LG CT12 NR2 - CH 32 (Discharge pipe overheating error of Inverter)

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4. Trouble Shooting
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Items Contents
Purpose
Possible damage of compressor and piping due to high discharge
temperature
Condition for Generation The discharge temperature is elevated exceeding the standard.
Expected
Causes
Installation
Installation fault, closing of SVC valve, under/over charging with refriger-
ant, and infiltration of moisture into refrigerant
Overload Outdoor device shielding, outdoor fan fault, and EEV valve fault
Compressor
Short between compressor coil and sash, abrasion of compressor, and
short/opening of compressor coil
PCB
Assembly
Compressor current and DC link voltage detection circuit fault
Sensor Discharge temperature sensor fault
6.7 Troubleshooting Outdoor Error
CH 32 (Discharge pipe overheating error of Inverter)