If your furnace is making unusual sounds in Hamilton County—whether you’re in Carmel, Fishers, Noblesville, or Westfield—it’s usually a sign that something needs attention. Here are some common causes:

1. Banging or Popping – Often caused by delayed gas ignition or ductwork expanding and contracting. While a minor pop is sometimes normal, repeated banging may require a professional inspection.

2. Rattling – Loose panels, screws, or internal components can create rattling noises when the furnace starts or stops.

3. Squealing or Screeching – This can indicate a worn-out blower belt, motor issue, or lack of lubrication in moving parts.

4. Clicking – Some clicking is normal during startup, but continuous clicking may point to a faulty ignitor, relay, or other electrical component.

5. Whooshing or Hissing – These sounds can signal air leaks in ductwork or issues with gas flow.

What You Should Do:

• Turn off the furnace and inspect for visible loose panels or debris near vents.

• Check your filter—dirty filters can make the blower work harder, causing unusual sounds.

• If the noise continues, contact Integrity to schedule a professional inspection. Ignoring strange furnace noises can lead to reduced efficiency, higher energy bills, or even safety hazards.