Daikin FTKS20CVMB Service Manual page 127

Troubleshooting
Troubleshooting
Check No.6
Refer to P.126
Check No.7
Refer to P.127
Check No.9
Refer to P.128
118
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Turn off the power and turn it on
again to get the system started.
Error displayed again?
NO
Check No. 9
Check the outdoor unit
fan or related.
Functioning
Radiation fin dirty?
Slightly dirty
Check No. 7
Check the installation condition.
«
: value for (A)RK(X)H, R(Y)N models
YES
Check No. 6
Check the thermistor resistance
value.
l
Fin thermistor
Check the radiation fin
temperature.
Thermistor as
specified in its characteristic
chart?
YES
Above 90˚C(100˚C
YES
Malfunctioning
Too dirty
NO
Replace the fin thermistor.
NO
«
)? Check the power transistor
and fin for looseness. If
they are found to be fit
tightly, replace the PCB or
the power transistor.
Replace the fan motor.
Correct the connectors and
fan motor leads.
Replace the outdoor unit
PCB.
Clean up the radiation fin.
Service Diagnosis
SiBE04-401
(R4017)