workin on an apac unit indoor model S0321hcsaa,
with three phase belt driven indoor fan motor,rated amps 3.6 running at 2.9 amps .continously blowin fuses two sometimes all three .have meggered motor windin and supply cables all ok .overload set at 4 amps. voltage balanced on all windings .resistance winding balanced all 6.8ohms.

cld I be missing something .\
this happens after some months .