I have a trane split unit A/C wall mounted. The A/C works fine but I noticed that when the unit is turned off and then I go to turn it on the next day, I can't hear the fan blower running but the unit is powered on. So, I shut the unit off and remove the cover over the fan blower and notice that the fan blower is stuck so I give it a little turn and it now moves freely. I replace the cover and turn the unit on and now I can hear the fan blower working.
This sticking of the fan blower motor happens each time I turn the unit off.
Thanks
DST

My best guess would be the motor is starting to go bad. Does it have holes on each end of the shaft for oil? I would try that first.