23
Troubleshooting
These incidents are not malfunctions.
• The following incidents do not indicate a malfunctioning air conditioner and have explanations. The air conditioner can continue
to operate.
Indoor unit
Outdoor unit
The HEAT operation stops suddenly
and a flowing sound is heard.
• The outdoor unit is taking away the frost. The HEAT
operation starts after the frost on the outdoor unit is
removed. You should wait for about 4 to 12 minutes.
Operation does not start soon.
When “ON/OFF” button was pressed soon after
operation was stopped.
When the mode was reselected.
• This is to protect the air conditioner.
You should wait for about 3 minutes.
Possible sounds.
Flowing water
• Generated because the refrigerant in the air
conditioner is flowing.
•
This is a pumping sound of the water in the air
conditioner it is heard when the water is pumped out
from the air conditioner in cooling or drying operation.
• The refrigerant flows in the air conditioner even if
the air conditioner is not working when the indoor
units in other rooms are in operation.
Blowing
• Generated when the flow of the refrigerant in the
air conditioner is switched over.
Ticking
•
Generated when the size of the air conditioner slightly
expands or shrinks as a result of temperature changes.
Whistling sound
•
Generated when refrigerant flows during defrosting operation.
Clicking sound during operation or idle time
• Generated when the refrigerant control valves or
the electrical parts operate.
Clopping sound
•
Heard from the inside of the air conditioner when the
exhaust fan is activated while the room doors are closed.
Open the window or turn off the exhaust fan.
The outdoor unit emits water or steam.
In HEAT operation
• The frost on the outdoor unit melts into water or steam when the air
conditioner is in defrost operation.
In COOL or DRY operation
• Moisture in the air condenses into water on the cool surface of outdoor unit
piping and drips.
Operating sound is loud.
• When frost forms on the heat exchanger of the outdoor unit, the operating
sound level increases slightly.
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