The furnace in your Marion, NC, home should operate calmly and quietly. Any noises beyond some temporary clicking upon startup and a soft hum is a sign that something is amiss. With that in mind, let us explain the reasons behind three unusual furnace sounds.
Shrieking or Whistling
Because of how jarring and annoying they can be, we’ll discuss shrieks and whistles under the same heading, even though they each have different causes. Squealing or shrieking noises usually suggest that something is wrong with your furnace’s motor. The motor probably has a faulty belt, and a trained service technician will need to replace it.
Whistling noises often result when air blows past or through debris that creates friction. Therefore, this noise generally means that something, like a dirty air filter, is obstructing the flow of air through your furnace. To make sure that your furnace’s filters don’t become dirty enough to curtail the movement of air, you’ll need to clean or replace them roughly once every 90 days.
Buzzing
If some part inside your furnace has wiggled loose, it’ll start shaking around and may create buzzing or vibrating noises. The way to eliminate these sounds is to ask an HVAC service technician to fasten the parts that have come loose and return them to their proper places. Ideally, service technicians would do this as part of furnace maintenance.
Banging
Though a variety of things can cause banging sounds to come from your furnace, most of them will saddle you with serious risks if you don’t address them. For example, bits of gas may sometimes build up in your furnace’s combustion chamber and explode once the system ignites. Since this event can trigger a carbon monoxide leak, immediately request HVAC services after you hear banging.
No homeowner in Marion, NC, can afford to ignore the foregoing furnace sounds. If you hear them, call Gentry Service Group and ask for our heating services immediately.
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