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