LG HMC030KD1 Service Manual - Page 53

Vertical, Louver, operate., Heating, operate

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5. When Vertical Louver does not operate. • Confirm that the Vertical Louver is normally geared with the shaft of Stepping Motor. • If the regular torque is detected when rotating the Vertical Louver with hands = Normal • Check the connecting condition of CN-U/D Connector • Check the soldering condition(on PWB) of STEP(U/D) Connector Lk Check the operating circuit of the Vertical Louver • Confirm that there is DC +12V between pinT(RED) of CN-U/D and GND. • Confirm that there is a soldering short at following terminals. - Between (j) C), so) andC) of MICOM - Between (:), a Oland O of ICO1M - Between 6, O, and of IC01M If there are no problems after above checks • Confirm the assembly conditions that are catching and interfering parts in the rotation radial of the Vertical Louver 6. When Heating does not operate Turn ON Main Power Operate "Heating Mode( *)" by setting the desired temperature of the remote controller is higher than one of the indoor temperature by 2°C(4°P) at least. In heating Mode, the indoor fan operates in case the pipe temperature is higher than 28°C(50T). - 53 -

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5.
When
Vertical
Louver
does
not
operate.
•
Confirm
that
the
Vertical
Louver
is
normally
geared
with
the
shaft
of
Stepping
Motor.
•
If
the
regular
torque
is
detected
when
rotating
the
Vertical
Louver
with
hands
=
Normal
•
Check
the
connecting
condition
of
CN-U/D
Connector
•
Check
the
soldering
condition(on
PWB)
of
STEP(U/D)
Connector
Lk
Check
the
operating
circuit
of
the
Vertical
Louver
•
Confirm
that
there
is
DC
+12V
between
pinT(RED)
of
CN-U/D
and
GND.
•
Confirm
that
there
is
a
soldering
short
at
following
terminals.
-
Between
(j)
C),
so
)
andC)
of
MICOM
-
Between
(:),
a
Oland
O
of
ICO1M
-
Between
6,
O,
and
of
IC01M
If
there
are
no
problems
after
above
checks
•
Confirm
the
assembly
conditions
that
are
catching
and
interfering
parts
in
the
rotation
radial
of
the
Vertical
Louver
6.
When
Heating
does
not
operate
Turn
ON
Main
Power
Operate
"Heating
Mode(
*)"
by
setting
the
desired
temperature
of
the
remote
controller
is
higher
than
one
of
the
indoor
temperature
by
2°C(4°P)
at
least.
In
heating
Mode,
the
indoor
fan
operates
in
case
the
pipe
temperature
is
higher
than
28°C(50T).
-
53
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