Daikin FTXS09HVJU Service Manual page 142

Troubleshooting
Troubleshooting
Check No.06
Refer to P.146
Check No.07
Refer to P.147
Check No.09
Refer to P.148
Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution
the connector, or parts damage may occur.
Turn off the power and turn it on
again.
Error again or
outdoor unit fan activated?
NO
Check No. 09
Check the outdoor unit fan or
related.
Functioning
Radiation fin
dirty?
Slightly dirty
Check No. 07
Check the installation condition.
WARNING
To cool down the electricals, the
outdoor unit fan gets started when
the radiation fin temperature rises
above 176°F (80°C) and stops itself
when it drops below 158°F (70°C)
YES
Check No. 06
Check the thermistor resistance
value.
Fin thermistor
Check the radiation fin
temperature.
Thermistor as
specified in its characteristic
chart?
YES
Above 176°F
(80°C)?
YES
Malfunctioning
Too dirty
SiUS04-904
NO
Replace the fin thermistor.
NO
Replace the outdoor unit
PCB.
Replace the fan motor.
Correct the connectors and
fan motor leads.
Replace the outdoor unit
PCB.
Clean up the radiation fin.
(R10493)
131