Why Is My Furnace Making Noise?

Handling Your Home Comfort Needs in Winters, CA

There’s something unsettling about hearing your furnace kick on and start making strange noises that keep you up at night. The team of HVAC and furnace experts at Pearce Heating & Air has heard (and seen) it all. We work on all types of furnace repairs, maintenance, and installations. We’re no stranger to those strange furnace sounds and are here to put your mind at ease. Here’s what to know about furnace noises and how to stop them.

Whistling Noises

If you hear your furnace whistling, you probably have an airflow problem, which can indicate:

  • Blocked or dirty air filters
  • Closed or blocked air vents
  • Ductwork leaks, tears, or gaps

You may be able to resolve it with a simple air filter replacement or making sure the vents are actually open. If the whistling is persistent, you may need a professional air duct repair, cleaning, or adjustment. Call the team at Pearce Heating & Air to take a look and assess what’s going on. We’ll go over the problem, solution, and options so you can make an informed decision about next steps.

Rattling Noises

Is your furnace rattling and sounding like it’s going to walk out the door? The common culprits are:

  • Loose components or panels in your furnace that need tightening
  • Problems within the blower assembly
  • Overall mechanical problems

Try securing any of the loose elements you see to resolve the issue. If the rattling continues, you may need furnace maintenance or repair to take care of the problem. If your furnace is over 10 years old or experiencing frequent repairs, you may need a new furnace installation. Pearce Heating & Air also offers flexible financing options to make your investment as stress-free as possible.

Screeching Sounds

Screeching or squealing noises can get loud and make it impossible to sleep, focus, or relax. Some of the root causes are:

  • Lack of lubrication
  • Wear and tear that may signal your furnace is failing

Never ignore screeching sounds, as you may need an urgent furnace repair or a more efficient unit. Letting the issue go could permanently damage your unit and make it difficult (if impossible) to repair.

Banging Sounds

Homeowners are often startled by banging noises and do not realize where they’re coming from. These sounds often indicate:

  • You have a delayed ignition that could pose a danger to your home
  • Your ductwork is going through expansion and contraction. Although less concerning, it’s a red flag that your system isn’t working efficiently and your energy bills are probably on the rise.

If you’re not sure what’s going on, don’t leave it up to chance or try to guess. Call the professionals at Pearce Heating & Air for furnace maintenance, repair, or a full replacement to restore the warmth and safety of your home.

Buzzing Noises

Are you hearing annoying buzzing sounds that don’t seem to stop? Although many appliances will buzz, these sounds are usually a sign of an electrical issue inside of your:

  • Transformer
  • Blower motor’s capacitor


Electrical problems should always be handled urgently. They pose a significant safety concern and may mean you need a new furnace before it puts your entire household at risk. We’ll take a look, let you know if it’s a serious issue or repair and guide you through the most cost-effective solution while keeping your home safe.

Call Pearce Heating & Air Today for Furnace Repair, Installation, and More

Need a furnace repair or replacement? Stay warm on those cool nights with furnace repair, installation, maintenance, and more. Our team is here to help with all the furnace work you need to keep your home comfortable and quiet. Call to schedule your appointment today!

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