Furnace Noises: What They Mean & How to Fix Them | Top Hat

Is your furnace making strange sounds? Some noises are normal, but others can signal trouble. Knowing the difference can help you avoid costly repairs and keep your home warm and comfortable all winter long.

Common Furnace Noises and What They Mean

• Buzzing or Humming – May indicate electrical issues with the blower motor, capacitor, or transformer.

• Clicking – A few clicks at startup are normal. Repeated clicking could mean ignition problems or loose parts.

• Banging or Booming – Could be delayed ignition causing gas buildup. This is serious and needs immediate attention.

• Squealing or Screeching – Often caused by a worn belt, failing bearing, or blower motor problem.

• Rattling – Usually loose panels, screws, or ductwork.

• Gurgling – In water-based systems, this may point to air in the pipes or a circulation issue.

When to Call a Professional

• Loud bangs, constant buzzing, or clicking without ignition should never be ignored.

• Annual furnace maintenance helps prevent unexpected breakdowns.

• If you’re unsure, schedule an inspection with Top Hat, your local HVAC professional.

Furnace Care You Can Trust

At Top Hat, we’ve been helping Baraboo-area homeowners with expert HVAC installations and services for decades. If your furnace is making unusual noises, our team can diagnose the problem and get your system running safely and efficiently again.

👉 Call Top Hat today at 608-356-7268 and schedule your service to keep your furnace running smoothly this winter.