Sharp AE-X2M14LR, Service Manual, Page: 18 / 40

3 – 3
0
-0
1
-0
5
-0
6
-0
7
-0
8
-0
11
-0
2
-0 -1 -2 -3
-1 -2 -3
-1 -2 -5 -4
-1 -2 -3
Sta
tus
of
ind
oor/out
doo
r
uni
ts
Ind
ica
tion
by
LED1
on
outd
oor
unit
*2
Indication
on
ind
oor
unit
C
onten
to
fd
ia
gno
sis
In
spection
loc
ation
/m
etho
d
Reme
dy
Fl
oor
/ceil
ing
Wall
(P
anel)
Li
ghti
ng
pat
ter
n
at
the
time
of
tim
er
lamp
lighti
ng
M
ain
Sub
fo
r
5
second
s
Ma
inc
at
eg
or
y
S
ub
cat
eg
ory
Indoo
r/o
utdo
or
units
in
operat
ion
Nor
m
al
flashing
N
or
ma
l
_
_ _ _ _
Ind
oor/outd
oor
un
its
in
com
plete
shu
tdo
w
n
1t
im
e
Oper
ati
on
lamp(R
ED)
C
luste
r
lam
p(
B
LUE)
Oper
ati
on
lam
p(
RED)
Cl
uster
la
mp(BLUE)
Oper
ati
on
lamp(R
ED)
Cluster
lamp
(BL
U
E)
Oper
ation
lamp(R
ED)
Cluster
lamp
(BLUE)
O
pe
rati
on
lam
p(
RED)
C
luste
r
lam
p(
B
LUE)
Oper
ation
lamp(R
ED)
C
luste
r
lam
p(
B
LUE)
Oper
ati
on
lamp(R
E
D
)
C
luste
r
lam
p(
B
LUE)
O
perati
on
lam
p(
RED)
Cluster
lamp(BLUE)
O
perati
on
lam
p(
RED)
C
luste
r
lam
p(BLUE)
Oper
ati
on
lamp(R
E
D
)
C
luste
r
lam
p(
B
LUE)
Oper
ati
on
lamp(R
ED)
Cl
uster
lamp(
BL
U
E
)
Oper
ati
onl
amp(
RED)
Cl
uster
lamp(BL
U
E
)
O
per
ati
onl
am
p(RED
)
Cl
us
ter
lam
p(BLU
E
)
Oper
ati
onl
amp(
R
ED
)
Cl
uster
lam
p(BL
U
E
)
Opera
tio
nl
amp(
R
ED
)
Cl
uster
lam
p(BL
U
E
)
O
per
ati
onl
am
p(
RED
)
Cl
us
ter
lam
p(BLU
E
)
Oper
ati
on
la
mp(
RED)
Cl
uster
lamp(BL
U
E
)
Oper
ation
la
mp(
RED)
Cl
uster
lamp(BL
U
E
)
Opera
tio
nl
amp(
R
ED
)
Cl
uster
lam
p(BL
U
E
)
O
pe
ratio
nl
am
p(RED
)
Cl
us
te
rl
am
p(BL
U
E
)
Oper
ati
onl
amp(
R
ED
)
Cl
uster
lam
p(BL
U
E
)
Ou
tdoo
r
unit
thermistor shor
t-
circ
uit
(1)
Mea
sur
e
re
sis
ta
nce
of
the
outd
oor
unit
th
ermistors.
(TH
2
~
4,6~8
:Approx.4.
4k
at
25ºC
(2)C
he
ckt
he
lea
dw
ire
of
the
outd
oor
unit
thermistor
for
torn
she
ath
and
shortcir
cuit.
(3)N
o
abno
rm
ality
foun
di
na
bove
in
spect
ions
(1)
and
(2).
(1)R
ep
la
ce
th
eo
ut
door
unit
thermisto
r
as
sem
bly.
(2)R
ep
lace
th
eo
ut
door
un
it
therm
istor
as
sem
bly.
(3
)R
eplace
the
ou
tdoo
r
unit
contr
ol
PCB
as
sem
bly.
Ind
oor/out
door
un
itsi
n
comp
le
te
shu
tdown
2t
im
e
Cy
cle
te
mperat
ure
(1)
Che
ckt
heo
utdoo
r
unit
air
outlet
for
blockag
e.
(2)C
heck
if
th
ep
ow
er
sup
ply
voltage
is
A
C
230V
at
full
po
w
er.
(3)C
he
ck
the
pi
pec
on
nections
fo
r
refrigerant
lea
ks.
(4)Mea
su
re
resista
nc
e
of
the
outd
oor
unit
com
pr
essor
thermistor
.
(T
H1:App
rox.
53k
at
25ºC)
(5)Check
the
expa
nsi
on
valve
for
pr
oper
operat
io
n.
(1
)En
sure
uno
bstructed
ai
r
flow
from
the
outd
oor
unit
air
ou
tlet.
(2)
C
on
nect
pow
er
su
pply
of
pr
op
er
voltage.
(3)C
ha
rge
the
sp
ecifi
eda
m
oun
to
fr
ef
rig
er
an
t.
(4)
Re
pl
ace
the
out
door
un
it
compressor
the
rm
isto
r
as
sem
bly.
(5)R
ep
la
ce
the
expan
si
on
valve
coil,expan
si
on
valve
or
outdo
or
unit
cont
rol
PCB
assem
bly.
Ind
oor
un
iti
n
operation
Out
door
uni
ti
n
tem
porar
y
sto
p
(T
emporar
ys
to
p
for
cycl
ep
rot
ection
)
(T
empo
ra
rys
to
p
for
cycl
e
pr
otection
)
(Tem
porary
stop
for
cy
cle
prote
ct
ion)
IPM
hi
ght
empe
ra
tur
e
err
or
(1)Mea
sur
e
re
si
sta
nce
of
the
heat
-sink
th
er
m
isto
r
(CN
8B).
(1)C
ha
nge
the
heat-sink
thermi
sto
r.
Indo
or/outd
oor
units
in
complet
es
hu
tdown
5t
im
e
Ou
tdoo
r
unit
thermistor
open
-
ci
rcu
it
(1)Check
conn
ector
C
N8A
an
dC
N
8Co
ft
he
ou
tdoo
r
unit
the
rm
isto
r
for
se
cure
in
stall
ation.
(2)
M
easure
resistance
of
ou
tdoo
r
thermistors
T
H1
~
4,
6
~8
.
(3
)Check
the
lea
dw
ires
of
thermistors
T
H1
~
4,
6~8o
n
the
outdo
or
uni
t
co
ntrol
P
C
B
for
open
-circuit.
(4)N
o
ab
norm
ality
found
in
above
inspe
ctions
(1
)th
ro
ug
h(
3)
.
(1
)Corr
ect
the
insta
llatio
n.
(2)R
ep
la
ce
the
out
do
or
unit
thermistor
assemb
ly
.
(3)
Re
pl
ace
the
out
door
un
it
the
rmistor
assem
bly.
(4)Re
pl
ace
th
eo
utdoo
r
unit
cont
rol
PCB
as
se
mbly.
In
doo
r/
out
doo
ru
nits
in
co
m
ple
te
sh
utd
ow
n
6
time
Ou
tdoor
unit
DC
C
ur
re
nt
D
C
overcurre
nt
err
or
(1)IPM
cont
inuity
ch
ec
k.
(2)Check
the
IPM
and
heat
si
nkf
ors
ecure
in
sta
lla
tion.
(3)Che
ckt
he
ou
tdoo
ru
nit
fan
mo
to
rf
orp
ro
pe
r
ro
tation
.
(4
)No
abn
orma
lity
fo
un
di
n
ab
ove
in
spectio
ns
(1)throu
gh
(3
).
(5
)No
abn
or
ma
lit
y
fo
und
in
ab
ove
in
spect
io
ns
(1)th
ro
ugh
(4
).
(1)R
eplac
e
the
ou
tdoor
un
it
IPM
P
CB
assemb
ly.
(2)Corr
ect
the
insta
lla
tion
(tigh
te
n
th
e
screws
).
A
pp
ly
si
lic
on
grea
se.
(3)Repl
ace
th
eo
utdoor
unit
fan
mot
or.
(4
)Re
pl
ace
the
ou
tdoo
r
unit
IP
MP
C
B
as
se
mb
ly.
(5
)R
ep
lace
the
co
m
pressor.
In
doo
r/out
doo
ru
ni
ts
in
co
mpl
ete
sh
utd
ow
n
7
time
Ou
td
oo
ru
ni
t
AC
Curr
ent
AC
ov
erc
ur
ren
te
rror
(1)
Ens
ur
e
un
obst
ru
ct
ed
air
flow
from
the
ou
td
oor
un
it
air
ou
tlet.
(2)Che
ck
the
out
doo
r
unit
fan
mo
tor.
(1)En
su
re
un
obs
tr
uc
ted
air
flow
from
the
ou
tdo
or
un
it
air
ou
tlet.
(2)C
heck
the
ou
tdoo
ru
ni
tf
an
mo
tor.
AC
curr
en
te
rror
w
he
n
O
FF
(1)IPM
con
tinuity
ch
eck
(1)R
eplace
the
ou
td
oor
IPM
P
W
B
AC
maximu
mc
urr
ent
er
ror
(1)En
su
re
un
obst
ru
ct
ed
air
flow
from
the
ou
tdo
or
un
it
air
ou
tlet.
(2)C
heck
the
ou
tdoo
ru
ni
tf
an
mo
tor.
(1)En
su
re
un
ob
st
ru
ct
ed
air
flow
from
th
e
ou
tdo
or
un
it
air
ou
tlet.
(2)
Check
the
out
doo
ru
ni
tf
an
mo
tor.
AC
curre
ntd
efici
ency
er
ror
(1)R
epl
ace
the
ou
td
oor
un
it
con
tr
olP
C
B
as
semb
ly.
(2)Ch
arge
the
spe
ci
fie
da
mo
un
tof
re
fri
geran
t.
(3)C
orr
ect
refrig
eran
tclog
s.
(S
to
p
valve
,p
ipe
,exp
ansio
n
valve)
(1)R
ep
lace
the
ou
td
oor
un
it
co
nt
ro
lP
C
B
as
se
mb
ly.
(2)C
harge
the
sp
eci
fie
da
mo
un
to
fr
efri
gera
nt
.
(3)
Corr
ec
tr
ef
rigerant
cl
og
s.(
S
top
val
ve,pi
pe,ex
pans
ion
va
lv
e)
In
do
or
/out
doo
r
units
in
comple
te
sh
utdown
Ab
normal
wi
re
che
ck
Abnorm
al
wi
re
check
er
ror
(1)C
heck
th
ee
xp
an
sion
va
lve.
(un
it
A-
C)
(2)Are
fo
ur
exp
an
si
on
val
ve
sc
on
nec
ted
bym
ista
ke
(3)Che
ck
th
e
w
iring
betw
een
units.
(1)R
eplace
the
ou
tdo
or
con
tr
olb
oard
as
se
mb
ly
.
(2)Reat
ta
ch
(3)Che
ckt
he
w
iring
bet
w
een
units.
In
doo
r/
out
doo
r
units
in
co
mple
te
sh
utdown
Ou
td
oo
r
unit
DC
F
an
Ou
tdoo
ru
nit
D
Cf
an
rotat
ion
err
or
(1
)C
hec
kc
on
ne
cto
rC
N3
oft
he
outdoor
un
it
D
Cf
an
motor
for
secure
insta
llation
.
(2)Chec
kt
he
out
door
unit
fan
mot
orf
or
pr
oper
rot
ation
.
(3)Chec
k
fuse
F
U
S
E
5.
(4
)Out
do
or
un
it
co
ntr
olP
C
B
(1)C
or
re
ct
the
insta
llati
on.
(2)Rep
lace
th
eo
utdoor
un
it
fa
nm
ot
or
.
(3)Re
pl
ace
th
eo
utdoor
unit
cont
rol
PCB
as
se
mbly.
(4
)R
ep
la
ce
the
out
doo
r
unit
co
ntrol
P
C
B
as
sem
bly.
Flashes
in
1-
se
ci
nter
va
ls(
norm
al)
:1sec
ON
/1sec
OFF
X
:
:
OF
F
:Flashe
s3t
im
esi
n
0.2-sec
inte
rvals
8
time
11
time
X
Heat
exc
hange
rt
hermi
st
or
short
cir
cu
it
err
or
Ou
tdo
or
te
m
per
atu
ret
he
rm
istor
sh
ort
cir
cuit
err
or
S
uc
tion
the
rm
istor
sho
rt
ci
rcuit
er
ro
r
The
rm
istor
Unit
A
-
C
the
rmistor
sho
rt
circ
ui
terr
or
C
om
pressor
high
temp
erature
error
Tempor
ary
stop
due
to
comp
ress
or
di
sc
ha
rge
overhea
t.
Tem
porary
st
op
due
to
indo
or
un
it
heat
exchang
er
overheat
.
Heat
ex
ch
ange
r
thermis
tor
open
cir
cuit
er
ror
Outd
oor
tem
perature
thermistor
ope
n
circ
uit
error
S
uct
ion
the
rm
is
tor
open
ci
rcuit
err
or
Su
cti
on
therm
ist
or
op
en
circui
te
rror
Di
sch
ar
ge
the
rm
isto
ro
pen
ci
rcu
it
err
or
T
her
m
is
tor
U
nit
A
-
C
th
er
m
ist
or
open
circ
uit
error
Tempo
ra
ry
stop
due
to
out
do
or
unit
he
at
excha
nger
overh
eat.
Oper
ati
on
la
mp(
RED)
C
lu
ster
lam
p(
BL
U
E
)
-1
IPM
pi
n
le
vel
er
ror
(1)C
hec
kt
heI
PM
is
atta
ched
co
rrecity
to
the
ou
tdo
or
un
itI
P
MP
W
B.
(1)R
eplace
the
ou
tdo
or
un
it
IPM
P
WB
ass
emb
ly
.
In
do
or
/out
doo
r
units
in
co
mple
te
sh
utdown
12
time
Oper
ation
la
mp(
RED)
Cluste
r
la
mp(BL
U
E
)
12
-0
The
rm
al
fu
se
in
te
rmina
lb
oard
The
rm
al
fu
se
er
ror
in
terminal
boa
rd
(for
power
sup
ply
)
(1)C
heck
th
et
he
rm
al
fuse
in
ter
mina
lb
oar
d
(for
Po
w
er
su
pp
ly)
(2)C
heck
conn
ector
C
N5
of
th
eo
utd
oor
un
it.
(1)R
eplace
term
in
al
bo
ard
for
Pow
er
su
pply
(2)Replac
e
th
eo
utdo
or
un
it
con
trol
P
CB
assemb
ly.
9
time
Oper
ati
onl
amp(
RED)
Cl
uster
la
m
p(BL
U
E
)
-4
4
w
ay
valve
er
ror
or
G
as
lea
ke
rr
or
(1)C
heck
to
make
su
re
ou
tdo
or
un
it
the
rm
istor
T
H2
(exch
ange)
an
dT
H
3
(p
ip
e
te
mp
er
at
ur
e)a
re
in
sta
lle
di
n
corr
ect
po
rti
ons.
(2)Che
cki
fthe
refig
er
ant
vo
lume
isa
bnom
ally
low.
(3
)Check
the
4-way
va
lve
for
pr
oper
operat
io
n.
(1)C
or
rect
the
insta
llat
io
n.
(2)Cha
nge
the
spe
cci
fie
da
mo
unt
of
re
fr
ig
erant
.
(3
)Rep
la
cet
he
4-w
ayv
alve.
9
Cyc
le
te
m
peratu
re
-5 -4
T
empe
rat
ure
stop
due
to
IPM
over
heat.
Oper
ation
lamp(R
ED)
Cluster
lamp(BLUE)