Troubleshooting - Daikin FDXS09LVJU Operation Manual

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
The HEAT operation stops suddenly
and a fl owing 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.
Outdoor unit
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.
23
Possible sounds.
Flowing water
• Generated because the refrigerant in the air
conditioner is fl owing.
• 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 fl ows 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 fl ow 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 fl ows 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.