Table of Contents
Instruction
Check again.
Please check again before calling a repair person.
The air conditioner does not
operate.
(OPERATION lamp is off)
Cooling (Heating) effect is poor.
Operation stops suddenly.
(OPERATION lamp flashes.)
An abnormal functioning happens
during operation.
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Case
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Check
Hasn't a breaker turned OFF or a fuse blown?
Isn't it a power failure?
Are batteries set in the remote control?
Is the timer setting correct?
Are the air filters clean?
Is there anything to block the air inlet or the outlet of the
indoor and the outdoor units?
Is the temperature setting appropriate?
Are the windows and doors closed?
Are the air flow rate and the air direction set
appropriately?
Is the unit set to the INTELLIGENT EYE mode?
Are the air filters clean?
Is there anything to block the air inlet or the outlet of the
indoor and the outdoor units?
Clean the air filters or take all obstacles away and turn
the breaker OFF. Then turn it ON again and try
operating the air conditioner with the remote control. If
the lamp still flashes, call the service shop where you
bought the air conditioner.
Are operation modes all the same for indoor units
connected to outdoor units in the multi system?
If not, set all indoor units to the same operation mode
and confirm that the lamps flash.
Moreover, when the operation mode is in "AUTO", set all
indoor unit operation modes to "COOL" or "HEAT" for a
moment and check again that the lamps are normal.
If the lamps stop flashing after the above steps, there is
no malfunction.
The air conditioner may malfunction with lightening or
radio waves. Turn the breaker OFF, turn it ON again and
try operating the air conditioner with the remote control.
SiE12-411
System Configuration
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Troubleshooting
