I have a comformaker AC unit model nac042gkc3. My wife turned on the AC today, but the house did not cool down. When I returned home this evening I had her turn off the thermostat and I went to look at the ac unit. The fan did not turn when power was sent to the unit. The fan was warm to the touch. The blades spin freely when the power is off. I have a voltmeter, but am not very good with it. Does the heat of the fan motor indicate a damaged unit? Could the compressor have been damaged if the unit was on all day and trying to run? Is it possible to repair the motor, or does it have to be replaced? Any help is appreciated.