LG ARUN Series Service Manual page 113

Error
Error Type
No.
70*
Constant Speed
Master
Compressor CT Sensor
701
Error
Slave
702
I Error Diagnosis and Countermeasure Flow Chart
Is constant speed compressor
CT Sensor connection condition
normal?
Yes
Recheck power and installation condition
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Error Point
Constant Speed
Compressor CT Sensor
Open/short
Check constant speed compressor
No
CT Sensor wiring condition and locking
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Troubleshooting Guide
Main Reasons
1. Constant Speed Compressor CT Sensor
defect
LGE Internal Use Only