Sharp AE-X3M18JR, Service Manual

Page: 19 / 40

3 – 4
Status
o
f
indoo
r/
outdo
or
units
Indication
by
LE
D
1o
n
ou
tdoor
u
nit
*2
Ind
ication
on
in
door
u
nit
Conte
nt
o
f
diagn
osi
s
Inspection
location
/meth
od
R
em
edy
Floor
/
ceili
n
g
W
a
ll
(Pane
l)
Lighti
ng
pattern
at
the
ti
me
of
timer
la
mp
li
g
hting
Main
S
ub
for
5
sec
o
n
ds
M
ain
cate
gor
y
Sub
c
at
ego
ry
Fl
a
s
h
es
in
1-sec
intervals
(n
ormal)
:
1sec
ON
/
1
s
e
cO
F
F
X
:
:
OFF
:
Flas
h
es
3
ti
m
es
in
0.
2-
se
ci
nt
ervals
X
13
-0 -1 -2
14
-0
17
-0
-1
18
-0
19
-0
20
-0
30
-0 -1
Operation
lamp(RED)
Cluster
lamp(BLUE)
Operation
lamp(RED)
Cluster
lamp(BLUE)
Operation
lamp(RED)
Cluster
lamp(BLUE)
Operation
lamp(RED)
Cluster
lamp(BLUE)
Operation
lamp(RED)
Cluster
lamp(BLUE)
Operation
lamp(RED)
Cluster
lamp(BLUE)
Operation
lamp(RED)
Cluster
lamp(BLUE)
Operation
lamp(RED)
Cluster
lamp(BLUE)
Operation
lamp(RED)
Cluster
lamp(BLUE)
Operation
lamp(RED)
Cluster
lamp(BLUE)
Operation
lamp(RED)
Cluster
lamp(BLUE)
Operation
lamp(RED)
Cluster
lamp(BLUE)
Operation
lamp(RED)
Cluster
lamp(BLUE)
Indoor/outdoor
units
in
complete
shutdown
Indoor/outdoor
units
in
complete
shutdown
Indoor/outdoor
units
in
complete
shutdown
DC
compressor
Compressor
s
tartup
error
(1)Check
the
c
olors
(red,white,orange)of
the
c
ompressor
c
ords
for
p
roper
connection.
(PWB
s
ide,
compressor
s
ide)
(2)Check
if
the
IPM
terminal
resistance
v
alues
a
re
uniform.
(3)Check
if
outdoor
m
ain
relay
(MR
Y
1)
turns
o
n
a
nd
voltage
o
f
b
oth
e
nd
of
the
c
ondenser
(C10)
h
as
become
DC380V
.
(4)No
a
bnormality
found
in
a
bove
inspections(1)and(3).
(5)No
a
bnormality
found
in
a
bove
inspections(1)and(4).
(1)Correct
the
installation.
(U:Red,V
:White,W
:Orange)
(2)Replace
the
o
utdoor
unit
control
P
WB
assembl
y.
(3)Replace
the
o
utdoor
unit
control
P
WB
assembl
y.
(4)Replace
the
o
utdoor
unit
control
P
WB
assembl
y.
(5)Replace
the
c
ompressor
.
Compressor
rotation
error
.
(at
1
20º
e
nergizing)
Compressor
rotation
error
(at
1
80º
e
nergizing)
Detection
e
rror
o
f
inverter
c
urrent.
Outdoor
unit
Active
Filter
Active
Filter
o
vervoltage
error
(1)Check
the
AC
power
s
upply
voltage
for
fluc
tuation.
(2)No
a
bnormality
found
in
a
bove
inspec
tion
(1).
(3)Replace
the
A
ctive
Filter
.
(1)Connect
s
table
p
ower
supply
.
(2)Replace
the
outdoor
u
nit
c
ontrol
PCB
a
ssembly
.
Clock
e
rror
(1)Check
the
c
lock
for
p
roper
inputt.
(1)Replace
the
o
utdoor
unit
control
P
CB
assembly
.
Indoor
unit
in
operation
Outdoor
unit
in
complete
shutdown
Indoor
unit
in
operation
Outdoor
unit
in
complete
shutdown
Indoor/outdoor
units
in
operation Indoor/outdoor
units
in
operation
Wires
between
units
Serial
open-circuit
(1)Check
the
wires
b
etween
units.
(2)Check
v
oltage
between
N
a
nd
1
the
indoor/outdoor
unit
terminal
boards.
(1)Connect
s
table
p
ower
s
upply
.
(2)Replace
the
outdoor
u
nit
c
ontrol
PCB
a
ssembly
.
(1)Check
the
wires
between
units.
(2)Check
the
o
utdoor
u
nit
fuse.
(3)Check
15-V
,13-V
a
nd
5-V
v
oltages
o
n
the
PCB.
Check
resistance
between
IPM
terminals.
(4)Check
pins
No.5
and
8
of
connector
C
N3
o
ft
he
outdoor
unit
fan
m
otor
for
s
hort-circuit.
(5)Outdoor
unit
control
P
CB.
(1)Correct
the
wiring.
(2)Replace
the
fuse/outdoor
unit
control
P
CB
assembly
.
(3)Replace
the
outdoor
u
nit
c
ontrol
PCB
a
ssembly
.
(4)Replace
the
outdoor
u
nit
fan
motor
.
(5)Replace
the
outdoor
u
nit
c
ontrol
PCB
b
oard.
Wires
between
units
Serial
short-circuit
(1)Check
the
wires
between
u
nits.
(1)Correct
the
wiring.
Serial
erroneous
wiring
(1)Check
the
wires
b
etween
units.
(1)Correct
the
wiring.
Indoor
unit
fan
Indoor
unit
fan
e
rror
(1)Check
the
indoor
fan
motor
for
p
roper
rotating
operation.
(Check
fan
lock.)
(2)Check
the
lead
wire
of
the
indoor
fan
motor
for
open-circuit.
(3)Check
c
onnector
of
the
indoor
unit
fan
m
otor
for
s
ecure
installation.
(4)No
abnormality
found
in
a
bove
inspections
(1)through
(3).
(1)Replace
the
indoor
fan
motor
.
(2)Replace
the
indoor
fan
motor
.
(3)Correct
the
installation
o
f
C
N3
of
the
indoor
fan
motor
.
(4)Replace
the
indoor
unit
control
P
CB.
Indoor
unit
control
PCB
EEPROM
data
error
(EEPROM
read
d
ata
e
rror)
(1)Replace
the
indoor
unit
control
P
CB.
D
ra
inp
um
pu
ni
t
Drain
p
ump
u
nit
e
rror
(1)Check
c
onnector
C
N2
and
C
N10.
(1)Replace
the
D
rain
pump
unit
unit.
(2)Re-insertion
o
f
C
N2
and
C
N10.
13
time
14
time
X X X X
Erroneous
w
iring
Operation
lamp(RED)
Cluster
lamp(BLUE)
-4
low
v
altage
error
(1)Check
the
A
C
p
ower
supply
valtage
for
fluntuation.
(1)Conect
s
table
p
ower
supply
.
(2)Replace
tfe
o
utdoor
unit
control
P
CB
assembl
y.
3-
(1)Check
the
circuit
of
detection
of
inverter
current.
(1)Replace
the
o
utdoor
unit
control
P
CB
assembl
y.