LG ACHH Series Manual page 54

The phenomena from main component failure
Failure code
CHxx193
CHxx194
Control during error
Surge in fan board heat emitting plate temperature
Surge in fan board heat sink temperature
Stop applicable cycle
Fan board heat emitting plate temperature sensor error
Fan board heat emitting plate temperature sensor is short/open
Stop applicable cycle
Failure name
Occurrence condition
Automatically return to normal condition
Automatically return to normal condition
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Cancel condition