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Troubleshooting
User reference guide
52
CTXA-C(W)(B)(S) + FTXA-C(W)(B)(S)
Daikin room air conditioner
4P518786-10K – 2023.05
Malfunction
Measure
The flaps do NOT start to
swing immediately.
The indoor unit is adjusting the position of the flaps.
The flaps will start moving soon.
Operation does NOT start
soon.
In case the ON/OFF button was pressed right after
operation was stopped or if the mode was changed.
Operation will start after 3 minutes to protect the
system.
The system operates, but
cooling or heating is
insufficient.
▪
Check the airflow rate setting. Refer to
▪
Check the temperature setting. Refer to
start/stop operation mode and to set the
temperature"
22].
▪
Check if the airflow direction setting is
appropriate. Refer to
23].
▪
Check if the air inlet or outlet of the outdoor or
indoor unit is NOT blocked by obstacles. Remove
any obstacles and make sure the air can flow
freely.
▪
Check if the air filters are clogged. Clean the air
filters.
Refer
to
▪
Check for open doors or windows. Close doors and
windows to prevent wind from coming in.
▪
Check if the unit operates in Econo or Outdoor
unit quiet operation. Refer to
▪
Check if there is any furniture directly under or
next to the indoor unit. Move the furniture.
The system operates, but
heating is insufficient (air is
NOT blown from the unit).
▪
The air conditioner may be warming up for heating
operation. Wait for 1 to 4 minutes.
▪
If a flowing sound is heard, the outdoor unit may
be in defrost operation. Wait for 4 to 12 minutes.
The front panel does NOT
open.
Check for the obstacles and try to open the front
panel using the user interface. Refer to
45].
The ON/OFF timer does
NOT operate according to
the settings.
▪
Check if the Weekly timer and ON/OFF timer are
set to the same time. Change or deactivate the
setting.
Refer
to
29] and
▪
Check if the clock and the day of the week are set
correctly. Refer to
Heating operation CANNOT
be selected.
Check if the user interface's jumper J8 has NOT been
cut.
J8
An abnormal function
happens during operation.
The air conditioner may malfunction because of
lightning or radio waves. Turn the breaker OFF and
back ON.
