When Indoor Fan Does Not Operate - LG LA120CPI Service Manual

Troubleshooting Guide

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 72
Does the voltage of terminal of CN-DC/DC CONNECTOR in
Indoor unit corresponds to the values in the table of page 72
Do the voltage of terminal of
CN-DC/DC CONNECTOR in
Outdoor unit corresponds to the
values in the table of page 72
NO
Check the patterns and the
conditions of outdoor unit
PWB Assy's.
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)
66 Room Air Conditioner
Check the pattern and the
condition of Indoor unit PWB
Ass'y.
Check the connecting condi-
tion and disconnection of
connecting wires between
Indoor and Outdoor unit.
Check connecting condition of the CN-MOTOR CON-
NECTOR
Check the interference of Indoor Fan.
Check the motor of Indoor Fan