Sharp AE-X18LR, Руководство по обслуживанию

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AYXPC18LR
3 – 3
:Flashes
in
2-sec
intervals
(normal)
:O
n
:Off
:Flashes
3
times
in
0.2-sec
intervals
Status
of
indoor/ outdoor
units
Indication by
LED
on
outdoor unit
Indication
by
operation
lamp
on
indoor
unit
Content
of
diagnosis
Main
category
Sub-category
(1)
Check
the
connector
of
the
outdoor
unit
thermistor
for
secure
installation.
(2)
Measure
resistance
of
the
outdoor
ther-
mistor.
(3)
Check
the
lead
wire
of
the
outdoor
unit
thermistor.
(4)
No
abnormality
found
in
above
inspec-
tions
(1)
through
(3).
(1)
IPM
continuity
check
(2)
Check
the
IPM
and
heat
sink
for
secure
installation.
(3)
C
heck
the
outdoor
unit
fan
motor
for
proper
rotation.
(4)
No
abnormality
found
in
above
inspec-
tions
(1)
through
(3).
(5)
No
abnormality
found
in
above
inspec-
tions
(1)
through
(4).
(1)
Check
the
outdoor
unit
air
outlet
for
blockage.
(2)
Check
the
outdoor
unit
fan
for
proper
rotation.
(1)
C
heck
the
outdoor
unit
air
outlet
for
blockage.
(2)
Check
the
outdoor
unit
fan
for
proper
rotation.
(1)
Check
if
there
is
an
open-circuit
in
the
secondary
winding
of
the
current
trans-
former
of
the
outdoor
unit
control
PWB.
(2)
Check
if
the
refrigerant
volume
is
abnor-
mally
low.
(3)
Check
if
the
refrigerant
flows
properly.
(1)
Correct
the
installation.
(2)
Replace
the
outdoor
unit
thermistor
assembly.
(3)
Replace
the
outdoor
unit
thermistor
assembly.
(4)
R
eplace
the
outdoor
unit
control
PWB
assembly.
(1)
R
eplace
the
outdoor
unit
control
PWB
assembly.
(2)
Correct
the
installation
(tighten
the
screws).
Apply
silicon
grease.
(3)
Replace
the
outdoor
unit
fan
motor.
(4)
R
eplace
the
outdoor
unit
control
PWB
assembly.
(5)
Replace
the
compressor.
(1)
Ensure
unobstructed
air
flow
from
the
outdoor
unit
air
outlet.
(2)
Check
the
outdoor
unit
fan
motor.
(1)
Ensure
unobstructed
air
flow
from
the
outdoor
unit
air
outlet.
(2)
Check
the
outdoor
unit
fan
motor.
(1)
Replace
the
outdoor
unit
control
PWB
assembly.
(2)
Charge
the
specified
amount
of
refriger
-
ant.
(3)
Correct
refrigerant
clogs.
(2-way
valve,
3-way
valve,
pipe,
expansion
valve)
Inspection
location/method
Remedy
Heat
exchanger
thermistor
open
-
circuit
error
Outdoor
tempera-
ture
thermistor
open
circuit
error
Suction
thermistor
open-circuit
error
Discharge
thermis
-
tor
open
circuit
error
DC
overcurrent
er
-
ror AC
overcurrent
er
-
ror AC
maximum
cur
-
rent
error
AC
current
defi
-
ciency
error
Lighting
pattern
at
the
time
of
timer
lamp
lighting
Off
for
5
seconds
Operation
lamp
Cluster
lamp
Operation
lamp
Cluster
lamp
Operation
lamp
Cluster
lamp
Operation
lamp
Cluster
lamp
Operation
lamp
Cluster
lamp
Operation
lamp
Cluster
lamp
Operation
lamp
Cluster
lamp
Operation
lamp
Cluster
lamp
Outdoor
unit
thermistor short-circuit Outdoor
unit
DC
Outdoor
unit
AC
5
time
6
time
7
time
9
time
Indoor/ outdoor
units
in
complete
shutdown
*3:
The
content
of
diagnosis
is
transferred
to
the
indoor
unit
via
serial
communication,
but
it
does
not
trigger
a
complete
shutdown
operation.
Number
of
repetition
°:
No
complete
shutdown
Main
category
Sub
category
Malfunction
No.
50
1 2 4
60 70
0 3
1 4 2 3
Operation
lamp
Clus
te
rl
amp
4
way
valve
err
or
or
Gas
leak
error
(1)
C
heck
to
make
sur
e
outdoor
unit
ther
mi
stor
TH
2(
ex
ch
ange)
and
TH
3(
pi
pe
temperature)
are
instal
led
in
correct
portions.
(2)
Ch
eck
if
th
er
efi
geran
tv
olum
e
is
abnomall
yl
ow
.
(3)
C
heck
the
4-w
ay
valve
for
proper
op
eration
.
(1)
Correct
the
in
sta
llation.
(2)
Change
the
speccified
amount
of
refrigerant.
(3)
Replac
e
the
4-way
va
lv
e.
Cyc
le
tem
perature
AC
overcurrent
er
-
ror
in
OFF
status
(1)
IPM
continuity
check
(1)
Replace
the
outdoor
unit
control
PWB
assembly.
Operation
lamp
Cluster
lamp
Outdoor
unit
cooling/heating switchover
Thermistor
install-
tion
error
or
4-way
valve
error
(1)
Check
to
make
sure
outdoor
unit
thermistor
TH2
(heat
exchanger)
and
TH
(2-way
valve)
are
installed
in
correct
posittions.
(2)
Measure
resistance
of
thermistor
TH1
and
TH5.
(3)
Check
the
4-way
valve
for
proper
operation.
(4)
No
abnormality
found
in
above
inspections
(1)
through
(3)
(1)
Correct
the
installation.
(2)
Replace
the
thermistor
assembly.
(3)
Replace
the
4-way
valve.
(4)
Replace
the
outdoor
unit
control
PWB
assembly.
Operation
lamp
Cluster
lamp
Torque
control
error
(1)
Check
if
the
refrigerant
volume
is
abnormally
low.
(2)
Check
the
4-way
valve
for
proper
operation.
(3)
Check
to
see
compressor
type
is
correct
(1)
Change
the
speccified
amount
of
refrigerant.
(2)
Replace
the
4-way
valve.
(3)
Replace
the
compressor
with
correct.
Operation
lamp
Cluster
lamp