Daikin fault codes

[koy]

Possible reasons :
1) Faulty fan motor.
2) Faulty indoor unit's P.C.B.
3) Fan motor cable broken or not connected (S1 connector on the P.C.B)..

Hmm, the unit once switched on calls for the outdoor unit and starts to cool/heat with compressor running and the indoor coil cooling/heating but indoor fan motor dosn't start, 60secs later unit shuts down to protect unit.

Dose this still sound like a PCB Fault and how can I make a check for sure? How can I check the PCB?