The answer to 'condenser making noise' is that a noisy HVAC condenser unit is a common problem that can have several potential causes. Common issues include worn-out fan motors, loose components, refrigerant leaks, or issues with the compressor. Symptoms may include grinding, screeching, or rattling noises coming from the outdoor unit.
In many cases, the solution can be as simple as tightening loose parts or replacing a fan motor. However, more serious issues like compressor problems or refrigerant leaks will likely require professional HVAC repair. It's generally best to call a licensed HVAC technician to diagnose and repair the issue, as improper maintenance or repairs can lead to further damage or safety hazards.