Daikin FTXS20J2V1B Operation Manual page 40

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 defrosting operation.
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?
Remote controller does not work
properly.
■ No remote controller signals are
displayed.
■ The remote controller sensitivity is low.
■ The display is low in contrast or blacked
out.
■ The display runs out of control.
• The batteries are dying and the remote
controller is malfunctioning. Replace all the
batteries with new, size AAA.LR03 (alkaline).
For details, refer to "To set the batteries" of
this manual. (page 7.)
HEAT operation cannot be
selected, even though the unit is
heat pump model.
• Slide the DIP switch to the left as shown in
the illustration so that the HEAT operation
can be selected with the "MODE" button.
DIP switch
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