What do the indicators and lights of the AC Cortina Silent 12K mean?

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Accepted Answer

Operating mode indicators

Cooling mode - Displays when the air conditioning is operating in cooling mode to lower the room temperature
Dehumidification mode - Displays when the dehumidification mode is active (the fan operates only at low speed)
Fan mode - Displays when only the fan is operating (the compressor is off)
Energy saving mode - Displays when the energy saving mode is engaged (cyclical operation of the fan after reaching the set temperature)

Function and connectivity indicators

WiFi - Indicates that the WiFi connection is active for the Smart Home function
Automatic oscillation - Displays when the automatic air swing function is activated
Automatic cleaning - Displays when the self-cleaning mode is active (the unit cleans internally for 3 minutes before shutting down)
Sleep mode - Displays when the night mode is activated (the unit does not disturb your sleep)
Timer - Displays when the timer function is programmed (can be set to start or stop the unit)

Status and information indicators

Fan speed - Displays the current level of fan speed (low, medium, or high)
Temperature - Displays the current temperature measured in the room in Celsius or Fahrenheit
Full water tank - Warning light indicating that the condensation tank is full and must be emptied immediately (the unit stops automatically)

Error codes and protection messages

FL - The water tank in the chassis is full. Empty the condensate and restart the unit.
CH01 - Ambient temperature sensor failure. Check the ambient temperature sensor and associated circuits.
CH02 - Tube temperature sensor failure. Check the tube temperature sensor and associated circuits.
E4 - Anti-freeze protection activated automatically. Functions automatically restore once the anti-freeze protection is finished. No buttons are active except the power button.

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