Goodman split unit that heats instead of cools

Hi, Could be a run capacitor on the fan motor. They usually swell up and or leak when they go bad. If not, the only real way to test them it with a specific capacitor tester. A new capacitor would be cheaper. Make sure that the outside unit is disconnected from power before opening it up, try to spin the fan blade by hand. If it doesn't spin freely it may need oiled if possible. See above solution. Your problem is the fan motor though so if this don't do it, It will have to be replaced. If this helps, Please rate my solution.
Thanks,
kstfas

Try this. Turn off the system and remove and inspect the air filter in the air handler for a restriction. If you find no restriction, go outside and turn off the outside unit by shutting off the disconnect switch. Turn on the system and keep the inside unit blowing for 3 hours. Then go back outside and switch on the outside unit. If the air conditioner blows cold air again it means that the inside coil is freezing up due to lack of refrigerant or something else. The slow moving outside fan could indicate that it is bound up and going off on thermal overload. Listen to see if the motor makes a moaning sound. Lubricate it if you can get to any of the oil holes in located in the end caps of the motor. At any rate you may need to call a technician.

Good Luck