Why Is My Furnace Making Noises?

As the temperatures begin to drop, the last thing anyone wants is for their furnace to start making strange noises. Not only can the sounds be annoying, but they can also indicate a problem that could lead to costly repairs or even a furnace breakdown.

If you hear your furnace making noises, it’s important to investigate the cause as soon as possible. In this blog post, our HVAC experts at AAA Heating & Air will cover the different types of noises your furnace may make, what could be causing them, and whether a DIY fix or professional repair is needed.

Whistling or Popping Sounds

If your furnace is making whistling or popping sounds, it could indicate a problem with airflow. This could be caused by a dirty air filter, blocked air ducts, a closed vent, or a malfunctioning blower motor. To fix this issue, start by checking and replacing your air filters. If the problem persists, check for any blockages in your air ducts or vents. If you’re unable to identify the problem on your own, then call in a professional to diagnose and fix the issue.

Rattling or Banging Sounds

Rattling or banging sounds coming from your furnace could indicate a problem with your furnace’s blower assembly or motor. Loose parts or debris in these components can cause a rattling sound, while a malfunctioning motor can cause a banging sound. See if you can find any loose parts that you can tighten and remove any visual debris. If you have performed these tasks and your furnace is still making noise, call a professional.

Grinding or Squeaking Sounds

If your furnace is making grinding or squeaking sounds, it usually means that the furnace’s blower motor is malfunctioning or that there is a problem with the furnace’s bearings. This is a serious issue that can cause further damage to your furnace if not addressed promptly. Call a professional as soon as possible to schedule repairs.

Hissing or Clicking Sounds

Hissing or clicking sounds coming from your furnace could indicate a problem with your furnace’s electrical components. This can be caused by a malfunctioning thermostat or an issue with the furnace’s control board. Because working with electricity can be dangerous, it is safest to call a certified technician to diagnose and repair this issue.

Booming or Explosive Sounds

A booming or explosive sound coming from your furnace can be scary, but it’s important to stay calm and take action. This could indicate a potentially dangerous issue with your furnace, such as a gas leak or a faulty heat exchanger. If you hear this type of sound, turn off your furnace immediately and seek professional help.

Choose AAA Heating & Air for Your Furnace Maintenance

If you hear your furnace making any strange noises, it’s important to investigate and address the issue as soon as possible. In many cases, a DIY fix such as changing your air filter can solve the problem. However, some issues require the expertise of a professional furnace technician. Ignoring strange furnace noises can lead to costly repairs or even a total furnace breakdown.

If you’re unsure about the cause of the noise or if you need professional furnace repair, turn to AAA Heating & Air. Our expert technicians can get to the root of your noisy furnace and fix it in no time. We’re also available 24/7, so don’t hesitate to reach out to us if you have a furnace emergency!

Call (253) 234-1278 to schedule furnace repairs in Kent, WA, or the surrounding areas.