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PLEASE CHECK THE FOLLOWING POINTS EVERY EITHER HALFYEARLY ORYEARLY. CONTACTYOUR
SALES AGENT SHOULD YOU NEED ANY HELP.
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2
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If the earth line is disconnected orfaulty, unit failure orelectric
shock hazard may result.
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It could collapse orfall, causing injury.
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¥ Do the batteries need replacement?
¥ Is the polarity of the inserted batteries correct?
¥ Is the airfilterblocked with dust?
¥ Is the set temperature suitable?
¥ Have the top and bottom air deflectors been adjusted to their correct
positions according to the operation mode selected?
¥ Are the airinlets orairoutlets of indoorand outdoorunits blocked?
¥ Is the fan speed ÒLOWÓ?
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¥ Is the fuse all right?
¥ Is the voltage extremely high or low?
¥ Is the circuit breaker ÒONÓ?
¥ Is the setting of operation mode different from other indoor units?
When it does not operate.
When it does not cool well.
When it does not heat well.
The following phenomena do not indicate unit failure.
<Operation start>
The unit is preparing to blow warm air. Please wait.
<In operation>
The outdoorunit is defrosting. Please wait.
Hissing orfizzy sounds
Refrigerant flow noise in the pipe or valve sound generated when flow rate is
adjusted.
Squeaking noise
Noise generated when the unit expands or contracts due to temperature
changes.
Rustling noise
Noise generated with the indoor unit fanÕs rpm changing such as operation start
times.
Clicking noise
Noise of the motorized valve when the unit is switched on.
Perking noise
Noise of the ventilation fan sucking in air present in the drain hose and blowing out
dehumidifying waterthat had accumulated in the condensed watercollector. For
details, consult yoursales agent.
Changing operation noise
Operation noise changes due to power variations according to room temperature
changes.
Mist emission
Mist is generated as the air within the room is suddenly cooled by conditioned air.
Duringheating,theoperationindicator
blinks and airblow stops
If the remote controller is not
transmitting a signal.
(Remote controller display is
dim orblank.)
¥ If the unit still fails to operate
normally after performing the
above inspections, turn the
circuit breaker off and contact
yoursales agent immediately.
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¥ The circuit breaker switches off or the fuse blows
frequently.
¥ The switch operation is not stable.
¥ Foreign matter or water accidentally enters the unit interior.
¥ The powercord gets excessively hot orits insulation is torn or
stripped.
¥ TIMER lamp on the indoorunit display blinks.
As the nature of the failure can be identified by the blinking cycle,
check the blinking cycle before turning off the circuit breaker.
¥ Please contact yoursales agent immediately if the airconditionerstill fails to operate normally afterthe above
inspections. Inform your agent of the model of your unit, production number, date of installation. Please also
inform him regarding the fault.
Please note:
On switching on the equipment, particularly when the room light is dimmed, a slight brightness fluctuation
may occur. This is of no consequence.
The conditions of the local Power Supply Companies are to be observed.
¥ In quiet operation or stopping the running, the following phenomena may
occasionally occur, but they are not abnormal for the operation.
(1) Slight flowing noise of refrigerant in the refrigerating cycle.
(2) Slight rubbing noise from the fan casing which is cooled and then gradually
warmed as operation stops.
¥ The odorwill possibly be emitted from the room airconditionerbecause the
various odor, emitted by smoke, foodstuffs, cosmetics and so on, sticks to it. So
please clean the air filter and the evaporator regularly to reduce the odor.
Steam emitted from the outdoor unit Water generated during defrosting operation evaporates and steam is emitted.
Odors
Caused as the smells and particles of smoke, food, cosmetics, etc. present in room
airbecome attached the unit and blown off into the room again.
Defrosting is underway (as the heating operation is stopped, the microcomputer
checks frost accumulated in the indoor unit and instructs the unit to perform
automatic defrosting if necessary).
Shows preheating or defrosting operation is underway.
As the protective circuit or preheat sensor operates when unit operation is stopped
during preheating and then restarted, or when operation mode is switched from
cooling to heating, the lamp continues to blink.
ActualroomtemperaturemaydeviateslightlyfromtheremotecontrollerÕstemperature
setting depending on the numberof people in the room, indoororoutdoorconditions
when the airconditioneris used formore than one room at the same time.
The outdoorunit continues to operate
even if operation is stopped.
Does not reach the temperature
setting.
The OPERATION lamp is blinking.
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