BEFORE CALLING FOR SERVICE
The following conditions do not denote equipment malfunctions
UNIT DOES NOT OPERATESWISHING NOISE
The unit will not operate if it is turned onThe soft, swishing noise is the sound of
immediately after it is turned off. The unit will notthe refrigerant flowing inside the unit.
operate immediately after the mode is changed.
This is to protect the internal mechanisms. Wait 3
minutes before operating the unit.WATER VAPOUR
Y In the COOL and DRY operation, wa-
ter vapour can sometimes be seen at
UNIT DOES NOT SEND OUT WARM AIRthe air outlet due to the difference
(Models AY-A07CR/AY-A09CR/AY-A12CR)
The unit is preheating or de-icing.between the room air temperature and
the air discharged by the unit.
Y In the HEAT operation, water vapour
ODORSmay flow out of the outdoor unit dur-
ing de-icing. (Only in models AY-
Carpet and furniture odors that entered into theA07CR/AY-A09CR/AY-A12CR)
unit and the air conditioner's inner component
odors at the early stage of installation may be
sent out from the unit.
CRACKING NOISE
The unit may produce a cracking noise. This sound
is generated by the friction of the front panel and
other components expanding or connecting due to
a temperature change.
If the unit appears to be malfunctioning, check the following points before calling for
service.
IF THE UNIT FAILS TO OPERATE
Check to see if the circuit breaker has tripped or the fuse has blown.
IF THE UNIT FAILS TO COOL (OR HEAT) THE ROOM EFFECTIVELY
Check the filters. If dirty,Check the outdoor unit toCheck the thermostat is
clean them.make sure nothing is blockingproper setting.
the air inlet or outlet.
Make sure windows andA large number of people inCheck whether any heat-
doors are closed tightly.the room can prevent the unitgenerating appliances are
from achieving the desiredoperating in the room.
temperature.
IF THE UNIT FAILS TO RECEIVE THE REMOTE CONTROL SIGNAL
Check whether the remoteTry to send the signal againCheck whether the remote
control batteries have be-with the remote controlcontrol batteries are in-
come old and weak.pointed properly towards thestalled with the polarities
unitOs signal receiver window.properly aligned.
Please call for service when OPERATION Lamp and TIMER Lamp on the indicator panel blink.
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ACEC
