RED
)
C
luster
lam
p(
B
LUE)
O
pe
rati
o
n
lam
p
(RED)
Cluster
la
mp(BLUE)
Oper
ati
on
lamp(R
ED)
Cluster
lamp(BLUE)
O
per
atio
n
lam
p
(RED)
Cl
u
ster
la
mp(BLUE)
O
p
eratio
n
lam
p
(RED
)
C
luste
r
lam
p(BLUE)
O
p
e
rati
o
nl
a
m
p
(RED
)
Cl
u
s
ter
lam
p(BLU
E
)
Oper
ati
o
nl
a
mp(
R
ED
)
Cl
u
ster
lam
p(BL
U
E
)
Oper
atio
nl
a
mp(
RED
)
C
lu
ster
lam
p(
BL
U
E
)
Oper
ati
o
nl
a
mp(
RED)
Cl
u
ster
lam
p
(BL
U
E
)
Oper
ati
o
nl
a
mp(
R
ED
)
Cl
u
ster
lam
p(BL
U
E
)
O
per
atio
nl
amp(
RED
)
Cl
uster
lam
p(B
L
U
E
)
O
p
e
rati
o
nl
a
m
p
(RED
)
Cl
u
s
ter
lam
p(BLU
E
)
Oper
atio
nl
a
mp(
RED)
Cl
u
ster
lam
p
(BL
U
E
)
Oper
ati
o
nl
a
mp(
RE
D
)
Cl
u
ster
la
m
p(BL
U
E
)
Oper
ati
o
nl
a
mp(
RED
)
Cl
u
ster
lam
p
(BL
U
E
)
Ou
tdoo
r
u
nit
thermistor sh
o
rt
-cir
cuit
(1)Mea
sur
e
re
s
is
ta
nce
o
f
the
o
utd
oor
unit
th
ermistors
.
(TH
2
~
4
,6~8
:
Approx.4.4
ka
t2
5ºC
(2)
Che
c
kt
he
lead
w
ire
o
f
the
o
utdo
or
unit
thermistor
for
torn
s
he
ath
and
shortcir
cuit.
(3)N
o
abno
rm
ality
foun
di
na
b
ove
in
s
pect
ions
(1)
a
nd
(2)
.
(1)R
ep
la
c
e
th
eo
u
tdoor
un
it
thermistor
assem
bly.
(2)R
ep
lace
th
eo
u
tdoor
un
it
therm
istor
a
s
sem
bly.
(3
)R
e
place
the
ou
tdoo
r
u
nit
c
ontrol
P
C
B
assem
bly.
Ind
oor/out
door
un
its
in
comp
le
te
s
hu
tdown
2t
im
e
Cy
cle
te
mperat
ure
(1)
C
heck
th
eo
utdoo
r
u
nit
air
outlet
for
b
lockag
e
.
(2)C
he
ck
if
th
ep
ow
e
r
sup
ply
v
ol
tage
is
A
C2
30V
a
tf
u
llp
o
w
er.
(3)C
he
c
kt
he
p
ip
ec
o
n
n
ections
fo
r
refri
g
erant
lea
ks
.
(4)Measu
re
resista
n
ce
of
the
o
u
tdo
or
unit
com
pressor
thermistor.
(TH1:App
rox.
53k
a
t
25ºC)
(5)C
h
eck
the
expa
nsi
o
n
v
alve
for
p
ro
per
o
per
at
io
n.
(1
)En
s
u
re
uno
bstr
u
cted
a
irf
lo
wf
ro
m
the
ou
td
oor
u
nit
a
ir
ou
tlet.
(2)
Con
nect
p
ow
e
r
su
pply
of
p
rop
er
v
o
lt
age.
(3)C
ha
rge
the
s
pe
cifi
e
da
m
oun
t
o
f
refrigerant
.
(4)
Re
p
la
ce
the
outd
oor
un
it
co
m
pressor
the
rm
isto
r
a
s
sem
bly.
(5)R
ep
la
c
e
the
expan
si
o
n
v
alve
coil,expan
si
on
valve
or
o
utdo
or
unit
c
o
ntrol
P
CB
assem
bly.
Ind
oor
unit
in
operation
Out
door
unit
in
tem
porar
y
sto
p
(T
em
porary
s
top
for
cyc
le
p
rot
ection)
(T
e
mpo
rary
s
top
for
cycl
ep
ro
tection
)
(Tem
por
ary
s
to
pf
or
cy
cle
p
rote
c
tion)
IPM
h
igh
tem
perature
e
rror
(1
)M
easure
resis
tance
o
ft
h
e
he
at-si
nk
thermistor
(CN8B).
(1
)C
hang
et
h
eh
e
a
t-
sink
th
ermistor.
In
door/ou
tdoo
r
u
nits
in
com
plet
es
h
u
td
o
wn
5t
im
e
Outd
oor
unit
th
er
m
isto
r
o
pen-
cir
cuit
(1)C
he
c
kc
o
nnecto
r
CN
8
Aa
n
dC
N
8C
of
the
outd
oor
u
nit
thermistor
for
secure
installation.
(2)Me
asure
re
si
sta
nce
o
f
out
d
o
or
the
rm
isto
rsT
H
1
~
4
,6
~
8.
(3)C
h
eck
the
le
ad
wir
e
so
ft
h
e
rm
isto
rsT
H
1
~
4
,6~8o
nt
h
eo
u
tdoor
u
nit
c
ont
rol
P
C
B
for
o
pen
-circu
it
.
(4)
N
o
ab
norm
al
it
y
fou
nd
in
above
inspe
c
tions
(1
)th
ro
ug
h(
3
).
(1)C
o
rrect
th
e
installation.
(2
)R
e
place
the
out
door
u
n
it
therm
ist
o
ra
ss
em
bly.
(3)Replace
the
o
utdo
or
unit
th
ermistor
a
ssemb
ly.
(4)Rep
la
ce
th
eo
utd
oo
r
unit
co
ntrol
P
CB
assemb
ly.
In
doo
r/
outdoo
r
u
nits
in
co
mple
te
s
h
utd
own
6t
ime
Ou
tdoo
ru
n
it
DC
C
u
rre
n
t
DC
ov
ercurrent
e
rr
o
r
(1)IP
Mc
o
n
tinuity
ch
eck.
(2
)Check
the
IP
Ma
n
dh
e
at
si
n
k
for
secure
insta
ll
at
ion.
(3)Che
c
k
the
o
u
tdoo
ru
n
itf
a
n
mo
tor
fo
r
prope
rr
o
ta
ti
on
.
(4
)No
a
bn
or
ma
lity
foun
di
n
ab
ove
in
s
pectio
ns
(1)th
rou
gh
(3
).
(5
)No
abn
o
rma
li
tyf
o
u
nd
in
ab
ove
inspect
io
ns
(1)thr
o
ugh
(4)
.
(1)R
e
place
the
o
u
tdo
or
uni
t
IPM
PCB
a
ssem
bly.
(2)Corr
e
ct
th
e
insta
lla
tion
(tigh
ten
th
es
crews)
.
Ap
p
ly
si
licon
g
rea
se.
(3)Rep
la
c
e
th
eo
utd
oor
u
nit
fa
nm
o
tor.
(4
)Rep
la
ce
the
outd
oor
u
nit
IPM
PC
Ba
s
s
e
mb
ly.
(5
)Rep
lac
e
the
com
p
ressor.
Indoo
r/
out
d
oo
r
u
nits
in
co
mple
te
shutd
own
7
ti
me
Ou
tdoo
ru
nit
AC
C
u
rr
e
nt
AC
o
v
e
rc
u
rren
te
rror
(1)Ensu
re
u
n
obst
ru
c
ted
air
flow
from
the
ou
tdo
or
u
n
it
air
o
u
tl
et
.
(2)Check
the
out
doo
ru
nit
fan
mo
to
r.
(1)Ensu
re
u
n
obst
ru
c
te
d
air
flow
from
the
ou
tdoor
u
n
it
air
o
u
tl
et.
(2)Check
the
out
door
unit
fan
mot
o
r.
AC
curren
te
rror
w
h
en
OF
F
(1)IPM
cont
inuity
c
h
ec
k
(1)R
e
plac
e
the
ou
tdo
o
rI
P
M
PW
B
AC
m
axim
u
mc
u
rr
e
nt
e
rr
or
(1)Ensu
re
u
n
obst
ru
c
te
d
air
flow
fr
om
the
ou
tdoor
u
n
it
air
o
u
tl
et.
(2)Check
the
out
door
unit
fan
mot
o
r.
(1)Ensur
e
un
obst
ru
c
ted
air
flow
from
the
ou
td
o
or
un
it
air
o
u
tlet.
(2)Che
ck
the
out
d
oo
ru
n
itf
an
mo
tor.
AC
cur
ren
t
def
ici
e
ncy
e
rror
(1)R
e
place
the
ou
tdo
or
u
n
it
con
tr
o
lP
C
Ba
s
se
mb
ly
.
(2)Charge
the
spe
ci
fi
e
d
amo
un
to
f
ref
ri
g
erant
.
(3)Corr
e
c
t
refrigeran
t
clog
s.
(Sto
pv
a
lve
,pipe
,e
xp
ansion
val
ve)
(1)R
e
plac
e
the
ou
tdo
o
r
u
n
it
con
tr
o
lP
CB
a
s
se
mbl
y.
(2)Charg
e
the
spe
ci
fi
e
da
mo
un
to
fr
e
fri
g
erant
.
(3)
Correc
t
ref
ri
gerant
c
log
s.
(S
top
v
alve
,pi
pe,ex
p
ans
io
nv
a
lv
e
)
In
doo
r/
o
ut
doo
ru
n
it
s
in
co
mplet
e
sh
utd
own
A
bnorm
al
w
ire
che
ck
Ab
normal
wi
re
che
ck
e
rror
(1)C
heck
th
ee
xp
an
sion
v
a
lve
.(
u
n
it
A-C
)
(2)Ar
ef
o
ur
exp
a
n
si
o
nv
a
lve
sc
on
necte
db
ym
ista
ke
(3)
Che
c
k
the
w
iring
bet
w
e
en
units.
(1)
R
e
place
the
o
u
tdo
or
con
tr
o
lb
o
ard
a
s
s
e
mb
ly
.
(2
)Reat
tach
(3)Che
c
k
the
w
iring
bet
w
e
en
units.
In
doo
r/
o
ut
doo
ru
n
it
s
in
co
mpl
e
te
sh
utd
own
Ou
tdoo
ru
nit
DC
F
a
n
Ou
td
oo
r
u
nit
D
Cf
a
n
rota
tion
e
rr
o
r
(1
)C
heck
c
on
necto
rC
N
3
of
the
o
u
tdo
or
unit
D
C
fan
moto
rf
o
r
secure
instal
lation.
(2)C
heck
the
out
doo
r
uni
tf
an
mo
tor
fo
r
p
ro
pe
r
ro
tat
ion
.
(3)Che
c
k
fu
se
FU
SE
5.
(4
)Ou
tdo
o
r
u
n
it
con
tr
o
lP
CB
(1)C
o
rrect
the
insta
llat
io
n.
(2)R
eplace
th
eo
utdo
or
unit
fa
nm
oto
r.
(3)Rep
la
c
et
h
eo
utd
oor
u
nit
c
o
ntr
o
lP
CB
a
ssemb
ly.
(4
)Rep
la
c
et
he
outd
oor
u
nit
c
o
ntr
o
lP
C
B
assembly.
Flashes
in
1-
sec
int
er
va
ls
(norm
al)
:
1sec
ON
/
1sec
OFF
X
:
:
OF
F:
F
la
s
h
e
s3t
im
e
si
n
0.2-sec
inte
rvals
8
time
11
tim
e
X
Heat
e
x
ch
ange
rt
h
e
rmi
st
or
short
cir
cu
it
err
o
r
Ou
tdo
or
te
m
p
er
a
tu
re
therm
istor
sho
rt
cir
cuit
er
ror
S
uc
tion
the
rm
is
tor
s
ho
rt
ci
rcuit
err
o
r
Thermistor
U
ni
t
A-
C
thermistor
sho
rt
c
irc
u
it
er
ror
C
om
pr
essor
h
igh
temp
era
ture
e
rror
Tempor
ary
stop
due
to
c
omp
ress
or
d
is
cha
rge
o
verhea
t.
Tem
porary
sto
p
d
ue
to
indo
or
un
it
h
eat
e
x
c
hang
er
overheat
.
Hea
t
e
xchan
ger
the
rm
isto
r
o
pen
circuit
err
o
r
Outd
oor
tem
perature
thermistor
open
cir
cuit
e
rror
S
u
ct
io
nt
h
e
rmisto
r
o
pen
ci
rcuit
err
o
r
Su
ction
th
erm
ist
or
op
en
c
ircuit
e
rro
r
D
isch
arge
th
e
rm
istor
o
p
e
n
ci
rcuit
err
or
The
rmis
tor
U
n
it
A
-
C
the
rmi
st
or
ope
n
circ
u
it
error
T
e
mpo
ra
ry
s
top
due
to
o
ut
do
or
unit
hea
t
e
xcha
nger
over
h
e
at.
O
per
ati
o
nl
amp(
RED
)
Cl
u
s
te
rl
a
m
p(BL
U
E)
-1
IPM
p
in
level
er
ror
(1)C
h
eck
the
IPM
isa
ttached
correc
it
y
to
the
o
u
td
o
or
un
it
IPM
P
W
B.
(1)R
e
place
the
o
u
td
o
or
un
it
IP
MP
W
Ba
s
s
e
mb
ly.
In
doo
r/
o
ut
doo
ru
n
it
s
in
co
mpl
e
te
sh
utd
own
12
time
O
per
ati
o
nl
a
m
p(
RED
)
Cluste
r
la
mp
(BL
U
E
)
12
-0
The
rm
al
fu
se
in
ter
minal
bo
ard
The
rm
al
fu
se
e
rror
in
termina
lb
o
a
rd
(for
p
ow
er
sup
ply)
(1)C
h
e
ck
th
et
hermal
fuse
in
term
ina
lb
o
a
rd
(for
P
o
w
e
rs
u
p
p
ly)
(2)C
heck
co
nn
ec
to
rC
N
5
o
ft
h
e
outd
oor
unit
.
(1)
R
e
place
term
inal
b
o
ard
for
P
owe
r
su
pply
(2
)R
eplace
th
eo
u
td
o
or
un
it
c
on
trol
PCB
a
ssem
bly.
9t
ime
Oper
ati
o
n
lamp(
RED
)
Cl
u
ster
lam
p(B
L
U
E
)
-4
4
w
a
yv
alve
e
rro
r
o
r
Gas
lea
ke
rr
o
r
(1)
C
h
eck
to
m
a
ke
su
re
ou
tdoor
u
n
it
the
rm
istor
T
H2
(e
x
ch
ang
e)
a
n
d
T
H3
(pip
e
te
mp
eratu
re)
are
insta
ll
e
di
n
corr
ect
po
rtio
ns.
(2)Che
c
k
if
the
refige
ra
nt
vo
lume
is
a
b
nom
ally
low
.
(3
)Che
ck
th
e
4
-way
va
lv
e
for
p
ro
per
o
p
erat
io
n.
(1)C
o
rrect
the
ins
tal
lat
io
n.
(2
)Cha
nge
the
sp
e
cci
fi
e
d
amo
unt
of
re
fr
ig
erant
.
(3
)Rep
la
ce
th
e
4-w
a
yv
a
lve.
9
Cycl
e
te
mp
era
tur
e