English
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White mist comes out of the unit
Indoor unit
When humidity is high during cooling operation.
●
If the interior of indoor unit is extremely contaminated, the temperature distribution inside a room becomes uneven. It is necessary to clean the
interior of the indoor unit. Ask your Daikin dealer for details on cleaning the unit. This operation requires a quali
fi
ed service person.
Immediately after the cooling operation stops and if the room temperature and humidity are low.
●
This is because warm refrigerant gas
fl
ows back into the indoor unit and generates steam.
Outside unit
When the system is changed over to heating operation after defrost operation.
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Moisture generated by defrost becomes steam and is exhausted.
Noise of air conditioners
Indoor unit
A “zeen” sound is heard immediately after the power supply is turned on.
●
The electronic expansion valve inside an indoor unit starts working and makes the noise. Its volume will reduce in about 1 minute.
A continuous low “shah” sound is heard when the system is in cooling operation or at a stop.
●
When the drain pump (an optional accessory) is in operation, this noise is heard.
A “pishi-pishi” squeaking sound is heard when the system stops after heating operation.
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Expansion and contraction of plastic parts caused by temperature change make this noise.
A low “sah”, “choro-choro” sound is heard while the indoor unit is stopped.
●
When the other indoor unit is in operation, this noise is heard. In order to prevent oil and refrigerant from remaining in the system, a small amount of
refrigerant is kept
fl
owing.
Outside unit
When the tone of operating noise changes.
●
This noise is caused by the change of frequency.
Indoor unit, outside unit
A continuous low hissing sound is heard when the system is in cooling or defrost operation.
●
This is the sound of refrigerant gas
fl
owing through both indoor and outside units.
A hissing sound which is heard at the start or immediately after stopping operation or defrost operation.
●
This is the noise of refrigerant caused by
fl
ow stop or
fl
ow change.
Dust comes out of the unit
When the unit is used after stopping for a long time.
●
This is because dust has gotten into the unit.
The units can give off odours
During operation.
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The unit can absorb the smell of rooms, furniture, cigarettes, etc., and then emit it again.
The outside unit fan does not rotate
During operation.
●
The speed of the fan is controlled in order to optimize product operation.
The compressor or fan in the outside unit does not stop
This is to prevent oil and refrigerant from remaining in the compressor. The unit will stop after 5 to 10 minutes.
●
The inside of outside unit is warm even when the unit has stopped
This is because the crankcase heater is warming the compressor so that the compressor can start smoothly.
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01_EN_3P215731-9N.indd 35
01_EN_3P215731-9N.indd 35
11/8/2010 8:39:27 PM
11/8/2010 8:39:27 PM
