LG · Room air conditioner
CH04 — meaning and next steps
LG CH04 means a covered window or portable air conditioner has accumulated condensate that needs to be drained.
Published guidance
Room air conditioners error codes
Published meanings retain their official model and market scope.
2 of 2 published codes. Symptom matches help you find relevant guidance; they do not identify a fault without the displayed code and model.
LG · Room air conditioner
FL — meaning and next steps
LG FL is a model-dependent alternate display for the CH04 condensate condition on covered window or portable air conditioners.