LG LM-1830C2L Service Manual page 48

4. When indoor Fan does not operate.(or "ON/OFF" led of display blinks 8 times)
Turn off Main power
Check it (Indoor/Outdoor)the connection line is complied with Wiring Diagram
Bad connection Good connection
Correct connection line
Check the line fuse in the outdoor unit
Check the connection of CN-MOTOR
check the operation of blower by manual
Check POLY S/W in indoor PCB Ass'y
If it is opened If it is shorted
Exchange Indoor PCB Ass'y Check the outdoor PCB Ass'y
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