11/12/2026
If your heater’s been running… has it started talking to you?
Heating systems are full of moving parts. A fan runs for hours at a time, the burners light many times a day, and the metal expands as it heats up and contracts as it cools. So some noise is completely normal.
What’s normal?
✅ A soft whoosh when the burners light
✅ A steady hum from the blower fan
✅ A light tick or pop as metal ducts warm up and cool down
Others are worth a closer listen:
🔈 Squealing or screeching - Often a worn belt or motor bearing that needs attention
🔈 Rattling - Usually something’s loose, like a panel or part inside
🔈 A loud bang or boom when starting - Can mean the burners aren’t lighting cleanly
🔈 Clicking that won’t stop - Often an ignition issue, when the system keeps trying to light
🔈 Grinding - A motor that may be wearing out
It’s not the noise that matters; it’s the change. If your heater sounds different than it did last winter, or even last week, it’s usually telling you something.
Notice when it happens (starting up, running, or shutting off), because that helps a technician pin it down faster.
A tune-up is how you find out what it’s saying before a small noise turns into a no-heat night.
👇What sounds does yours make?
📅 Book your $99 heating tune-up https://brookshvac.com/heating-maintenance-services/
📞 Call (703) 972-5227
