Sharp AE-XM24HR, Service Manual

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Status
of
indoor/outdoor
units
Indication
by
LED1
on
outdoor
unit
*2
Indication
on
indo
or
unit
Content
of
diagno
sis
Inspection
location
/method
Remedy
Floor
/ceiling
Wa
ll
(Panel)
W
all(Grill)
Lighting
pattern
at
the
time
of
timer
lamp
lighting
Main
Sub
Main
for
5
seconds
Main
category
Sub
category
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
DC
compressor
Compressor
startup
err
or
(1)Check
the
colors
(r
ed,white,orange)of
the
compressor
cords
for
proper
connection.
(PWB
side,
compressor
side)
(2)Check
if
the
IPM
terminal
resistance
values
are
uniform.
(3)Check
if
outdoor
main
relay
(MR
Y1)
turns
on
and
voltage
of
both
end
of
the
.
condenser
(C10)
has
become
DC380V
.
(1)Correct
the
installa
tion.
(U:Red,V
:White,W
:Orange)
(2)Replace
the
out
door
unit
control
P
WB
assembly
.
(3)Replace
the
out
door
unit
control
P
WB
assembly
.
(4)Replace
the
outdoor
unit
control
PWB
assembly
.
(5)Replace
the
compressor
.
Compressor
rotation
error
.
(at
120
qGPGTIK\KPI
Compressor
rotation
error
(at
180
qGPGTIK\KPI
Detection
error
of
inverter
current.
Indoor/outdoor units
in
complete shutdown
Outdoor
unit
active
filter
Active
filter
overvoltage
error
(1)Check
the
AC
power
supply
voltage
for
fluc
tuation.
(2)No
abnormality
found
in
above
inspec
tion
(1).
(1)Connect
stable
power
supp
ly
.
(2)Replace
the
out
door
unit
control
PCB
assembly
.
Clock
error
(1)Check
the
clock
for
proper
inputt.
(1)Replace
the
out
door
unit
control
P
CB
assembly
.
Indoor
unit
in
operation Outdoor
unit
in
complete shutdown
Wires
between
units
Serial
open-circui
t
(1)Check
the
wires
be
tween
units.
(2
)Check
voltage
between
N
and
1
the
indoor/outdoor
uni
tt
erminal
boards.
(1)Connect
stable
power
supp
ly
.
(2)Replace
the
out
door
unit
control
P
CB
assembly
.
(1)Check
the
wires
be
tween
units.
(2)Check
the
outdo
or
unit
fuse.
(3)Check
15-V
,13-V
and
5-V
voltages
on
the
PCB.
Check
resistance
between
IPM
terminals.
(4)Check
pins
N
o.5
and
8
of
connector
CN3A
o
ft
he
outdoor
unit
fan
m
otor
for
sho
rt-circuit.
(5)Outdoor
unit
cont
rol
P
CB.
(1)Correct
the
w
iri
ng.
(2)Replace
the
fuse
/outdoor
unit
control
PCB
assembly
.
(3)Replace
the
out
door
unit
control
P
CB
assembly
.
(4)Replace
the
out
door
unit
fan
m
otor
.
(5)Replace
the
out
door
unit
control
P
CB
board.
Indoor
unit
in
operation Outdoor
unit
in
complete shutdown
Wires
between
units
Serial
short-circuit
(1)Check
the
wires
be
tween
units.
(1)Correct
the
w
iri
ng.
Serial
erroneous
wiring
(1)Check
the
wires
be
tween
units.
(1)Correct
the
w
iri
ng.
Indoor/outdoor units
in
complete shutdown
Indoor
unit
fan
Indoor
unit
fan
erro
r
(1)Check
the
indoo
r
fan
motor
for
proper
rota
ting
operation.
(Check
fan
lock.)
(2)Check
the
lead
wire
of
the
indoor
fan
moto
r
for
open-circuit.
(3)Check
connector
of
the
indoor
unit
fan
m
otor
for
secure
installatio
n.
(4)No
abnormality
found
in
above
inspec
tions
(1)through
(3).
(1)Replace
the
indoor
fan
motor
.
(2)Replace
the
indoor
fan
motor
.
(3)Correct
the
installa
tion
of
CN3
of
the
indoor
fan
motor
.
(4)Replace
the
indoor
unit
control
PCB.
Indoor/outdoor units
in
operation
Indoor
unit
control
PCB
EEPROM
data
error
(EEPROM
read
data
error)
(1)Replace
the
indoor
unit
control
PCB.
Indoor/outdoor units
in
operation
Drain
pump
unit
Drain
pump
unit
er
ror
(1)Check
connector
C
N2
and
CN10.
(1)Replace
the
Drain
pump
unit
unit.
(2)Re-insertion
of
CN2
and
CN10.
Flashes
in
1-sec
inte
rvals
(normal)
:1
sec
ON
/1sec
O
FF
X
::
OFF
:Flashes
3
times
in
0.2-sec
intervals
13
time
14
time
X X X X
X
erroneous
w
iring
(3)Replace
the
Active
filter
.
Operation
lamp(RED)
Cluster
lamp(BLUE)
-4
low
valtage
error
(1)Check
the
AC
power
supply
valtage
for
fluntuation.
(1)Conect
stable
power
supply
.
(2)Replace
tfe
outdoor
unit
control
PCB
assembly
.
3-
(1)Check
the
circuit
of
detection
of
inverter
current.
(1)Replace
the
outdoor
unit
control
P
CB
assembly
.
(4)No
abnormality
found
in
above
inspections(1)and(3).
(5)No
abnormality
found
in
above
inspections(1)and(4).