Daikin FVXS25FV1B Service Manual page 101

Troubleshooting
Troubleshooting
Check No.06
Refer to P.139
90
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Check the air passage.
Is there any
short-circuit?
NO
Check the intake air filter.
Is it very dirty?
NO
Check the dust accumulation on
the indoor unit heat exchanger.
Is it very dirty?
NO
Check No. 06
Indoor unit heat exchanger
thermistor check
Does it conform to
the thermistor characteristic
chart?
NO
YES
YES
YES
YES
SiBE06-708
Provide sufficient air passage.
Clean the air filter.
Clean the heat exchanger.
See the diagnosis for "F6"
Replace the thermistor
(replace the indoor unit PCB).
(R6938)
Service Diagnosis