19
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Check again
Please check again before calling a repair person.
Case
The air conditioner does not
operate.
(OPERATION lamp is off)
Cooling or Heating effect is
poor.
Operation stops suddenly.
(OPERATION lamp blinks.)
An abnormal functioning
happens during operation.
Check
●
Hasn’t a breaker turned OFF or a fuse blown?
●
Isn’t it a power failure?
●
Are batteries set in the remote controller?
●
Is the timer setting correct?
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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?
●
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
controller. If the lamp still blinks, 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 blink.
Moreover, when the operation mode is in “AUTO”, set all indoor unit opera-
tion modes to “COOL” or “HEAT” for a moment and check again that the
lamps are normal.
If the lamps stop blinking after the above steps, there is no malfunction.
(See page 12.)
●
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 controller.
Trouble Shooting
