LG LSC121PMA Service Manual - Page 46

When Indoor Fan does not operate.

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5. When Indoor Fan does not operate. Does the voltage of each terminals of CN-MOTOR CONNECTOR in Indoor unit corresponds to values in the Table of page 51? Does the voltage of terminal of CN-DC/DC CONNECTOR in Check connecting condition of the CN-MOTOR Indoor unit corresponds to the values in the table of page 51? CONNECTOR Do the voltage of terminal of CN-DC/DC CONNECTOR in Outdoor unit corresponds to the values in the table of page 51? Check the pattern and the condition of Indoor unit PWB Ass'y. Check the interference of Indoor Fan. NO YES Check the patterns and the conditions of outdoor unit PWB Assy's. Check the connecting condition and disconnection of connecting wires between Indoor and Outdoor unit. Check the motor of Indoor Fan Indoor Fan may be stopped in the Soft Dry Mode(change to the Cooling Operation Mode). Indoor Fan is to be stopped when Indoor pipe(coil) termperature is lower than 79°F. (At that times, Defrost indicator is turned on) - 46 -

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- 46 -
5. When Indoor Fan does not operate.
Check connecting condition of the CN-MOTOR
CONNECTOR
Does the voltage of terminal of CN-DC/DC CONNECTOR in
Indoor unit corresponds to the values in the table of page 51?
Do the voltage of terminal of
CN-DC/DC CONNECTOR in
Outdoor unit corresponds to the
values in the table of page 51?
Check the patterns and the
conditions of outdoor unit
PWB Assy's.
Check the connecting
condition and disconnection
of connecting wires between
Indoor and Outdoor unit.
Check the pattern and the
condition of Indoor unit PWB
Ass'y.
Check the interference of Indoor Fan.
Does the voltage of each terminals of CN-MOTOR CONNECTOR in
Indoor unit corresponds to values in the Table of page 51?
Check the motor of Indoor Fan
Indoor Fan may be stopped in the Soft Dry Mode(change to the Cooling Operation Mode).
Indoor Fan is to be stopped when Indoor pipe(coil) termperature is lower than 79°F.
(At that times, Defrost indicator is turned on)
NO
YES