LG ARUN Series Service Manual page 127

Error No. Error Type
106*
Master
ODU Fan PCB IPM
11 ¡ 061
Fault
Slave
12 ¡ 062
I Error Diagnosis and Countermeasure Flow Chart
Is fan motor assemble
condition normal?
Yes
Is fan motor wire connection
condition normal?
Yes
Is fan PCB assemble
condition normal?
Yes
Is fan PCB assembly normal?
Yes
Recheck power and
installation condition
Fan Motor Wire connection
Hall Sensor connection
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Error Point
IPM protection circuit activation
(over current / overheating)
No
Check ODU fan motor assemble condition and locking
¡ Reassemble or replace if abnormality found
1.Check fan motor U,V,W connector connection condition
No
¡ Reassemble wire if abnormality found
2.Check fan motor wire disconnection
¡ Replace ODU fan motor if abnormality found
1.Check fan PCB connector condition
No
¡ Reassemble if abnormality found
2.Check assemble condition between fan PCB and Heatsink
¡ Reassemble heatsink if abnormality found
No
Replace fan PCB assembly
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1. Overload operation (Pipe clogging/Covering/EEV
defect/Ref. overcharge
2. ODU fan motor assemble condition abnormal
(Coil disconnection/Short/Insulation damage)
3. Fan PCB heatsink assemble condition abnormal
4. Fan PCB assembly defect
Fan IPM assemble position
Check assemble condition
Fan Heatsink assemble position
Check assemble condition
Troubleshooting Guide
Main Reasons
LGE Internal Use Only