Recently I have had trouble with my a/c... my blower goes off and on... I replaced the capacitor and thermostat but still doing the same thing. I have a trane indoor unit

Does the blower stay on when calling for heat?

I haven't tested it but it is 92 degrees in the house now.

Ok, if you have a multimeter you can test the leads to the motor, see if it still has voltage when the motor stops, if it does, you will need a new motor. Please let us know what you find and we will go from there. Good luck.