Daikin CTXU25G2V1B Service Manual page 162

SiBE12-908
Troubleshooting
Check No.02
Refer to P.162
Check No.05
Refer to P.163
[
At normal temperature:
44.6Ω±10%
Service Diagnosis
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Check connector for proper
connection
Is it OK?
YES
Check No.02
Thermistor resistance check
Is it OK?
YES
Is the heater cooled
well after the power
supply turned off?
YES
Measure resistance between
heater connectors
Is the heater resistance
appropriate?
]
YES
Check No.02
Is the resistance of
humidification thermistor
within normal range?
YES
Turn on the power supply again and
run the machine in HUMID HEAT
test operation mode.
Does the humidification
rotor motor run?
YES
Does the air blow
out from the
hygroscopic fan?
YES
Does the air blow out
from the humidification
fan?
YES
Is there foreign material?*
NO
NO
NO
NO
Cool it
down.
NO
NO
NO
NO
Check No.05
Outdoor fan
system check
NO
YES
*Include inside the humidification
hose and indoor air intake filter .
Troubleshooting
Reconnect properly.
*The humidification
thermistor is exclusive for
fan outlet temperature.
Replace the thermistor.
Replace the heater unit.
Replace the thermistor.
Replace the humidification
rotor motor.
*At HUMID HEAT mode
instead of test mode, the
ON timing of the
hygroscopic fan may delay
20 min. at maximum.
To "P9" troubleshooting
Remove foreign material.
Replace the outdoor unit
PCB.
(R9457)
159