HVAC Noises

HVAC systems sometimes hum to remind you that they’re running, but hearing such a sound isn’t always a cause for concern. However, it’s a different story when they suddenly make abnormal sounds. If you hear any of these noises, it means you need to call a technician and schedule a furnace or air conditioning repair: 1. Popping If your system uses metal ducts to circulate conditioned air around your home, you ...