LG LSC121PMA Service Manual - Page 50

Outdoor Unit

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OUTDOOR UNIT Connector Type CN-POWER RY-COMP terminal CN-TRANS CN-FAN The connecting wire of CNDC/DC, and Indoor and Outdoor Unit Blue Black Brown Red Condition OPEN Connecting reversely OPEN Connecting reversely OPEN OPEN OPEN Connecting error ( ) Connecting error ( ) Connecting error ( ) Connecting error ( ) Connecting error ( ) Connecting error ( ) Phenomena • All functions stop. • The operation with the remote controller, forced and test one do not operate. • PWB pattern is damaged when applying the power. • All functions stop or the compressor does not operate. • The operation with the remote controller, forced and test one do not operate. • All functions stop. • The operation with the remote controller, forced and test one do not operate. • All functions stop. • The operation with the remote controller, forced and test one do not operate. • The Indoor Fan does not operate. • All functions stop. • The operation with the remote controller, forced and test one do not operate. • The only signal of remote controller operation/stop is inputted, but the product does not operate. • The RED indicator of outdoor unit blinks 5 times after 2 minutes with applying the power. • The beep sound, such as "beep, beep, beep, beep, beep", occurs periodically in Indoor unit. • The signal input of a remote controller and operation of product is impossible. • The RED indicator blinks 5 times after 2 minutes with applying the power. • The signal of remote controller is inputted, but the product does not operate. • The RED indicator of outdoor unit and the operation indicator of indoor one blinks 5 times after 2 minutes with applying the power. • No power for Indoor unit. • The signal input of the remote controller and operation of product is impossible. • The thermal protector of the Power Trans operates when let it alone for long time. • The signal of the remote controller is inputted. • The fuse and Q61 in the Outdoor unit are damaged when the indoor fan is operated. • No power for Indoor unit. • The signal input of the remote controller and operation of product is impossible. • The RED indicator of the Outdoor unit blinks 5 times after 2 minutes with applying the power. - 50 -

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- 50 -
OUTDOOR UNIT
Connector Type
Condition
OPEN
• PWB pattern is damaged when applying the power.
Connecting reversely
Connecting reversely
OPEN
OPEN
OPEN
OPEN
Connecting error
(
)
Connecting error
(
)
Connecting error
(
)
Connecting error
(
)
Connecting error
(
)
Connecting error
(
)
• All functions stop.
• The operation with the remote controller, forced and
test one do not operate.
• All functions stop.
• The operation with the remote controller, forced and
test one do not operate.
• The Indoor Fan does not operate.
• The signal of remote controller is inputted, but the
product does not operate.
• The RED indicator of outdoor unit and the operation
indicator of indoor one blinks 5 times after 2 minutes
with applying the power.
• No power for Indoor unit.
• The signal input of the remote controller and
operation of product is impossible.
• The thermal protector of the Power Trans operates
when let it alone for long time.
• The signal of the remote controller is inputted.
• The fuse and Q61 in the Outdoor unit are damaged
when the indoor fan is operated.
• No power for Indoor unit.
• The signal input of the remote controller and
operation of product is impossible.
• The RED indicator of the Outdoor unit blinks 5 times
after 2 minutes with applying the power.
• All functions stop.
• The operation with the remote controller, forced and test
one do not operate.
• The only signal of remote controller operation/stop is
inputted, but the product does not operate.
• The RED indicator of outdoor unit blinks 5 times after 2
minutes with applying the power.
• The beep sound, such as "beep, beep, beep, beep,
beep", occurs periodically in Indoor unit.
• The signal input of a remote controller and operation of
product is impossible.
• The RED indicator blinks 5 times after 2 minutes with
applying the power.
• All functions stop or the compressor does not operate.
• The operation with the remote controller, forced and test
one do not operate.
• All functions stop.
• The operation with the remote controller, forced and test
one do not operate.
CN-POWER
RY-COMP
terminal
CN-TRANS
CN-FAN
The connecting
wire of CN-
DC/DC, and
Indoor and
Outdoor Unit
Blue
Black
Brown
Red
Phenomena