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Samsung AQV12ACME - Page 23

Samsung AQV12ACME
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Troubleshooting
5-3-4
Check
of
indoor
unit
fan
motor
>
Check
whether
the
wire
of
fan
motor
is
connected
to
the
connector
of
control
board
(CN42,
CN71)
of
indoor
unit.
>
Check
whether
the
error
mode
displays
after
the
strong
revolution
for
approximately
15
seconds
since
aircon
is
on.
—
In
case
the
error
mode
displays
after
the
fan
motor
is
rotating
for
15
seconds
>
Defect
of
HALL
IC
of
fan
motor
and
Control
board
ie
—
In
case
that
the
error
mode
displays
without
running
of
fan
motor
after
15
seconds.
>
Operate
with
the
pin
of
SSR(SS71)
short
of
indoor
unit
control
board
and
then
if
the
fan
motor
does
not
run,
it
is
the
fan
motor
defect.
If
it
rotates,
it
is
the
defect
of
control
board
(SS71,
IC05,
IC04).
5-3-5
Check
of
communication
line
between
the
indoor
unit
and
outdoor
unit
(Communication
error
mode)
1)
Check
of
connection
>
Check
whether
the
cable
wire
connecting
the
indoor
unit
with
outdoor
unit
is
correctly
connect-
ed
to
the
(N1),
1,
2
terminal.
(If
the
wire
is
connected
reversely,
the
communication
error
occurs)
>
If
the
cable
connecting
the
indoor
unit
and
outdoor
unit
is
longer
than
20m,
error
mode
occurs
(shorten
the
cable
length).
,
(Check
of
indoor
unit)
>
Check
whether
the
connection
wire
of
the
terminal
block
and
control
board
of
indoor
unit
is
correct.
(Control
board)
(Terminal
block)
JN
SKY-BLU
N
SKY-BLU
(N1)
RY71
BEN
L
RY71
SKS
1
J
Cc
BLK
2
(Check
of
outdoor
unit)
>
Check
whether
the
connection
wire
of
the
terminal
block
and
control
board
of
outdoor
unit
is
correct,
(Control
board)
(Terminal
block)
#1
of
CN31
aa
2
N
Se,
(NI)
L
BRN
1
2)
Check
of
power
supply
to
the
outdoor
unit
After
operation
of
aircon,
select
the
turbo
mode
and
approximately
3minutes
later,
check
whether
the
red
color
lamp
of
control
board
(to
be
seen
if
the
top
cover
of
outdoor
unit)
is
on.
-»
If
the
red
lamp
(LED
3)
is
not
on,
check
the
power
part
of
control
board
of
outdoor
unit.
¢Check
the
connection
of
reactor.
—
If
the
red
lamp
(LED3)
is
on
and
green
lamp
is
flickering,
it
is
normal.
5-6
Samsung
Electronics

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