AYXP9LSR
3 – 18
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
Inspection
location/method
Remedy
Lighting
pattern
at
the
time
of
timer
lamp
lighting
Off
for
5
seconds
Main
category
Sub
category
Malfunction
No.
:Flashes
in
2-sec
intervals
(normal)
:On
:O
ff
:F
lashes
3
times
in
0.2-sec
intervals
(1)
Check
the
wires
between
units.
(2)
Check
voltage
between
Nos.
1
and
2
on
the
indoor/outdoor
unit
terminal
boards.
(1)
Check
the
wires
between
units.
(2)
Check
the
outdoor
unit
fuse.
(3)
Check
15-V,
13-V
and
5-V
voltages
on
the
PWB.
Check
resistance
between
IPM
terminals.
(4)
Check
pins
N
o.
5
and
7
of
connector
CN3
of
the
outdoor
unit
fan
motor
for
short-circuit.
(5)
Outdoor
unit
control
PWB
(1)
Check
the
wires
between
units.
(1)
Connect
stable
power
supply.
(2)
Replace
the
outdoor
unit
control
PWB
assembly.
(1)
Correct
the
wiring.
(2)
Replace
the
fuse
or
outdoor
unit
control
PWB
assembly.
(3)
Replace
the
outdoor
unit
control
PWB
assembly.
(4)
Replace
the
outdoor
unit
fan
motor.
(5)
Replace
the
outdoor
unit
control
PWB
assembly.
(1)
Correct
the
wiring.
(1)
Check
the
wires
between
units.
(1)
Correct
the
wiring.
Serial
open
circuit
Outdoor
unit
does
not
turn
on
due
to
erroneous
wiring
Serial
short
circuit
Erroneous
serial
wiring
Operation
lamp
Cluster
lamp
Operation
lamp
Cluster
lamp
Operation
lamp
Cluster
lamp
Operation
lamp
Cluster
lamp
Wires
between
units
Wires
between
units
Indoor
unit
in
operation Outdoor
unit
in
temporary
stop
Indoor
unit
in
operation Outdoor
unit
in
temporary
stop
(1)
Check
the
AC
power
supply
voltage
for
fluctuation.
(2)
No
abnormality
found
in
above
inspection
(1)
C
onnect
the
connector.
(2)
R
eplace
the
active
filter.
PAM
over
voltage
Operation
lamp
Cluster
lamp
14
time
Indoor/ outdoor
units
in
complete
shutdown
14
17
18
*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
(1)
Check
the
indoor
unit
fan
m
otor
for
proper
rotating
operation.
(Check
for
fan
lock.)
(2)
Check
the
lead
wire
of
the
indoor
unit
fan
motor
for
open-circuit.
(3)
Check
CN1
and
CN5
of
the
indoor
unit
fan
motor
for
secure
installation.
(4)
No
abnormality
found
in
above
inspec-
tions
(1)
through
(3).
(1)
Replace
the
indoor
unit
fan
motor.
(2)
Replace
the
indoor
unit
fan
motor.
(3)
Correct
the
installation
of
CN1
and
CN5
of
the
indoor
unit
fan
motor.
(4)
Replace
the
indoor
unit
control
PWB.
(1)
Error
in
data
read
from
the
indoor
unit
EEPROM
(1)
Replace
the
indoor
unit
control
PCB.
Indoor
unit
fan
er-
ror
EEPROM
data
error
Operation
lamp
Cluster
lamp
Operation
lamp
Cluster
lamp
Indoor
unit
fan
Indoor
unit
control
PWB
Indoor/ outdoor
units
in
complete
shutdown
19
20
Indoor/ outdoor
units
in
complete
shutdown
error Compressor rotation
error.
-0
-1
Outdoor
unit
PAM
PAM
clock
error
(1)
Check
the
PAM
clock
for
proper
input.
(1)
R
eplace
thoutdoor
unit
control
P
WB
assembly.
-1
-0
Operation
lamp
Cluster
lamp
-0
-1
-0
-0
-2
Operation
lamp
Cluster
lamp
PAM
voltage
error
