Daikin FTX20J3V1B Operation Manual page 23

Check again.
Please check again before calling a repair person.
Case
The air conditioner does not
operate.
(OPERATION lamp is off.)
Cooling (Heating) effect is poor. • Are the air filters clean?
Operation stops suddenly.
(OPERATION lamp flashes.)
An abnormal functioning
happens during operation.
• 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?
• 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 airflow 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 flashes,
call the service shop where you bought the air conditioner.
• The air conditioner may malfunction with lightning or radio
waves. Turn the breaker OFF, turn it ON again and try
operating the air conditioner with the remote controller.
Check
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