During Operation - Daikin FTXLS25K2V1B Operation Manual

Troubleshooting
• Troubleshooting measures are classified into the following two types on a remedial basis.
Take an appropriate measure according to the symptom.
Not trouble
• These cases are not troubles.
Check
• Please check again before calling a
repair person.
The air conditioner does not operate.
(OPERATION lamp is off.)
• 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?
Cooling (Heating) effect is poor.
• 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 airflow rate and the airflow direction set
appropriately?
An abnormal functioning happens

during operation.

• 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.
35
Operation stopped suddenly.
(OPERATION lamp flashes.)
• Are the air filters clean?
Clean the air filters.
• Is there anything to block the air inlet or the outlet of
the indoor and the outdoor units?
• Turn the bleaker off and take all obstacles away. 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.
Operation stopped suddenly.
(OPERATION lamp is on.)
• For system protection, the air conditioner may stop
operating on a sudden large voltage fluctuation. It
automatically resumes operation in about 3 minutes.
Mist comes out of the indoor unit.
• This happens when the air in the room is cooled into
mist by the cold airflow during COOL operation.
• This is because the air in the room is cooled by the
heat exchanger and becomes mist during defrost
operation.