Symptoms That Are Not System Malfunctions; Symptom: A Sound Like Water Flowing Is Heard; Symptom: A Blowing Sound Is Heard; Symptom: A Ticking Sound Is Heard - Daikin FTXF50D2V1B User Reference Manual

8 | Troubleshooting

8.1 Symptoms that are NOT system malfunctions

8.1.1 Symptom: A sound like water flowing is heard

8.1.2 Symptom: A blowing sound is heard

8.1.3 Symptom: A ticking sound is heard

8.1.4 Symptom: A whistling sound is heard

8.1.5 Symptom: A clicking sound during operation or idle time is heard

8.1.6 Symptom: A clapping sound is heard

8.1.7 Symptom: White mist comes out of a unit (Indoor unit)

8.1.8 Symptom: The units can give off odours

User reference guide
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The following symptoms are NOT system malfunctions:
▪ 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.
This sound is generated when the direction of the refrigerant flow is changed (e.g.
when switching from cooling to heating).
This sound is generated when the unit slightly expands or contracts with changes in
temperature.
This sound is generated by the refrigerant flowing during defrost operation.
This sound is generated when the refrigerant control valves or electrical parts
operate.
This sound is generated when an external device sucks air out of the room (e.g.
exhaust fan, extractor hood) while the doors and windows in the room are closed.
Open the doors or windows, or turn off the device.
▪ When humidity is high during cooling operation (in oily and dusty places). If the
interior of an indoor unit is extremely contaminated, the temperature
distribution inside a room becomes uneven. It is necessary to clean the interior
of the indoor unit. Ask your dealer for details on cleaning the unit. This operation
requires a qualified service person.
▪ When the air conditioner is changed over to heating operation after defrost
operation. Moisture generated by defrost becomes steam and exits.
The unit can absorb the smell of rooms, furniture, cigarettes, etc., and then emit it
again.
FTXF50~71D2V1B + FTXF50~71A2V1B
Daikin room air conditioner
4P513685-9E – 2021.07