With any forced air heating or cooling system, there’s going to be sounds associated with air flowing through the duct work, in fact, it’s one of the main reasons people opt for the quieter radiant heat in the winter. Some units give off a light whirl that is ignored as background noise after a homeowner becomes familiar with it, while others sound like an Airbus A350 preparing to leave the runway.
While the sound of airflow is a necessary evil with a forced air-conditioner, there are some other sounds that are an indicator that something may be malfunctioning within the system. One such racket is a persistent clicking noise that may develop within the air-conditioner over time. While the clicking noise isn’t as sinister as a loud banging or the crackling of fire coming from your utility room, it’s still important to be checked out for one of these main causes: