Daikin FTKS20D3VMW Service Manual page 279

Troubleshooting
Troubleshooting
Check No.07
Refer to P.280
Check No.09
Refer to P.281
268
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.09
Check the outdoor unit
fan or related.
Functioning
Radiation fin dirty?
Slightly dirty
Check No. 07
Check the installation condition.
YES
Check the radiation fin
temperature.
Above 103˚C?
YES
Malfunctioning
Too dirty
SiENBE12-713
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.
(R5148)
Service Diagnosis