Daikin FTXG25CVMAW Service Manual page 107

Troubleshooting
Troubleshooting
Check No.6
Refer to P.106
J3 :
J6 :
H9 :
98
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Turn on the power again.
Error displayed again
on remote controller?
YES
Connector or thermistor
disconnected?
NO
Check No. 6
Check the thermistor resistance
value.
Normal?
YES
Check No. 6
Check the indoor heat exchanger
thermistor resistance value in the
heating mode.
Indoor
heat exchanger thermistor
functioning?
YES
Discharge pipe thermistor
Outdoor heat exchanger thermistor
Outdoor air temperature thermistor
NO
YES
NO
NO
Si04-402A
Reconnect.
Reconnect.
Replace defective one(s) of
the following thermistors.
l
Discharge pipe thermistor
l
Outdoor heat exchanger
thermistor
l
Outdoor air thermistor
Replace the following
thermistor.
l
Indoor heat exchanger
thermistor
Replace the outdoor unit
PCB. (Replace the indoor
unit PCB.)
(R4093)
Service Diagnosis