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Troubleshooting
User reference guide
37
FTXTP-M_FTXTP-N
Daikin room air conditioners
4P728152-3 – 2023.03
Malfunction
Measure
The system operates, but
cooling or heating is
insufficient.
▪
Check the airflow rate setting. Refer to
19].
▪
Check the temperature setting. Refer to
start/stop operation mode and to set the
temperature"
▪
Check if the airflow direction setting is
appropriate. Refer to
▪
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.
The system operates, but
cooling or 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.
▪
The unit may be in defrost operation.
The system operates, but
cooling or heating is
insufficient (air is blown
from the unit).
▪
Check if the air filters are clogged. Clean the air
filters. See
▪
Check for open doors or windows. Close doors and
windows to prevent wind from coming in.
▪
Check if the unit operates in Econo operation.
Refer to
▪
Check if there is any furniture directly under or
next to the indoor unit. Move the furniture.
An abnormal function
happens during operation.
The air conditioner may malfunction because of
lightning or radio waves. Turn the breaker OFF and
back ON.
The unit does NOT receive
signals from the wireless
remote control.
▪
Check the batteries of the wireless remote control.
▪
Make sure that the transmitter is NOT exposed to
direct sunlight.
▪
Check if there are any electronic starter type
fluorescent lamps in the room. Contact your
dealer.
The wireless remote
control display is blank.
Replace the batteries of the wireless remote control.
An error code is displayed
on the wireless remote
control.
Consult your local dealer. Refer to
problems based on error codes"
39] for a
detailed list of error codes.
Other electric appliances
start to operate.
If the wireless remote control signals operate other
electric appliances, move the other appliances away,
and contact your dealer.
If after checking all above items, it is impossible to fix the problem yourself, contact
your installer and state the symptoms, the complete model name of the unit (with
manufacturing number if possible) and the installation date (possibly listed on the
warranty card).