LG · Air Conditioning
This fault code indicates that the discharge pipe temperature for a conventional compressor has exceeded 105°C. Similar to the inverter version, this usually relates to refrigerant or airflow problems.
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Turn off the unit and verify that the air intakes and exhausts for both indoor and outdoor units are clear of debris.
Confirm that the system's refrigerant charge is correct.
Power cycle the unit by turning it off for 1 minute.
A technician should be consulted if the high temperature condition continues.