A leak in the refrigerant can happen at any point. It needs expert skills to point at an exact place.
The condenser of an AC cools down the hot refrigerant after compressing. I fit gets blocked due to dust/debris, the AC will ultimately expel hot air.
The electrical issue is hard to detect on your own. You can seek professional help for the same.
The fan's issue can occur by dust, debris, blown fuses, or electrical parts. Seek professional help to get it fixed!
Your compressor is the reason behind your AC's cool and pleasant air. If theAC is not working, then the compressor might be the reason behind it.