2 | Troubleshooting
Service manual
40
RXM20~71R + ARXM25~71R + FTXM20~71R + ATXM25~50R +
FVXM25~50A
Split New Perfera R32
ESIE20-11 – 2021.01
2.6.10 Unit discharges white mist
Check Detail
Check installation conditions. ▪ Humid site.
▪ Dirty site.
▪ Oil mist.
Check installation conditions. Dirty heat exchanger.
Air filter. Dirty air filter.
Fan motor. Defective fan motor.
2.6.11 Humidifying problem
Check Detail
Check the installation conditions. ▪ Insufficient heat insulation of duct.
▪ Ceiling too high for the floor size.
▪ Short circuit air flow caused by
insufficient installation space.
Check the installation. ▪ Is the proper humidification hose,
specified by Daikin, used?
▪ Breakage or blockage of the
humidification hose.
▪ Is the length of the humidification
hose correct (within specified length)?
▪ Is setting correct for the
humidification hose length?
Check the outdoor temperature and
humidity.
In case of extremely low outdoor
temperature or extremely low humidity,
the air outlet must be set at the height
of 1,8m.
Check the temperature setting. Is the set temperature too high?
Check the ventilation timing. Is the room ventilated too often?
Check the air filter. Is the air filter clogged?
2.6.12 Swing flap does not operate
Symptom Check Detail
Swing flap does not
operate
Check swing flap motor Some functions can force
the swing flap into a fixed
position, although swing
mode is selected on the
remote controller. This is
not a unit error, but a
control function to
prevent draft to the
customer.
Check indoor unit PCB Connector connection
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