Daikin CTXA15A2V1BW, User Reference Manual

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8 | Troubleshooting
User reference guide
48
FTXA25~50(A)(B)2V1B(W)(S)(T)(B)
Daikin room air conditioner
4P518786-1F – 2020.05
Malfunction Measure
The unit does NOT receive
signals from the user
interface. ▪ Check the batteries of the user interface. Refer to
"4.3 To insert the batteries" [
4
14].
▪ 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
49] 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).
8.1 Symptoms that are NOT system malfunctions
The following symptoms are NOT system malfunctions:
8.1.1 Symptom: A sound like water flowing is heard
▪ This sound is caused by the refrigerant flowing in the unit.
▪ This sound may be generated when water is flowing away from the unit during
cooling or drying operation.
8.1.2 Symptom: A blowing sound is heard
This sound is generated when the direction of the refrigerant flow is changed (e.g.
when switching from cooling to heating).
8.1.3 Symptom: A ticking sound is heard
This sound is generated when the unit slightly expands or contracts with changes in
temperature.
8.1.4 Symptom: A whistling sound is heard
This sound is generated by the refrigerant flowing during defrost operation.
8.1.5 Symptom: A clicking sound during operation or idle time is heard
This sound is generated when the refrigerant control valves or electrical parts
operate.