LG LF300CP(LP-C303R20) - Manual (Page 36)

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3) Airflow Direction does not operate.
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Is the unit operating?
Is the Auto Swing S/W "ON"?
Is the DC5V at 16 terminal?
(MICOM)
Is the DC12V
at each terminal?
(RY-Sync COIL)
Check the synchronous
motor winding.
Replacement RY-Sync
Check synchronous connector
contact point. Is the AC220V(240V)
at each terminal
(SYN. MOTOR CONNECTOR)?
Replacement ICO2M
Replacement MICOM
The power ON/OFF S/W ON
Press the Auto Swing S/W