Daikin CTXU25G2V1B Service Manual page 114

SiBE12-908
Troubleshooting
Service Diagnosis
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Confirm if the conditions where
HUMID HEAT operation can run
are satisfied. (Refer to page 10)
Are the conditions
satisfied?
YES
Is the priority room set?
NO
Is the other unit
in Humid HEAT operation
or FRESH AIR SUPPLY
VENTILATION?
NO
Does
the each length of
humidification hose exceed
the specified length?
Under specified length.
Does
the set hose length
match with the each field
hose length?
It matches.
Is the humidification filter
blocked?
Not blocked.
Any breakage
or blockage on humidification
hose?
NO
Is the
humidification hose
proper?
YES
Does the
outdoor unit suck the
exhausted air again by
short-circuit?
NO
How
many times are the room
ventilated?
Small in number(highly packed house or apartments)
Is the
ceiling too high for
the floor size?
NO
Continued to the next page
NO
YES
Is it the room of priority
setting?
YES
YES
Exceeds.
It does not match.
Blocked.
YES
NO
YES
Many (screens, consecutives room )
High (wellhole, high ceiling)
Troubleshooting
Explain the conditions of
HUMID HEAT operation to
the user.
NO
Explain to the user that the
room of priority setting is
humidified prior to the other
room.
Explain to the user that
HUMID HEAT operation or
FRESH AIR SUPPLY
VENTILATION can not be
performed simultaneously
in the both 2 rooms.
Correct it within the
specified length.
Explain it to the user.
Reset the hose length by
remote controller.
Clean the humidification
filter.
Repair breakage or remove
blockage.
Use the proper hose
specified by DAIKIN.
Improve so as not to get
short-circuit.
Explain to the user.
Explain to the user.
(R9682)
111