LG ACHH Series Manual page 53

Failure code
CHxx113
CHxx114
CHxx115
CHxx145
CHxx150
CHxx151
Corresponding cycle stopped
When the load outlet water temperature is maintained at 3°C or below after the compressor started or if
CHxx180
Control when occurring
Liquid pipe temperature sensor error
Liquid temperature sensor is short/open
Stop applicable cycle
Sub cooling Suction temperature sensor error
Sub cooling Suction temperature sensor is short/open
Stop applicable cycle
Sub cooling outlet pipe temperature sensor error
Sub cooling outlet pipe temperature sensor Short/Open
Correspond cycle stop
Main Board - External Board communication Error
Main Board - External Board communication Error
Stop applicable cycle
Liquid Compression Prevention Error
Liquid Compression Prevention Error
Stop applicable cycle
Plate type heat exchanger frozen
the low Pressure is maintained at less than 660kPA after the compressor started
Stop applicable cycle
The phenomena from main component failure
Failure name
Occurrence condition
Automatically return to normal condition
Automatically return to normal condition
Automatic return to a normal condition
Automatically return to normal condition
Automatically return to normal condition
4-way valve switching error
Mode switching failed
Automatic return to the normal condition
Automatically return to normal condition
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Removal condition