I started having problems with my AC unit, it's Goodman, air handler model ARUF032-00A-1B. The outside compressor model is Goodman CPLJ24-1B. Recently it started to freeze up, runs for long time. I'm afraid it's going to burn up the motor. I'm a total rookie when it comes to AC , so my question might sound stupid to you. What could be causing this? Is it my freon leaking or could there be something else? Is Goodman known for these problems? Any idea where could be the problem, could it be at the air handler or compressor? Any pointers about where the leaks usually occur? I would really appreciate your help! Thank you very much.