Sharp AE-A07CR, Operation Manual

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IF THE UNIT FAILS TO RECEIVE THE REMOTE CONTROL SIGNAL
Check whether the remote
control batteries have be-
come old and weak. Try to send the signal again
with the remote control
pointed properly towards the
unit’s signal receiver window. Check whether the remote
control batteries are in-
stalled with the polarities
properly aligned.
E-16
BEFORE CALLING FOR SERVICE
The following conditions do not denote equipment malfunctions
UNIT DOES NOT OPERATE
The unit will not operate if it is turned on
immediately after it is turned off. The unit will not
operate immediately after the mode is changed.
This is to protect the internal mechanisms. Wait 3
minutes before operating the unit.
UNIT DOES NOT SEND OUT WARM AIR
(Models AY-A07CR/AY-A09CR/AY-A12CR)
The unit is preheating or de-icing.
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,
clean them.
Check the outdoor unit to
make sure nothing is blocking
the air inlet or outlet. Check the thermostat is
proper setting.
Make sure windows and
doors are closed tightly.
A large number of people in
the room can prevent the unit
from achieving the desired
temperature.
Check whether any heat-
generating appliances are
operating in the room.
ODORS
Carpet and furniture odors that entered into the
unit and the air conditioner's inner component
odors at the early stage of installation may be
sent out from the unit.
SWISHING NOISE
The soft, swishing noise is the sound of
the refrigerant flowing inside the unit.
WATER VAPOUR
• In the COOL and DRY operation, wa-
ter vapour can sometimes be seen at
the air outlet due to the difference
between the room air temperature and
the air discharged by the unit.
• In the HEAT operation, water vapour
may flow out of the outdoor unit dur-
ing de-icing. (Only in models AY-
A07CR/AY-A09CR/AY-A12CR)
Please call for service when OPERATION Lamp and TIMER Lamp on the indicator panel blink.