Unusual noises coming from your AC system, such as banging, hissing, or squealing sounds, can be indicative of underlying problems. These noises might suggest issues like loose components, a worn-out fan belt, or debris obstructing the unit. Ignoring these sounds can lead to more significant problems down the line. It's advisable to turn off your AC and contact Warner Super Service, Inc for a thorough inspection and prompt repairs to prevent further damage and ensure the continued efficiency of your cooling system.