Oldlexy

Hey guys been going to this site a lot for help with old lexy. Here's the issue. The ac wasn't producing cold air.i would press the button and everything would go normal except its hot air. I went and got a recharge kit and got it to pressure and( it was low not out) and it instantly came on but I could bear the belt squeal. So the clutch won't engage right...
I did the home diagnostic and code #43 came up something about a air circuit door Survomotor circuit. I'm pretty sure that's inside the car. My real question is if I just replace the compressor will that do the job