Daikin ROOM AIR CONDITIONERS Operation Manual page 16

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Trouble Shooting
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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.
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Check
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Hasn't a breaker turned OFF or a fuse blown?
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Isn't it a power failure?
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Are batteries set in the remote controller?
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Is the address switch in the remote controller set
correctly?
(See page 6 "Preparation Before Operation".)
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Is the timer setting correct?
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Are the air filters clean?
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Is there anything to block the air inlet or the outlet of the
indoor and the outdoor units?
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Is the temperature setting appropriate?
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Are the windows and doors closed?
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Are the air flow rate and the air direction set
appropriately?
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Is the unit set to the Intelligent Eye mode?
(See page 13.)
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Are the air filters clean?
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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.
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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 operation 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 8.)
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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.
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17
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