Your Heating plus Air Conditioning system should not be causing any of the noises you hear in your home.
You should not hear Heating plus Air Conditioning systems or ductworks.
So, if you abruptly hear a noise that wasn’t there before, it’s not something to ignore. Your air vents may be whistling due to clogged airflow. Check that your vents are open and nothing is blocking them. Take immediate action if you hear dripping water from your air conditioning. The system should be turned off instantaneously and diagnosed by an Heating plus Air Conditioning serviceman. It may be that something is loose in your air conditioning if you hear rattling, and make sure there is no loose debris hitting the condenser fan on the outdoor unit. There could be a loose piece in the system or a faulty compressor if no debris is visible. Noises from inside could be coming from the air handler, but a loose screw or wobbly supply air fan is likely to cause this. A professional Heating plus Air Conditioning serviceman should address these complications instantaneously to prevent further disfigure. It could be a loose fan belt or worn bearing, or it could be the more extreme sound of a dying compressor. The most common cause of squeaking is a belt or bearing. Your comfort system may be low on refrigerant if it makes gurgling or bubbling noises. Your comfort system will likely struggle to cool your home if it’s low on refrigerant, and making loud noises, but leaking refrigerant is bad for the environment and for your health. Call an Heating plus Air Conditioning supplier instantaneously.