A noisy furnace can disrupt your peace and often signals underlying HVAC issues. From rattling to high-pitched squeals, different sounds point to different problems. The good news? Many furnace noises can be diagnosed and fixed quickly. Here’s how to troubleshoot the most common furnace sounds and keep your home cozy and quiet.
Common Furnace Noises and What They Mean
Banging or Popping
Cause: Expanding and contracting ductwork or delayed ignition in the burner.
Solution: Check if ducts are secure and insulated. For delayed ignition, call a professional.
Squealing or Screeching
Cause: Malfunctioning motor bearings or debris in the blower assembly.
Solution: Turn off the furnace and inspect the blower motor. Persistent issues need a technician.
Rattling
Cause: Loose panels or internal components.
Solution: Tighten panels and check for loose parts inside the furnace.
Booming
Cause: Gas buildup due to delayed ignition.
Solution: Shut off the furnace and call a professional immediately.
Want to know what humming, buzzing, or clicking sounds could mean? Read our full blog to dive deeper into furnace noise troubleshooting tips.
If strange furnace noises are disrupting your home, contact Affordable Comfort today. Our expert HVAC technicians will help keep your home warm, quiet, and safe.
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