Sharp AE-XM24HR, Service Manual

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Status
o
f
indoor/outdoor
units
Indication
by
LED1
on
outdoor
unit
*2
Indication
on
indo
or
unit
Content
of
diagno
sis
Inspection
location
/method
Remedy
Floor
/
c
eiling
Wall
(Panel)
Wall(Grill)
Lighting
pattern
a
t
the
time
of
timer
lamp
lighting
Main
Sub
Main
for
5
seconds
Main
category
Sub
c
ategory
Indoor/outdoor uni
ts
in
operati
on
Normal fl
as
hi
ng
Normal
_
_ _ _ _ _
In
door/outdoor
uni
ts
inc
ompl
ete
s
h
utdown
1t
ime
Ope
ra
ti
o
n
lam
p(RE
D)
C
lus
ter
lamp(BLUE
)
O
p
eration
lam
p(RE
D
)
Clus
ter
lamp(BLUE
)
Opera
ti
o
n
lam
p(RE
D)
Cl
u
s
ter
la
mp(BLUE)
O
p
eration
lamp
(RE
D)
Cl
us
ter
lamp
(BLUE)
O
p
eration
lamp
(R
E
D)
Cl
us
ter
lamp
(B
LUE)
Operation
lamp
(RE
D)
Cl
us
ter
lamp
(BLUE)
Ope
ra
ti
o
n
lam
p(RE
D)
Cl
us
ter
lamp(BLUE
)
O
p
eration
lamp(RE
D)
Cl
us
ter
lamp(BL
UE)
O
p
eration
lam
p(RE
D
)
Clus
ter
lamp(BLUE
)
Ope
ra
ti
o
n
lam
p(RE
D)
C
lus
ter
lamp(BLUE
)
Ope
ra
ti
o
n
lam
p(RE
D)
Cl
us
ter
lamp(BLUE)
Operatio
n
lamp
(RE
D)
Cl
us
ter
lam
p(BLUE)
Operation
lamp
(RE
D)
C
lus
ter
lamp(BLUE
)
Operation
lam
p(
R
E
D)
Clus
ter
la
mp(
B
LU
E
)
O
peration
lam
p(
RE
D)
Clus
ter
lam
p(
B
LU
E
)
Operation
lam
p(RE
D)
Clus
ter
lamp(
B
LU
E
)
Operation
lam
p(
R
E
D)
Clus
ter
la
mp(
B
LU
E
)
Operation
lam
p(
R
ED)
Cl
uster
la
mp(
B
LU
E
)
Operatio
n
la
mp(RE
D)
Cl
us
te
r
lamp(
B
LU
E
)
O
peration
lam
p(
RE
D)
Clus
ter
lam
p(
B
LU
E
)
Operation
lam
p(
R
E
D)
Clus
ter
lam
p(
B
LU
E
)
Operat
ion
lamp(RE
D
)
Cl
u
s
ter
lamp(
B
L
U
E
)
O
utdo
or
un
it
thermi
s
tor
s
hort-c
ir
c
uit
(1
)M
eas
ure
res
is
tanc
e
o
f
the
outdoo
r
u
ni
tt
h
e
rm
is
tors
.
(TH
2
~
4
,6~
9
:
A
pprox
.4.4
k
at
25
͠
)
(2)
Chec
kt
h
e
lead
w
ire
of
the
outdoor
uni
tt
h
e
rmis
tor
for
torn
s
he
ath
a
nd
s
hor
t-
c
irc
ui
t.
(3)
No
ab
nor
m
ali
ty
fou
nd
in
a
bov
ei
ns
pec
ti
on
s
(1)and
(2).
(1)Repl
ac
et
h
eo
u
tdoor
u
ni
t
ther
m
is
to
r
as
s
e
mbl
y
.
(2)Repl
ac
et
h
eo
u
tdoor
uni
t
ther
m
is
to
r
as
s
e
mbl
y
.
(3)Repl
a
c
e
the
o
ut
door
uni
tc
ontrol
PCB
as
s
emb
ly
.
Indoor/outdoor uni
ts
in
c
om
pl
ete
s
hu
tdown
2t
ime
Cy
c
le
temperature
(1)
Chec
k
the
outd
o
o
r
uni
ta
ir
out
let
for
b
loc
k
age.
(2)
Che
c
k
ift
h
e
power
s
up
ply
v
olt
a
g
ei
s9
0V
or
hi
gher
a
tf
u
ll
power
.
(3)
Che
c
kt
h
e
p
ipe
c
onnec
ti
ons
for
refri
g
er
an
tl
eak
s
.
(4)
M
eas
ure
res
is
tanc
e
of
the
o
u
tdoor
u
ni
tc
ompr
es
s
or
ther
m
is
tor
.
(TH1:Ap
pr
ox
.53
k
at
25
C)
(5)
Chec
k
the
e
x
pans
ion
v
al
v
e
for
p
roper
o
per
at
ion.
(1)En
s
ure
unobs
truc
ted
a
ir
flow
from
the
outdo
or
uni
t
air
outl
e
t.
(2)Connec
tp
o
w
e
r
s
uppl
y
of
proper
v
oltag
e.
(3
)Charge
the
s
pec
ifi
ed
amo
unt
o
f
re
fri
ger
a
nt.
(4
)Repl
ac
e
the
out
door
u
ni
tc
o
mpr
e
s
s
or
th
e
rmi
s
tor
a
s
s
embl
y
.
(5)
Repl
ac
et
h
e
e
x
p
ans
ion
v
alv
ec
oil
,ex
pa
ns
ion
v
alv
eo
r
o
utdoor
un
itc
ontrol
PCB
as
s
embl
y
.
Indoor
uni
ti
n
operati
on
O
utd
oor
uni
ti
n
temporary
s
top
(T
em
porar
ys
to
pf
o
r
c
y
c
le
protec
tion
)
(Temporary
s
top
for
c
y
c
le
pr
ot
ec
ti
on)
(Temp
or
ary
s
top
for
c
y
c
le
p
rotec
ti
on)
Temporary
s
to
p
due
to
IPM
ov
erheat
*3
(Tem
porar
y
s
top
fo
r
pa
rts
pr
o
tec
ti
on)
IPM
hi
gh
tem
peratur
e
er
ror
(1)
M
eas
ure
res
is
tan
c
e
of
the
h
eat-s
ink
thermi
s
to
r.(CN8B)
(1)Change
th
eh
e
a
t-s
ink
thermi
s
tor.
Ind
oor
/o
utdoor
un
its
in
c
ompl
ete
s
hutdown
5t
im
e
O
utdoor
uni
t
ther
m
is
tor
o
pen-
c
irc
uit
(1)Chec
k
c
onnec
tor
C
N8A
and
C
N8C
o
f
the
out
door
uni
t
thermis
tor
for
s
ec
ure
ins
tall
ati
on.
(2
)M
eas
ure
res
is
tanc
e
of
outdoor
thermi
s
tors
TH1~4,6~9.
(3)
Chec
k
the
lea
dw
ir
e
s
of
the
rmis
tor
s
TH
1
~
4
,6~9
on
the
outdoor
uni
t
c
ontrol
PCB
for
open
-c
irc
ui
t.
(4)
No
abn
or
ma
li
ty
found
in
abov
ei
ns
pec
ti
ons
(1)
th
rough
(3)
.
(1)Correc
tt
h
e
ins
ta
ll
a
ti
on.
(2)Repl
ac
e
the
o
ut
door
u
ni
tt
h
e
rm
is
tor
a
s
s
embl
y
.
(3
)Repl
ac
e
the
o
ut
door
u
ni
tt
h
e
rm
is
tor
a
s
s
embl
y
.
(4
)Repl
ac
et
h
e
o
u
tdoor
uni
tc
on
tr
ol
PCB
a
s
s
e
mbly
.
Indo
or/outdoor
unit
si
n
c
o
mpl
ete
s
h
utdown
6
time
Outdoor
u
ni
t
DC
C
urrent
DC
ov
erc
urrent
error
(1)
IPM
c
ontinui
ty
c
hec
k
(2)
Chec
kt
h
e
IP
Ma
n
d
h
eat
s
ink
for
s
e
c
ur
ei
ns
tal
la
tio
n.
(3)
Chec
k
the
outdo
or
u
ni
t
fan
motor
for
prop
er
rotat
ion.
(4)
No
abn
ormal
ity
fou
nd
in
abo
v
ei
ns
pec
ti
ons
(1)th
rough
(3).
(5)
No
ab
normal
ity
fo
und
ina
b
o
v
e
ins
pec
ti
ons
(1)t
hrough
(4).
(1)
Repl
ac
et
h
e
out
door
unit
IPM
P
C
B
as
s
embl
y
.
(2)
Corr
ec
tt
h
e
ins
tal
la
ti
on
(ti
g
hte
nt
h
e
s
c
re
w
s
).
Appl
y
si
li
con
g
reas
e
.
(3)
Repl
ac
et
he
out
door
un
it
fan
motor.
(4)
Replac
e
the
out
door
un
itI
P
M
P
C
B
a
s
s
embl
y
.
(5)
Replac
e
the
c
omp
res
s
o
r.
Indo
or/outdoor
un
its
in
com
pl
ete
s
h
utdown
7t
ime
O
utdoor
u
ni
t
AC
Cur
re
nt
AC
ov
erc
u
rrent
er
ro
r
(1)
Ens
u
re
unobstruc
te
d
a
ir
flow
from
the
outdo
or
un
it
air
o
utl
et.
(2)
Chec
k
the
outdo
or
unit
fan
moto
r.
(1)
Ens
ur
e
un
obs
truc
ted
air
fl
ow
from
the
o
utdo
or
unit
air
outl
et.
(2)
Chec
k
the
outdo
or
uni
tf
a
n
m
otor.
A
Cc
urrent
er
ror
w
hen
O
FF
(1)IPM
c
ontinui
ty
c
hec
k
(1)
Repl
ac
et
h
e
o
u
tdoor
IPM
P
WB
AC
max
im
um
c
urrent
e
rr
o
r
(1)
E
ns
ur
e
unobs
tr
uc
ted
ai
rf
low
fr
om
the
outdo
o
r
u
nit
a
ir
outl
e
t.
(2)
Che
c
kt
h
e
o
u
tdo
or
unit
fan
m
otor.
(1)
Ens
ur
e
unobs
truc
ted
a
ir
flow
from
th
e
outdo
or
uni
t
air
o
utl
et.
(2)
Chec
k
the
outdo
or
un
it
fan
m
otor.
AC
c
urren
td
e
fi
c
ienc
ye
rror
(1)
Replac
e
the
o
ut
door
uni
tc
ontr
ol
PCB
as
s
embly
.
(2)
Charge
the
s
pec
ified
amoun
to
fr
ef
rige
rant.
(3)
Corr
ec
t
refri
gerant
c
lo
gs
.
(Stop
v
al
v
e,pi
pe,ex
p
an
s
ion
v
al
v
e)
(1)
Re
pl
ac
et
h
e
o
ut
door
uni
tc
ont
rol
PCB
as
s
embly
.
(2)C
h
arge
the
s
p
ec
ifi
ed
amou
n
to
fr
ef
rigerant.
(3
)C
o
rre
ct
re
fr
ig
e
ra
n
t
cl
o
g
s.
(S
to
pv
a
lv
e
,p
ip
e
,e
xp
a
n
sio
nv
a
lv
e
)
Indoor/out
door
units
in
c
ompl
et
e
s
hutdown
Abnorm
al
wi
re
c
hec
k
Abn
ormal
wi
rec
he
c
k
error
(1)
Chec
kt
h
e
e
x
pa
ns
ion
v
alv
e.
(un
itA
-
D)
(2)
A
re
four
ex
pan
s
io
nv
al
v
es
c
on
nec
ted
b
y
m
is
ta
k
e
(3)
Ch
ec
k
the
wir
ing
between
un
its
.
(1)
Replac
e
the
out
door
c
o
ntrol
board
a
s
s
embly
.
(2)
Reattac
h
(3)
Chec
k
the
w
iring
b
etween
un
its
.
Indo
or/outdoor
unit
s
in
c
o
mpl
ete
s
h
utdown
Outdoor
u
ni
t
DC
F
an
O
utdoor
un
itD
Cf
a
n
rotat
ion
err
or
(1
)Check
c
o
n
n
ec
to
r
CN3
o
f
the
outdo
or
uni
t
DC
fan
m
otor
fo
rs
e
c
ure
in
stal
lation.
(2)
Chec
k
th
e
o
utdo
or
unit
fan
motor
for
prop
er
rotati
on.
(3)
Chec
kf
u
s
e
F
USE5.
(4)
O
utdoo
r
uni
tc
ont
rol
P
C
B
(1)
Cor
rec
t
the
ins
tal
la
tion.
(2)
Rep
lac
e
the
ou
tdoor
uni
tf
a
n
m
otor.
(3)
Re
plac
et
h
e
o
ut
door
uni
tc
on
tr
ol
PCB
as
s
embly
.
(4)R
e
plac
et
h
e
o
ut
door
unit
c
on
tr
ol
PCB
a
s
s
embly
.
Flashes
in
1
-sec
inte
rvals
(normal)
:
1
sec
O
N
/
1s
ec
OFF
X
::
OFF
:
Flashes
3
times
in
0
.2-sec
intervals
8t
im
e
11
time
X
Heat
ex
c
hanger
th
er
mi
s
to
rs
hort
c
ir
c
ui
t
error O
utdoor
temper
atureth
ermisto
r
s
hor
t-
c
ir
c
ui
te
rror
Suc
ti
on
th
er
m
is
to
r
s
ho
rt-c
ir
c
ui
te
rror
Thermi
s
tor
U
ni
t
A
-
D
thermi
s
tor
s
hort-
c
irc
ui
te
rr
o
r
Comp
res
s
or
hi
gh
tem
perature
er
ror
Te
mpora
ry
s
top
due
to
comp
re
s
sor
dis
-
c
h
arge
o
v
e
rh
eat
*3
Temporary
s
to
p
due
to
in
door
uni
t
heat
ex
c
h
anger
ov
erhea
t*
3
Heat
ex
c
hanger
th
er
m
is
tor
open-
c
irc
ui
t
err
or
O
ut
door
temperature
the
rmi
s
tor
o
pen-
c
irc
ui
te
rr
or
Suc
ti
on
the
rmi
s
tor
o
pe
n
c
irc
ui
te
rr
o
r
Suc
tion
thermi
s
tor
o
pe
nc
irc
ui
te
rror
Di
s
c
harge
thermi
s
tor
o
pen-c
irc
ui
te
rr
or
Ther
mi
s
tor
Unit
A
-D
thermis
tor
o
pen-
c
ir
c
ui
te
rr
o
r
Temporary
s
to
p
due
to
o
ut
door
unit
Operation
lam
p(RE
D)
Cl
us
ter
lamp(
B
LU
E
)
-1
IPM pi
nl
ev
e
l
er
ror
(1)
Chec
k
the
IPM
is
at
tac
hed
c
orr
ec
ity
to
the
o
utdoor
u
ni
tI
P
M
PW
B.
(1)
Replac
et
h
e
out
door
unit
IPM
P
WB
as
s
embl
y
.
Indo
or/outdoor
uni
ts
in
c
o
mpl
ete
s
h
utdown
12
ti
me
Operat
ion
lamp(RE
D
)
Cl
u
s
ter
lamp(
B
L
U
E
)
12
-0
12
T
her
mal
fus
e
in
te
rmi
n
al
board
Th
er
mal
fus
ee
rr
or
in
te
rmi
n
al
board
(for
power
s
upp
ly
)
(1)
Check
th
G
V
JG
T
O
CN
H
W
U
G
K
P
V
GTO
K
P
C
N
D
Q
C
T
F
H
Q
T
2
Q
Y
G
T
U
WR
R
N
[
(1)
Repl
ac
e
terminal
boa
rd
for
P
ower
s
uppl
y
(2)
Replac
e
the
outdoor
uni
tc
on
tr
ol
PCB
as
s
embly.
9t
im
e
Operation
lam
p(
R
E
D)
Cl
us
ter
lam
p(
B
LU
E
)
-4
4w
a
y
v
al
v
ee
rror
o
rG
as
leak
e
rror
(1)
Chec
k
to
mak
e
s
ur
eo
u
td
o
o
r
uni
tt
h
e
rmi
s
to
rT
H2
(ex
c
ha
nge)
is
ins
ta
ll
ed
in
c
or
rec
t
TH3
(pi
pe
tem
per
ature)
poc
ti
ons
.
(2)
Ch
ec
ki
ft
h
e
refi
gerant
vol
u
me
is
abnom
all
y
low.
(3)
Che
c
kt
h
e
4
-w
a
yv
al
v
ef
o
r
p
roper
operati
o
n.
(1)
Corr
ec
tt
h
e
in
s
tal
lati
on.
(2)
Change
the
s
pec
c
if
ied
a
mount
o
fr
efr
igerant.
(3)
Rep
lac
e
the
4-
w
ay
v
al
v
e.
99
Cy
c
le
temperatur
e
(2)
Chec
kc
o
nnec
tor
CN5
o
f
the
outdoor
uni
t.