LG ACHH Series Manual page 47

Failure code
During a mobile and an operation, in case of detecting the turning off of load flow switch for 3 seconds, 3
CHxx013 times of accumulation occurs within a hour. When occurring turning off phenomenon for more than 9 sec-
CHxx015 When performing a remote mode of a control mode, a signal of the hardware connection gets short gradually
CHxx021
CHxx022
CHxx023
CHxx024
CHxx025
CHxx026
Control when occurring
Load water flow switch error
Product stop
Product stop
Inverter compressor IPM fault
Inverter compressor drive IPM defect/ Inverter compressor defect
Correspond cycle stop
Inverter compressor input over current
Inverter compressor input over current occurrence
Correspond cycle stop
Inverter compressor DC Link low voltage
Correspond cycle stop
Cycle high pressure switch operation
High pressure switch operates due to abnormal high pressure
Stop applicable cycle
High voltage/ low voltage of input voltage
Voltage allowance of input voltage excess/under
Correspond cycle stop
Inverter compressor restart fail error
Initial start-up fail due to defect of a compressor
Correspond cycle stop
The phenomena from main component failure
Failure name
Occurrence condition
onds total within a hour
Remote alarm
Automatic return to a normal condition
Automatic return to a normal condition
Automatic return to a normal condition
DC voltage charge defect
Automatic return to a normal condition
Automatically return to normal condition
Automatic return to a normal condition
Automatic return to a normal condition
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Removal condition
HMI Reset button press