Daikin Siesta ATXF50A2V1B - Page 30

8 | Troubleshooting
User reference guide
30
ATXF50~71A2V1B
Daikin room air conditioner
4P513685-6C – 2019.12
Malfunction Measure
The system operates, but
cooling or heating is
insufficient.
▪ Check the airflow rate setting. Refer to
"5.4Airflow rate"[417].
▪ Check the temperature setting. Refer to "5.3.1To
start/stop operation mode and to set the
temperature"[417].
▪ Check if the airflow direction setting is
appropriate. Refer to "5.5Airflow direction"[418].
▪ 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 "7Maintenance and service"[425].
▪ 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 "5.8Econo operation"[420].
▪ 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 user
interface.
▪ Check the batteries of the user interface.
▪ 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 user interface display is
blank.
Replace the batteries of the user interface.
An error code is displayed
on the user interface.
Consult your local dealer. Refer to "8.2Solving
problems based on error codes"[431] for a
detailed list of error codes.
Other electric appliances
start to operate.
If the user interface 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).